EVAL-ADM2687EEBZ_技术文档

5 kV rms Signal and Power Isolated

RS-485 Transceiver with ± ±5 kV ꢀSꢁ

AꢁM2682ꢀ/AꢁM2687ꢀ

FEATURES

FUNCTIONAL BLOCK DIAGRAM

V

ISOOUT

CC

5 kV rms isolated RS-485/RS-422 transceiver, configurable as

half or full duplex

isoPower DC-TO-DC CONVERTER

isoPower integrated isolated dc-to-dc converter

15 kV ESD protection on RS-485 input/output pins

Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E)

Data rate: 16 Mbps (ADM2682E), 500 kbps (ADM2687E)

5 V or 3.3 V operation

OSCILLATOR

RECTIFIER

V

ISOIN

REGULATOR

Connect up to 256 nodes on one bus

Open- and short-circuit, fail-safe receiver inputs

High common-mode transient immunity: >25 kV/μs

Thermal shutdown protection

TRANSCEIVER

D

DIGITAL ISOLATION iCoupler

Y

Z

ENCODE

DECODE

ENCODE

TxD

DE

Safety and regulatory approvals

UL recognition (pending)

5000 V rms for 1 minute per UL 1577

ENCODE

DECODE

CSA Component Acceptance Notice #5A (pending)

IEC 60601-1: 400 V rms (basic), 250 V rms (reinforced)

IEC 60950-1: 600 V rms (basic), 380 V rms (reinforced)

VDE Certificates of Conformity (pending)

DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01

A

B

RxD

R

RE

ADM2682E/ADM2687E

V

_IORM= 846 V peak

Operating temperature range: −40°C to +85°C

16-lead wide-body SOIC with >8 mm creepage and clearance

GND

2

1

ISOLATION

BARRIER

Figure 1.

APPLICATIONS

Isolated RS-485/RS-422 interfaces

Industrial field networks

Multipoint data transmission systems

GENERAL DESCRIPTION

The ADM2682E/ADM2687E are fully integrated 5 kV rms

signal and power isolated data transceivers with ±±5 kV EꢀD

protection and are suitable for high speed communication on

multipoint transmission lines. The ADM2682E/ADM2687E

include an integrated 5 kV rms isolated dc-to-dc power supply

that eliminates the need for an external dc-to-dc isolation block.

The ADM2682E/ADM2687E drivers have an active high enable.

An active low receiver enable is also provided, which causes the

receiver output to enter a high impedance state when disabled.

The devices have current limiting and thermal shutdown

features to protect against output short circuits and situations

where bus contention may cause excessive power dissipation.

The parts are fully specified over the industrial temperature

range and are available in a highly integrated, ±6-lead, wide-

body ꢀOIC package with >8 mm creepage and clearance.

They are designed for balanced transmission lines and comply

with ANꢀI/TIA/EIA-485-A-98 and IꢀO 8482:±987(E).

The devices integrate Analog Devices, Inc., iCoupler® technology to

combine a 3-channel isolator, a three-state differential line driver, a

differential input receiver, and Analog Devices isoPower® dc-to-dc

converter into a single package. The devices are powered by a

single 5 V or 3.3 V supply, realizing a fully integrated signal and

power isolated Rꢀ-485 solution.

The ADM2682E/ADM2687E contain isoPower technology that

uses high frequency switching elements to transfer power through

the transformer. ꢀpecial care must be taken during printed circuit

board (PCB) layout to meet emissions standards. Refer to

AN-097± Application Note, Recommendations for Control of

Radiated Emissions with isoPower Devices, for details on board

layout considerations.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

AꢁM2682ꢀ/AꢁM2687ꢀ

TABLꢀ OF CONTꢀNTS

Features .............................................................................................. ±

ꢀwitching Characteristics .............................................................. ±5

Circuit Description......................................................................... ±6

ꢀignal Isolation ........................................................................... ±6

Power Isolation ........................................................................... ±6

Truth Tables................................................................................. ±6

Thermal ꢀhutdown .................................................................... ±6

Open- and ꢀhort-Circuit, Fail-ꢀafe Receiver Inputs.............. ±6

DC Correctness and Magnetic Field Immunity........................... ±6

Applications Information.............................................................. ±8

PCB Layout ................................................................................. ±8

EMI Considerations................................................................... ±8

Insulation Lifetime..................................................................... ±9

Isolated ꢀupply Considerations ................................................ ±9

Typical Applications................................................................... 20

Outline Dimensions....................................................................... 22

Ordering Guide .......................................................................... 22

Applications....................................................................................... ±

Functional Block Diagram .............................................................. ±

General Description......................................................................... ±

Revision History ............................................................................... 2

ꢀpecifications..................................................................................... 3

ADM2682E Timing ꢀpecifications ............................................ 4

ADM2687E Timing ꢀpecifications ............................................ 4

Package Characteristics ............................................................... 4

Regulatory Information............................................................... 5

Insulation and ꢀafety-Related ꢀpecifications............................ 5

VDE 0884 Insulation Characteristics (Pending)...................... 6

Absolute Maximum Ratings............................................................ 7

EꢀD Caution.................................................................................. 7

Pin Configuration and Function Descriptions............................. 8

Typical Performance Characteristics ............................................. 9

Test Circuits..................................................................................... ±4

REVISION HISTORY

7/11—Revision 0: Initial Version

Rev. 0 | Page 2 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

SPꢀCIFICATIONS

All voltages are relative to their respective ground; 3.0 ≤ V_CC≤ 5.5 V. All minimum/maximum specifications apply over the entire

recommended operation range, unless otherwise noted. All typical specifications are at T_A= 25°C, V_CC= 5 V unless otherwise noted.

Table 1.

Parameter

Symbol Min

Typ

Max

Unit

Test Conditions/Comments

ADM2687E SUPPLY CURRENT

Data Rate ≤ 500 kbps

I_CC

90

72

125

98

mA

V_CC= 3.3 V, 100 Ω load between Y and Z

V_CC= 5 V, 100 Ω load between Y and Z

V_CC= 3.3 V, 54 Ω load between Y and Z

V_CC= 5 V, 54 Ω load between Y and Z

120 Ω load between Y and Z

140

ADM2682E SUPPLY CURRENT

Data Rate = 16 Mbps

I_CC

175

260

130

200

mA

V

120 Ω load between Y and Z

54 Ω load between Y and Z

120 Ω load between Y and Z

54 Ω load between Y and Z

Data Rate = 16 Mbps, 4.5 ≤ V_CC≤ 5.5 V

ISOLATED SUPPLY VOLTAGE

DRIVER

V_ISOOUT

3.3

Differential Outputs

Differential Output Voltage, Loaded

|V_OD2

|

2.0

1.5

3.6

0.2

3.0

0.2

200

30

V

mA

μA

R_L= 100 Ω (RS-422), see Figure 29

R_L= 54 Ω (RS-485), see Figure 29

−7 V ≤ V_TEST1≤ 12 V, see Figure 30

R_L= 54 Ω or 100 Ω, see Figure 29

|V_OD3

Δ|V_OD| for Complementary Output States Δ|V_OD|

Common-Mode Output Voltage

Δ|V_OC| for Complementary Output States

Short-Circuit Output Current

V_OC

Δ|V_OC|

I_OS

Output Leakage Current (Y, Z)

I_O

DE = 0 V, RE = 0 V, V_CC= 0 V or 3.6 V,

V_IN= 12 V

−30

μA

DE = 0 V, RE = 0 V, V_CC= 0 V or 3.6 V,

V_IN= −7 V

Logic Inputs DE, RE, TxD

Input Threshold Low

Input Threshold High

Input Current

V_IL

V_IH

I_I

0.27 V_CC

−10

V

DE, RE, TxD

0.7 V_CC

10

V

0.01

μA

RECEIVER

Differential Inputs

Differential Input Threshold Voltage

Input Voltage Hysteresis

Input Current (A, B)

V_TH

V_HYS

I_I

−200

−125

15

−30

125

mV

μA

kΩ

−7 V < V_CM< +12 V

V_OC= 0 V

DE = 0 V, V_CC= 0 V or 3.6 V, V_IN= 12 V

DE = 0 V, V_CC= 0 V or 3.6 V, V_IN= −7 V

−7 V < V_CM< +12 V

−100

96

Line Input Resistance

Logic Outputs

R_IN

Output Voltage Low

Output Voltage High

V_OL

V_OH

0.2

0.4

V

I_O= 1.5 mA, V_A− V_B= −0.2 V

I_O= −1.5 mA, V_A− V_B= 0.2 V

V_CC− 0.3 V_CC− 0.2

Short-Circuit Current

100

mA

COMMON-MODE TRANSIENT IMMUNITY¹

25

kV/μs V_CM= 1 kV, transient magnitude = 800 V

¹CM is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation. V_CMis the common-mode potential

difference between the logic and bus sides. The transient magnitude is the range over which the common-mode is slewed. The common-mode voltage slew rates

apply to both rising and falling common-mode voltage edges.

Rev. 0 | Page 3 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

ADM2682E TIMING SPECIFICATIONS

T_A= −40°C to +85°C.

Table 2.

Parameter

Symbol

Min Typ Max Unit

Test Conditions/Comments

DRIVER

Maximum Data Rate

Propagation Delay, Low to High t_DPLH

Propagation Delay, High to Low t_DPHL

Output Skew

Rise Time/Fall Time

Enable Time

16

Mbps

ns

63

64

1

100

8

15

120

150

R_L= 54 Ω, C_L1= C _L2= 100 pF, see Figure 31 and Figure 35

R_L= 54 Ω, C_L1= C_L2= 100 pF, see Figure 31 and Figure 35

R_L= 110 Ω, C_L= 50 pF, see Figure 32 and Figure 37

t_SKEW

t_DR, t_DF

t_ZL, t_ZH

t_LZ, t_HZ

ns

Disable Time

RECEIVER

Propagation Delay, Low to High t_RPLH

Propagation Delay, High to Low t_RPHL

94

95

1

110

12

15

ns

C_L= 15 pF, see Figure 33 and Figure 36

R_L= 1 kΩ, C_L= 15 pF, see Figure 34 and Figure 38

Output Skew¹

Enable Time

Disable Time

t_SKEW

t_ZL, t_ZH

t_LZ, t_HZ

¹Guaranteed by design.

ADM2687E TIMING SPECIFICATIONS

T_A= −40°C to +85°C.

Table 3.

Parameter

Symbol

Min Typ Max

Unit

Test Conditions/Comments

DRIVER

Maximum Data Rate

Propagation Delay, Low to High t_DPLH

Propagation Delay, High to Low t_DPHL

Output Skew

Rise Time/Fall Time

Enable Time

500

250

kbps

ns

503

510

7

700

100

R_L= 54 Ω, C_L1= C _L2= 100 pF, see Figure 31 and Figure 35

R_L= 54 Ω, C_L1= C_L2= 100 pF, see Figure 31 and Figure 35

R_L= 110 Ω, C_L= 50 pF, see Figure 32 and Figure 37

t_SKEW

ns

t_DR, t_DF

t_ZL, t_ZH

t_LZ, t_HZ

200

1100 ns

2.5

200

μs

ns

Disable Time

RECEIVER

Propagation Delay, Low to High t_RPLH

Propagation Delay, High to Low t_RPHL

91

95

4

200

30

15

ns

C_L= 15 pF, see Figure 33 and Figure 36

R_L= 1 kΩ, C_L= 15 pF, see Figure 34 and Figure 38

Output Skew

Enable Time

Disable Time

t_SKEW

t_ZL, t_ZH

t_LZ, t_HZ

PACKAGE CHARACTERISTICS

Table 4.

Parameter

Symbol

R_I-O

C_I-O

Min

Typ

10¹²

3

Max

Unit

Ω

pF

Test Conditions/Comments

Resistance (Input-to-Output)¹

Capacitance (Input-to-Output)¹

Input Capacitance²

f = 1 MHz

C_I

4

pF

¹Device considered a 2-terminal device: short together Pin 1 to Pin 8 and short together Pin 9 to Pin 16.

²Input capacitance is from any input data pin to ground.

Rev. 0 | Page 4 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

REGULATORY INFORMATION

Table 5. ADM2682E/ADM2687E Approvals (Pending)

Organization

Approval Type

To be recognized under the UL 1577 Component Recognition Program of Underwriters Laboratories, Inc.

Single protection, 5000 V rms isolation voltage.

UL (Pending)

In accordance with UL 1577, each ADM2682E/ADM2687E is proof tested by applying an insulation test voltage

≥ 6000 V rms for 1 second.

To be approved under CSA Component Acceptance Notice #5A.

CSA (Pending)

VDE (Pending)

Reinforced insulation per IEC 60601-1, 250 V rms (353 V peak) maximum working voltage.

Basic insulation per IEC 60601-1, 400 V rms (566 V peak) maximum working voltage.

Reinforced insulation per CSA 60950-1-07 and IEC 60950-1, 380 V rms (537 V peak) maximum working voltage.

Basic insulation per CSA 60950-1-07 and IEC 60950-1, 600 V rms (848 V peak) maximum working voltage.

To be certified according to DIN EN 60747-5-2 (VDE 0884 Part 2):2003-01.

In accordance with DIN EN 60747-5-2, each ADM2682E/ADM2687E is proof tested by applying an insulation test voltage

≥1590 V peak for 1 second.

INSULATION AND SAFETY-RELATED SPECIFICATIONS

Table 6.

Parameter

Symbol Value

Unit

Test Conditions/Comments

Rated Dielectric Insulation Voltage

Minimum External Air Gap (Clearance)

5000

>8.0

V rms 1-minute duration

L(I01)

L(I02)

mm

Measured from input terminals to output terminals,

shortest distance through air

Measured from input terminals to output terminals,

shortest distance along body

Minimum External Tracking (Creepage)

>8.0

Minimum Internal Gap (Internal Clearance)

Tracking Resistance (Comparative Tracking Index)

Isolation Group

0.017 min mm

Insulation distance through insulation

DIN IEC 112/VDE 0303-1

Material Group (DIN VDE 0110:1989-01, Table 1)

CTI

>175

IIIa

V

Rev. 0 | Page 5 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

VDE 0884 INSULATION CHARACTERISTICS (PENDING)

This isolator is suitable for basic electrical isolation only within the safety limit data. Maintenance of the safety data must be ensured by

means of protective circuits.

Table 7.

Description

Test Conditions/Comments

Symbol Characteristic Unit

CLASSIFICATIONS

Installation Classification per DIN VDE 0110 for

Rated Mains Voltage

≤300 V rms

≤450 V rms

≤600 V rms

I to IV

I to III

I to II

40/85/21

2

Climatic Classification

Pollution Degree

VOLTAGE

Table 1 of DIN VDE 0110

Maximum Working Insulation Voltage

Input-to-Output Test Voltage

Method b1

V_IORM

V_PR

846

V peak

V_IORM× 1.875 = V_PR, 100% production tested,

t_m= 1 sec, partial discharge < 5 pC

1590

Method a

After Environmental Tests, Subgroup 1

After Input and/or Safety Test,

Subgroup 2/Subgroup 3

V_IORM× 1.6 = V_PR, t_m= 60 sec, partial discharge < 5 pC

V_IORM× 1.2 = V_PR, t_m= 60 sec, partial discharge < 5 pC

1375

1018

V peak

Highest Allowable Overvoltage

SAFETY-LIMITING VALUES

Case Temperature

Input Current

Output Current

Transient overvoltage, t_TR= 10 sec

V_TR

6000

V peak

Maximum value allowed in the event of a failure

T_S

150

265

335

>10⁹

°C

I_{S, INPUT}

I_{S, OUTPUT}

R_S

mA

Ω

Insulation Resistance at T_S

V_IO= 500 V

Rev. 0 | Page 6 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

ABSOLUTꢀ MAXIMUM RATINGS

T_A= 25°C, unless otherwise noted. All voltages are relative to

their respective ground.

Table 9. Maximum Continuous Working Voltage¹

Parameter

Max Unit

Reference Standard

AC Voltage

Bipolar Waveform

Table 8.

Parameter

424

V peak All certifications,

50-year minimum

lifetime

Rating

V_CC

−0.5 V to +7 V

−0.5 V to V_DD+ 0.5 V

−9 V to +14 V

−40°C to +85°C

−55°C to +150°C

15 kV

Digital Input Voltage (DE, RE, TxD)

Digital Output Voltage (RxD)

Driver Output/Receiver Input Voltage

Operating Temperature Range

Storage Temperature Range

Unipolar Waveform

Basic Insulation

600

V peak

Reinforced Insulation 537

V peak Maximum approved

working voltage per

IEC 60950-1

DC Voltage

Basic Insulation

Reinforced Insulation

ESD (Human Body Model) on

A, B, Y, and Z pins

600

537

V peak

2 kV

ESD (Human Body Model) on Other Pins

Thermal Resistance θ_JA

Lead Temperature

Soldering (10 sec)

Vapor Phase (60 sec)

Infrared (15 sec)

V peak Maximum approved

working voltage per

IEC 60950-1

52°C/W

¹Refers to continuous voltage magnitude imposed across the isolation

barrier. See the Insulation Lifetime section for more details.

260°C

215°C

220°C

ESD CAUTION

ꢀtresses above those listed under Absolute Maximum Ratings

may cause permanent damage to the device. This is a stress

rating only; functional operation of the device at these or any

other conditions above those indicated in the operational

section of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect

device reliability.

Rev. 0 | Page 7 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

PIN CONFIGURATION ANꢁ FUNCTION ꢁꢀSCRIPTIONS

GND

1

2

3

4

5

6

7

8

16 GND

1

2

V

15

14

13

12

11

10

9

V

ISOIN

CC

RxD

RE

A

B

Z

ADM2682E/

ADM2687E

DE

TOP VIEW

(Not to Scale)

TxD

Y

V

ISOOUT

CC

GND

2

1

NOTES

1. PIN 10 AND PIN 15 MUST BE

CONNECTED EXTERNALLY.

Figure 2. Pin Configuration

Table 10. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

2

GND₁

V_CC

Ground, Logic Side.

Logic Side Power Supply. It is recommended that a 0.1 μF and a 0.01 μF decoupling capacitor be fitted between

Pin 2 and Pin 1.

3

4

RxD

RE

Receiver Output Data. This output is high when (A − B) ≥ −30 mV and low when (A − B) ≤ –200 mV. The output is

tristated when the receiver is disabled, that is, when RE is driven high.

Receiver Enable Input. This is an active-low input. Driving this input low enables the receiver, while driving it high

disables the receiver.

5

6

7

DE

TxD

V_CC

Driver Enable Input. Driving this input high enables the driver, while driving it low disables the driver.

Driver Input. Data to be transmitted by the driver is applied to this input.

Logic Side Power Supply. It is recommended that a 0.1 μF and a 10 μF decoupling capacitor be fitted between

Pin 7 and Pin 8.

8

9

10

GND₁

GND₂

V_ISOOUT

Ground, Logic Side.

Ground, Bus Side.

Isolated Power Supply Output. This pin must be connected externally to V_ISOIN. It is recommended that a reservoir

capacitor of 10 μF and a decoupling capacitor of 0.1 μF be fitted between Pin 10 and Pin 9.

11

12

13

14

15

Y

Z

B

A

Driver Noninverting Output

Driver Inverting Output

Receiver Inverting Input.

Receiver Noninverting Input.

Isolated Power Supply Input. This pin must be connected externally to V_ISOOUT. It is recommended that a 0.1 μF

and a 0.01 μF decoupling capacitor be fitted between Pin 15 and Pin 16.

V_ISOIN

16

GND₂

Ground, Bus Side.

Rev. 0 | Page 8 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

TYPICAL PꢀRFORMANCꢀ CHARACTꢀRISTICS

200

140

120

100

80

180

160

R

= 54Ω

L

R

= 54Ω

L

140

120

100

80

R

= 120Ω

L

R

= 120Ω

L

60

40

NO LOAD

40

20

0

–40

–15

10

35

60

85

16

1

4

7

10

13

16

85

TEMPERATURE (°C)

DATA RATE (Mbps)

Figure 3. ADM2682E Supply Current (I_CC) vs. Temperature

(Data Rate = 16 Mbps, DE = 3.3 V, V_CC= 3.3 V)

Figure 6. ADM2682E Supply Current (I_CC) vs. Data Rate

(T_A= 25°C, DE = 5 V, V_CC= 5 V)

160

120

100

80

60

40

20

0

140

120

100

80

R

= 54Ω

R

= 54Ω

L

R

= 120Ω

L

R

= 120Ω

L

60

NO LOAD

40

NO LOAD

20

0

–40

–15

10

35

60

–40

–15

10

35

60

TEMPERATURE (°C)

Figure 4. ADM2682E Supply Current (I_CC) vs. Temperature

(Data Rate = 16 Mbps, DE = 5 V, V_CC= 5 V)

Figure 7. ADM2687E Supply Current (I_CC) vs. Temperature

(Data Rate = 500 kbps, DE = 5 V, V_CC= 5 V)

180

160

140

120

100

80

140

120

100

80

R

= 54Ω

L

R

= 54Ω

L

R

= 120Ω

L

R

= 120Ω

L

60

40

NO LOAD

20

0

1

4

7

10

13

–40

–15

10

35

60

DATA RATE (Mbps)

TEMPERATURE (°C)

Figure 5. ADM2682E Supply Current (I_CC) vs. Data Rate

(T_A= 25°C, DE = 3.3 V, V_CC= 3.3 V)

Figure 8. ADM2687E Supply Current (I_CC) vs. Temperature

(Data Rate = 500 kbps, DE = 3.3 V, V_CC= 3.3 V)

Rev. 0 | Page 9 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

140

600

580

560

540

520

500

480

460

440

420

400

R

= 54Ω

L

120

100

80

60

40

20

0

t_DPLH

R

= 120Ω

L

t_DPHL

NO LOAD

50

125

200

275

350

425

500

85

–40

–15

10

35

60

85

TEMPERATURE (°C)

DATA RATE (kbps)

Figure 9. ADM2687E Supply Current (I_CC) vs. Data Rate

(T_A= 25°C, DE = 3.3 V, V_CC= 3.3 V)

Figure 12. ADM2687E Differential Driver Propagation Delay vs. Temperature

120

100

80

60

40

20

0

R

= 54Ω

L

TxD

R

= 120Ω

L

1

Z

Y

NO LOAD

3

CH1 2.0V CH2 2.0V

CH3 2.0V

M10.00ns

A

CH1

1.28V

50

125

200

275

350

425

DATA RATE (kbps)

Figure 10. ADM2687E Supply Current (I_CC) vs. Data Rate

(T_A= 25°C, DE = 5 V, V_CC= 5 V)

Figure 13. ADM2682E Driver Propagation Delay

72

70

68

66

64

62

60

58

56

54

52

50

t_DPHL

t_DPLH

TxD

1

Z

Y

3

CH1 2.0V CH2 2.0V

CH3 2.0V

M200ns

A

CH1

2.56V

–40

–15

10

35

60

TEMPERATURE (°C)

Figure 11. ADM2682E Differential Driver Propagation Delay vs. Temperature

Figure 14. ADM2687E Driver Propagation Delay

Rev. 0 | Page 10 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

0

–10

–20

–30

–40

–50

–60

–70

0.32

0.30

0.28

0.26

0.24

0.22

0.20

–40

–15

10

35

60

85

0

1

2

3

4

5

TEMPERATURE (°C)

OUTPUT HIGH VOLTAGE (V)

Figure 18. Receiver Output Low Voltage vs. Temperature

Figure 15. Receiver Output Current vs. Receiver Output High Voltage

60

50

40

30

20

10

0

B

A

1

RxD

3

CH1 2.0V CH2 2.0V

CH3 2.0V

M10.00ns

A

CH1

2.56V

0

1

2

3

4

5

OUTPUT LOW VOLTAGE (V)

Figure 16. Receiver Output Current vs. Receiver Output Low Voltage

Figure 19. ADM2682E Receiver Propagation Delay

4.75

4.74

A

B

4.73

4.72

4.71

4.70

4.69

4.68

4.67

1

RxD

3

4.66

4.65

CH1 2.0V CH2 2.0V

CH3 2.0V

M10.00ns

A

CH1

2.56V

–40

–15

10

35

60

85

TEMPERATURE (°C)

Figure 17. Receiver Output High Voltage vs. Temperature

Figure 20. ADM2687E Receiver Propagation Delay

Rev. 0 | Page 11 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

3.44

3.43

3.42

3.41

3.40

3.39

3.38

3.37

3.36

3.35

3.34

98

97

96

t_RPHL

NO LOAD

95

94

93

92

t_RPLH

R

= 120Ω

L

R

= 54Ω

L

–40

–15

10

35

60

85

–40

–15

10

35

60

85

TEMPERATURE (°C)

Figure 21. ADM2682E Receiver Propagation Delay vs. Temperature

Figure 24. ADM2682E Isolated Supply Voltage vs. Temperature

(V_CC= 5 V, Data Rate = 16 Mbps)

3.37

100

99

98

97

96

3.36

3.35

NO LOAD

3.34

t_RPHL

R

= 120Ω

95

L

3.33

3.32

3.31

3.30

94

93

R

= 54Ω

L

92

t_RPLH

91

90

–40

–15

10

35

60

85

–15

10

35

60

85

TEMPERATURE (°C)

Figure 25. ADM2687E Isolated Supply Voltage vs. Temperature

(V_CC= 3.3 V, Data Rate = 500 kbps)

Figure 22. ADM2687E Receiver Propagation Delay vs. Temperature

3.39

3.38

3.37

3.36

3.39

3.38

NO LOAD

3.37

R

= 120Ω

L

NO LOAD

3.35

3.36

3.35

3.34

3.33

R

= 120Ω

R

= 54Ω

L

3.34

3.33

3.32

3.31

R

= 54Ω

L

–40

–15

10

35

60

85

–40

–15

10

35

60

85

TEMPERATURE (°C)

Figure 26. ADM2687E Isolated Supply Voltage vs. Temperature

(V_CC= 5 V, Data Rate = 500 kbps

Figure 23. ADM2682E Isolated Supply Voltage vs. Temperature

(V_CC= 3.3 V, Data Rate = 16 Mbps)

Rev. 0 | Page 12 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

60

50

40

30

20

10

0

40

35

30

25

20

15

10

5

R

= 54Ω

L

R

= 54Ω

L

R

= 120Ω

L

R

= 120Ω

L

NO LOAD

0

–40

–15

10

35

60

85

–40

–15

10

35

60

85

TEMPERATURE (°C)

Figure 27. ADM2682E Isolated Supply Current vs. Temperature

(V_CC= 3.3 V, Data Rate = 16 Mbps)

Figure 28. ADM2687E Isolated Supply Current vs. Temperature

(V_CC= 3.3 V, Data Rate = 500 kbps)

Rev. 0 | Page 13 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

TꢀST CIRCUITS

Y

R

L

2

TxD

V

OD2

V

CC

OUT

R

L

Y

Z

R

110ꢀ

L

Z

2

V

OC

TxD

DE

S1

S2

C

L

50pF

Figure 29. Driver Voltage Measurement

Figure 32. Driver Enable/Disable

Y

375ꢀ

A

V

60ꢀ

TxD

OD3

RxD

375ꢀ

V

Z

OUT

V

TEST

RE

B

C

L

Figure 30. Driver Voltage Measurement over Common Mode

Figure 33. Receiver Propagation Delay

V

+1.5V

–1.5V

CC

Y

C

L

S1

TxD

R

L

RxD

L

S2

L

RE

Z

C

V

OUT

L

RE IN

Figure 31. Driver Propagation Delay

Figure 34. Receiver Enable/Disable

Rev. 0 | Page 14 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

SWITCHING CHARACTꢀRISTICS

V

CC

V

/2

V

/2

CC

0V

Z

t_DPLH

t_DPHL

V

CC

1/2V

0.5V

t_ZL

0.5V

CC

O

CC

DE

V

O

0V

t_LZ

2.3V

Y

+V

Y, Z

O

V

+ 0.5V

– 0.5V

OL

90% POINT

V

= V – V

(Y)

DIFF

(Z)

V

OL

V

DIFF

t_ZH

t_HZ

10% POINT

V

OH

–V

O

t_DF

t_DR

OH

t

= │t

DPHL

– t

│

DPLH

SKEW

Figure 37. Driver Enable/Disable Timing

Figure 35. Driver Propagation Delay, Rise/Fall Timing

V

IH

0.5V

t_ZL

0.5V

t_LZ

CC

RE

IL

A – B

0V

1.5V

RxD

V

+ 0.5V

– 0.5V

OL

OUTPUT LOW

OUTPUT HIGH

t_RPLH

t_RPHL

V

OL

V

t_ZH

t_HZ

OH

V

OH

RxD

1.5V

V

1.5V

OH

t_SKEW= |t_RPLH– t_RPHL

|

RxD

0V

OL

Figure 38. Receiver Enable/Disable Timing

Figure 36. Receiver Propagation Delay

Rev. 0 | Page 15 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

CIRCUIT ꢁꢀSCRIPTION

Table 13. Receiving (see Table 11 for Abbreviations)

Inputs Output

SIGNAL ISOLATION

The ADM2682E/ADM2687E signal isolation of 5 kV rms is

implemented on the logic side of the interface. The part achieves

signal isolation by having a digital isolation section and a trans-

ceiver section (see Figure ±). Data applied to the TxD and DE

pins and referenced to logic ground (GND_±) are coupled across

an isolation barrier to appear at the transceiver section referenced

to isolated ground (GND₂). ꢀimilarly, the single-ended receiver

output signal, referenced to isolated ground in the transceiver

section, is coupled across the isolation barrier to appear at the

RxD pin referenced to logic ground.

RE

A − B

RxD

≥ −0.03 V

≤ −0.2 V

−0.2 V < A − B < −0.03 V

Inputs open

X

L or NC

H

L

I

H

Z

THERMAL SHUTDOWN

The ADM2682E/ADM2687E contain thermal shutdown circuitry

that protects the parts from excessive power dissipation during

fault conditions. ꢀhorting the driver outputs to a low impedance

source can result in high driver currents. The thermal sensing

circuitry detects the increase in die temperature under this

condition and disables the driver outputs. This circuitry is

designed to disable the driver outputs when a die temperature

of ±50°C is reached. As the device cools, the drivers are reenabled

at a temperature of ±40°C.

POWER ISOLATION

The ADM2682E/ADM2687E power isolation of 5 kV rms is

implemented using an isoPower integrated isolated dc-to-dc

converter. The dc-to-dc converter section of the ADM2682E/

ADM2687E works on principles that are common to most

modern power supplies. It is a secondary side controller

architecture with isolated pulse-width modulation (PWM)

feedback. V_CCpower is supplied to an oscillating circuit that

switches current into a chip-scale air core transformer. Power

transferred to the secondary side is rectified and regulated to

3.3 V. The secondary (V_IꢀO) side controller regulates the output

by creating a PWM control signal that is sent to the primary

(V_CC) side by a dedicated iCoupler (5 kV rms signal isolated)

data channel. The PWM modulates the oscillator circuit to

control the power being sent to the secondary side. Feedback

allows for significantly higher power and efficiency.

OPEN- AND SHORT-CIRCUIT, FAIL-SAFE RECEIVER

INPUTS

The receiver inputs have open- and short-circuit, fail-safe features

that ensure that the receiver output is high when the inputs are

open or shorted. During line-idle conditions, when no driver on

the bus is enabled, the voltage across a terminating resistance at

the receiver input decays to 0 V. With traditional transceivers,

receiver input thresholds specified between −200 mV and

+200 mV mean that external bias resistors are required on the

A and B pins to ensure that the receiver outputs are in a known

state. The short-circuit, fail-safe receiver input feature eliminates

the need for bias resistors by specifying the receiver input

threshold between −30 mV and −200 mV. The guaranteed negative

threshold means that when the voltage between A and B decays

to 0 V, the receiver output is guaranteed to be high.

TRUTH TABLES

The truth tables in this section use the abbreviations found in

Table ±±.

Table 11. Truth Table Abbreviations

Letter

Description

H

L

High level

Low level

DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY

X

I

Z

Don’t care

The digital signals transmit across the isolation barrier using

iCoupler technology. This technique uses chip-scale transformer

windings to couple the digital signals magnetically from one

side of the barrier to the other. Digital inputs are encoded into

waveforms that are capable of exciting the primary transformer

winding. At the secondary winding, the induced waveforms are

decoded into the binary value that was originally transmitted.

Indeterminate

High impedance (off)

Disconnected

NC

Table 12. Transmitting (see Table 11 for Abbreviations)

Inputs

Outputs

Positive and negative logic transitions at the isolator input cause

narrow (~± ns) pulses to be sent to the decoder via the transformer.

The decoder is bistable and is, therefore, either set or reset by

the pulses, indicating input logic transitions. In the absence of

logic transitions at the input for more than ± μs, periodic sets of

refresh pulses indicative of the correct input state are sent to

ensure dc correctness at the output. If the decoder receives no

internal pulses of more than approximately 5 μs, the input side

DE

H

L

TxD

Y

H

L

Z

L

H

Z

H

L

X

Rev. 0 | Page 16 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

is assumed to be unpowered or nonfunctional, in which case,

the isolator output is forced to a default state by the watchdog

timer circuit.

For example, at a magnetic field frequency of ± MHz, the

maximum allowable magnetic field of 0.2 kgauss induces a

voltage of 0.25 V at the receiving coil. This is about 50% of the

sensing threshold and does not cause a faulty output transition.

ꢀimilarly, if such an event occurs during a transmitted pulse

(and is of the worst-case polarity), it reduces the received pulse

from >±.0 V to 0.75 V, which is still well above the 0.5 V sensing

threshold of the decoder.

This situation should occur in the ADM2682E/ADM2687E devices

only during power-up and power-down operations. The limitation

on the ADM2682E/ADM2687E magnetic field immunity is set

by the condition in which induced voltage in the transformer

receiving coil is sufficiently large to either falsely set or reset the

decoder. The following analysis defines the conditions under

which this can occur.

The preceding magnetic flux density values correspond to

specific current magnitudes at given distances from the

ADM2682E/ADM2687E transformers. Figure 40 expresses

these allowable current magnitudes as a function of frequency

for selected distances. As shown in Figure 40, the ADM2682E/

ADM2687E are extremely immune and can be affected only by

extremely large currents operated at high frequency very close

to the component. For the ± MHz example, a 0.5 kA current must

be placed 5 mm away from the ADM2682E/ADM2687E to affect

The 3.3 V operating condition of the ADM2682E/ADM2687E

is examined because it represents the most susceptible mode of

operation. The pulses at the transformer output have an amplitude

of >±.0 V. The decoder has a sensing threshold of about 0.5 V,

thus establishing a 0.5 V margin in which induced voltages can

be tolerated. The voltage induced across the receiving coil is

given by

component operation.

2

V = (−dβ/dt)Σπr_n; n = ±, 2, … , N

1k

where:

DISTANCE = 1m

β is magnetic flux density (gauss).

N is the number of turns in the receiving coil.

r_nis the radius of the n^thturn in the receiving coil (cm).

100

10

Given the geometry of the receiving coil in the ADM2682E/

ADM2687E and an imposed requirement that the induced

voltage be, at most, 50% of the 0.5 V margin at the decoder, a

maximum allowable magnetic field is calculated as shown in

Figure 39.

DISTANCE = 100mm

1

DISTANCE = 5mm

0.1

100

0.01

1k

10k

100k

1M

10M

100M

10

1

MAGNETIC FIELD FREQUENCY (Hz)

Figure 40. Maximum Allowable Current for Various Current-to-

ADM2682E/ADM2687E Spacings

Note that in combinations of strong magnetic field and high

frequency, any loops formed by PCB traces can induce error

voltages sufficiently large to trigger the thresholds of succeeding

circuitry. Take care in the layout of such traces to avoid this

possibility.

0.1

0.01

0.001

1k

10k

100k

1M

10M

100M

MAGNETIC FIELD FREQUENCY (Hz)

Figure 39. Maximum Allowable External Magnetic Flux Density

Rev. 0 | Page 17 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

APPLICATIONS INFORMATION

In applications involving high common-mode transients, ensure

that board coupling across the isolation barrier is minimized.

Furthermore, design the board layout such that any coupling

that does occur equally affects all pins on a given component

side. Failure to ensure this can cause voltage differentials between

pins exceeding the absolute maximum ratings for the device,

thereby leading to latch-up and/or permanent damage.

PCB LAYOUT

The ADM2682E/ADM2687E isolated Rꢀ-422/Rꢀ-485 transceiver

contains an isoPower integrated dc-to-dc converter, requiring

no external interface circuitry for the logic interfaces. Power

supply bypassing is required at the input and output supply pins

(see Figure 4±). The power supply section of the ADM2682E/

ADM2687E uses an ±80 MHz oscillator frequency to pass power

efficiently through its chip-scale transformers. In addition, the

normal operation of the data section of the iCoupler introduces

switching transients on the power supply pins.

The ADM2682E/ADM2687E dissipate approximately 675 mW

of power when fully loaded. Because it is not possible to apply

a heat sink to an isolation device, the devices primarily depend

on heat dissipation into the PCB through the GND pins. If the

devices are used at high ambient temperatures, provide a thermal

path from the GND pins to the PCB ground plane. The board

layout in Figure 4± shows enlarged pads for Pin ±, Pin 8, Pin 9,

and Pin ±6. Implement multiple vias from the pad to the ground

plane to reduce the temperature inside the chip significantly. The

dimensions of the expanded pads are at the discretion of the

designer and dependent on the available board space.

Bypass capacitors are required for several operating frequencies.

Noise suppression requires a low inductance, high frequency

capacitor, whereas ripple suppression and proper regulation

require a large value capacitor. These capacitors are connected

between Pin ± (GND_±) and Pin 2 (V_CC) and Pin 7 (V_CC) and

Pin 8 (GND_±) for V_CC. The V_IꢀOINand V_IꢀOOUTcapacitors are

connected between Pin 9 (GND₂) and Pin ±0 (V_IꢀOOUT) and

Pin ±5 (V_IꢀOIN) and Pin ±6 (GND₂). To suppress noise and reduce

ripple, a parallel combination of at least two capacitors is required

with the smaller of the two capacitors located closest to the device.

The recommended capacitor values are 0.± μF and ±0 μF for

EMI CONSIDERATIONS

The dc-to-dc converter section of the ADM2682E/ADM2687E

components must, of necessity, operate at very high frequency

to allow efficient power transfer through the small transformers.

This creates high frequency currents that can propagate in circuit

board ground and power planes, causing edge and dipole radiation.

Grounded enclosures are recommended for applications that

use these devices. If grounded enclosures are not possible, good

RF design practices should be followed in the layout of the PCB.

ꢀee the AN-097± Application Note, Recommendations for

Control of Radiated Emissions with isoPower Devices, for more

information.

V_IꢀOOUTat Pin 9 and Pin ±0 and V_CCat Pin 7 and Pin 8. Capacitor

values of 0.0± μF and 0.± μF are recommended for V_IꢀOINat Pin ±5

and Pin ±6 and V_CCat Pin ± and Pin 2. The recommended best

practice is to use a very low inductance ceramic capacitor, or its

equivalent, for the smaller value capacitors. The total lead length

between both ends of the capacitor and the input power supply

pin should not exceed ±0 mm.

10nF

100nF

GND

V

GND

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1

2

V

CC

ISOIN

RxD

A

B

Z

ADM2682E/

ADM2687E

RE

DE

TxD

Y

V

CC

ISOOUT

GND

1

GND

2

10µF

100nF

10µF

100nF

Figure 41. Recommended PCB Layout

Rev. 0 | Page 18 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

INSULATION LIFETIME

All insulation structures eventually break down when subjected to

voltage stress over a sufficiently long period. The rate of insulation

degradation is dependent on the characteristics of the voltage

waveform applied across the insulation. Analog Devices conducts

an extensive set of evaluations to determine the lifetime of the

insulation structure within the ADM2682E/ADM2687E.

waveform that does not conform to Figure 43 or Figure 44 should

be treated as a bipolar ac waveform, and its peak voltage should

be limited to the 50-year lifetime voltage value listed in Table 9.

RATED PEAK VOLTAGE

0V

Figure 42. Bipolar AC Waveform

Accelerated life testing is performed using voltage levels higher

than the rated continuous working voltage. Acceleration factors for

several operating conditions are determined, allowing calculation

of the time to failure at the working voltage of interest. The values

shown in Table 9 summarize the peak voltages for 50 years of

service life in several operating conditions. In many cases, the

working voltage approved by agency testing is higher than the

50-year service life voltage. Operation at working voltages higher

than the service life voltage listed leads to premature insulation

failure.

RATED PEAK VOLTAGE

0V

Figure 43. DC Waveform

RATED PEAK VOLTAGE

0V

NOTES

1. THE VOLTAGE IS SHOWN AS SINUSODIAL FOR ILLUSTRATION

PURPOSES ONLY. IT IS MEANT TO REPRESENT ANY VOLTAGE

WAVEFORM VARYING BETWEEN 0 AND SOME LIMITING VALUE.

THE LIMITING VALUE CAN BE POSITIVE OR NEGATIVE, BUT THE

VOLTAGE CANNOT CROSS 0V.

The insulation lifetime of the ADM2682E/ADM2687E depends

on the voltage waveform type imposed across the isolation barrier.

The iCoupler insulation structure degrades at different rates,

depending on whether the waveform is bipolar ac, unipolar ac,

or dc. Figure 42, Figure 43, and Figure 44 illustrate these different

isolation voltage waveforms.

Figure 44. Unipolar AC Waveform

ISOLATED SUPPLY CONSIDERATIONS

The typical output voltage of the integrated isoPower dc-to-dc

isolated supply is 3.3 V. The isolated supply in the ADM2682E/

ADM2687E is typically capable of supplying a current of 55 mA

when the junction temperature of the device is kept below ±30°C.

This includes the current required by the internal Rꢀ-485 circuitry,

and typically, no additional current is available on V_IꢀOOUTfor

external applications.

Bipolar ac voltage is the most stringent environment. A 50-year

operating lifetime under the bipolar ac condition determines

the Analog Devices recommended maximum working voltage.

In the case of unipolar ac or dc voltage, the stress on the insulation

is significantly lower. This allows operation at higher working

voltages while still achieving a 50-year service life. The working

voltages listed in Table 9 can be applied while maintaining the

50-year minimum lifetime, provided the voltage conforms to either

the unipolar ac or dc voltage cases. Any cross-insulation voltage

Rev. 0 | Page 19 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

TYPICAL APPLICATIONS

An example application of the ADM2682E/ADM2687E for a full-

duplex Rꢀ-485 node is shown in the circuit diagram of Figure 45.

Refer to the PCB Layout section for the recommended placement

of the capacitors shown in this circuit diagram. Placement of

the R_Ttermination resistors depends on the location of the node

and the network configuration. Refer to AN-960 Application Note,

RS-485/RS-422 Circuit Implementation Guide, for guidance on

termination.

Figure 46 and Figure 47 show typical applications of the

ADM2682E/ADM2687E in half duplex and full duplex Rꢀ-485

network configurations. Up to 256 transceivers can be connected to

the Rꢀ-485 bus. To minimize reflections, terminate the line at

the receiving end in its characteristic impedance and keep stub

lengths off the main line as short as possible. For half-duplex

operation, this means that both ends of the line must be terminated

because either end can be the receiving end.

3.3V/5V POWER

SUPPLY

100nF

10µF

100nF

10nF

100nF 10µF

V

CC

ISOOUT

V

CC

isoPower DC-TO-DC CONVERTER

OSCILLATOR

RECTIFIER

V

ISOIN

100nF 10nF

REGULATOR

DIGITAL ISOLATION

ENCODE

i

Coupler

TRANSCEIVER

D

Y

TxD

DE

DECODE

ENCODE

Z

MICROCONTROLLER

AND UART

ENCODE

DECODE

A

B

RxD

R

T

RE

ADM2682E/ADM2687E

GND

2

1

ISOLATION

BARRIER

GND

1

Figure 45. Example Circuit Diagram Using the ADM2682E/ADM2687E

Rev. 0 | Page 20 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

MAXIMUM NUMBER OF TRANSCEIVERS ON BUS = 256

ADM2582E/

ADM2587E

ADM2682E/

ADM2687E

A

B

A

RxD

R

B

RE

DE

R

T

DE

Z

Y

Z

TxD

D

Y

A

B

Z

Y

A

B

Z

Y

R

D

ADM2682E/

ADM2687E

ADM2682E/

ADM2687E

RxD RE DE TxD

NOTES

1. R IS EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE.

T

2. ISOLATION NOT SHOWN.

Figure 46. ADM2682E/ADM2687E Typical Half Duplex RS-485 Network

MAXIMUM NUMBER OF NODES = 256

MASTER

R

SLAVE

A

B

Z

Y

Z

RxD

RE

D

TxD

DE

R

T

B

A

DE

RE

R

T

TxD

D

R

RxD

Y

ADM2682E/

ADM2687E

ADM2682E/

ADM2687E

A

B

Z

Y

A

B

Z

Y

SLAVE

R

D

ADM2682E/

ADM2687E

ADM2682E/

ADM2687E

RxD RE DE TxD

NOTES

1. R IS EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE.

T

2. ISOLATION NOT SHOWN.

Figure 47. ADM2682E/ADM2687E Typical Full Duplex RS-485 Network

Rev. 0 | Page 21 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

OUTLINꢀ ꢁIMꢀNSIONS

13.00 (0.5118)

12.60 (0.4961)

16

1

9

8

7.60 (0.2992)

7.40 (0.2913)

10.65 (0.4193)

10.00 (0.3937)

0.75 (0.0295)

0.25 (0.0098)

45°

2.65 (0.1043)

2.35 (0.0925)

0.30 (0.0118)

0.10 (0.0039)

8°

0°

COPLANARITY

0.10

SEATING

PLANE

1.27

(0.0500)

BSC

0.33 (0.0130)

0.20 (0.0079)

1.27 (0.0500)

0.40 (0.0157)

0.51 (0.0201)

0.31 (0.0122)

COMPLIANT TO JEDEC STANDARDS MS-013-AC

CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS

(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR

REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.

Figure 48. 16-Lead Standard Small Outline Package with Increased Creepage [SOIC_IC]

Wide Body,

(RI-16-1)

Dimensions shown in millimeters and (inches)

ORDERING GUIDE

Model¹

ADM2682EBRIZ

ADM2682EBRIZ-RL7

ADM2687EBRIZ

ADM2687EBRIZ-RL7

EVAL-ADM2682EEBZ

EVAL-ADM2687EEBZ

Data Rate (Mbps)

Temperature Range

−40°C to +85°C

Package Description

16-Lead SOIC_IC

Package Option

RI-16-1

16

0.5

16-Lead SOIC_IC

RI-16-1

ADM2682E Evaluation Board

ADM2687E Evaluation Board

¹Z = RoHS Compliant Part.

Rev. 0 | Page 22 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

NOTꢀS

Rev. 0 | Page 23 of 24

AꢁM2682ꢀ/AꢁM2687ꢀ

NOTꢀS

registered trademarks are the property of their respective owners.

D09927-0-7/11(0)

Rev. 0 | Page 24 of 24


型号：	EVAL-ADM2687EEBZ
厂家：	ADI
描述：	5 kV rms Signal and Power Isolated 5 kV的均方根信号和电源隔离
文件：	总24页 (文件大小：464K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

EVAL-ADM2687EEBZ [ADI]

相关型号：

EVAL-ADM2914EBZ

EVAL-ADM3051EBZ

EVAL-ADM3052EBZ

EVAL-ADM3053EBZ

EVAL-ADM3054EBZ

EVAL-ADM3061EEB1Z

EVAL-ADM3061EEBZ

EVAL-ADM3062EEB1Z

EVAL-ADM3062EEBZ

EVAL-ADM3063EEBZ

EVAL-ADM3065EEB1Z

EVAL-ADM3065EEBZ