LTC6101CCS5_技术文档

LTC6101/LTC6101HV

High Voltage,

High-Side Current Sense

Amplifier in SOT-23

U

FEATURES

DESCRIPTIO

TheLTC^®6101/LTC6101HVareversatile, highvoltage, high

side current sense amplifiers. Design flexibility is provided

by the excellent device characteristics; 300µV Max offset

and only 375µA (typical at 60V) of current consumption.

The LTC6101 operates on supplies from 4V to 60V and

LTC6101HV operates on supplies from 5V to 100V.

■

Supply Range:

5V to 100V, 105V Absolute Maximum (LTC6101HV)

4V to 60V, 70V Absolute Maximum (LTC6101)

Low Offset Voltage: 300µV Max

Fast Response: 1µs Response Time (0V to 2.5V on

a 5V Output Step)

■

Gain Configurable with 2 Resistors

Low Input Bias Current: 170nA Max

PSRR: 110dB Min

The LTC6101 monitors current via the voltage across an

external sense resistor (shunt resistor). Internal circuitry

convertsinputvoltagetooutputcurrent,allowingforasmall

sense signal on a high common mode voltage to be trans-

lated into a ground referenced signal. Low DC offset allows

the use of a small shunt resistor and large gain-setting

resistors. As a result, power loss in the shunt is reduced.

4V to 60V (LTC6101)

5V to 100V (LTC6101HV)

■

Output Current: 1mA Max

Low Supply Current: 250µA, V_S= 14V

Low Profile (1mm) SOT-23 (ThinSOT^TM) Package

The wide operating supply range and high accuracy make

the LTC6101 ideal for a large array of applications from

automotive to industrial and power management. A maxi-

mum input sense voltage of 500mV allows a wide range of

currents to be monitored. The fast response makes the

LTC6101 the perfect choice for load current warnings and

shutoff protection control. With very low supply current,

the LTC6101 is suitable for power sensitive applications.

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APPLICATIO S

■

Current Shunt Measurement

Battery Monitoring

■

Remote Sensing

■

Power Management

, LTC and LT are registered trademarks of Linear Technology Corporation.

ThinSOT is a trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

The LTC6101 is available in 5-lead SOT-23 and 8-lead

MSOP packages.

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TYPICAL APPLICATIO

16-Bit Resolution Unidirectional Output into LTC2433 ADC

Step Response

I

V

LOAD

SENSE

+

–

V

SENSE

R

IN

100Ω

5V TO 105V

∆V

SENSE

^–= 100mV

4

2

3

5

5.5V

5V

L

O

A

D

+

–

T

= 25°C

1µF

5V

A

V

⁺= 12V

R

V

= 100

= 5k

SENSE

IN

OUT

V

OUT

⁺= V⁺

V

OUT

1

LTC6101HV

I

= 100µA

OUT

LTC2433-1

TO µP

R

OUT

4.99k

0.5V

0V

I

= 0

OUT

500ns/DIV

6101 TA01

6101 TA01b

R

OUT

V

OUT

=

• V

SENSE

= 49.9V

SENSE

IN

6101fa

1

LTC6101/LTC6101HV

W W U W

ABSOLUTE AXI U RATI GS

(Note 1)

Total Supply Voltage (V⁺to V^–)

LTC6101I/LTC6101HVI ...................... –40°C to 85°C

LTC6101H/LTC6101HVH ................. –40°C to 125°C

Specified Temperature Range (Note 2)

LTC6101C/LTC6101HVC ......................... 0°C to 70°C

LTC6101I/LTC6101HVI ...................... –40°C to 85°C

LTC6101H/LTC6101HVH ................. –40°C to 125°C

Storage Temperature Range ................ –65°C to 150°C

Lead Temperature (Soldering, 10 sec)................. 300°C

LTC6101............................................................. 70V

LTC6101HV ...................................................... 105V

Minimum Input Voltage (–IN Pin) ................... (V⁺– 4V)

Maximum Output Voltage (Out Pin)........................... 9V

Input Current ..................................................... ±10mA

Output Short-Circuit Duration (to V^–) ............. Indefinite

Operating Temperature Range

LTC6101C/LTC6101HVC .................... –40°C to 85°C

U

W

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PACKAGE/ORDER I FOR ATIO

TOP VIEW

+

TOP VIEW

–IN

NC

1

2

3

4

8 +IN

7 V

OUT 1

–

5 V

+

V

2

6 NC

–

–IN 3

4 +IN

5 V

OUT

MS8 PACKAGE

8-LEAD PLASTIC MSOP

T_JMAX= 150°C, θ_JA= 300°C/ W

S5 PACKAGE

5-LEAD PLASTIC TSOT-23

T_JMAX= 150°C, θ_JA= 250°C/ W

ORDER PART NUMBER

MS8 PART MARKING*

ORDER PART NUMBER

S5 PART MARKING*

LTC6101ACMS8

LTC6101AIMS8

LTC6101AHMS8

LTC6101HVACMS8

LTC6101HVAIMS8

LTC6101HVAHMS8

LTBSB

LTBSX

LTC6101BCS5

LTC6101CCS5

LTC6101BIS5

LTBND

LTBSZ

LTC6101CIS5

LTC6101BHS5

LTC6101CHS5

LTC6101HVBCS5

LTC6101HVCCS5

LTC6101HVBIS5

LTC6101HVCIS5

LTC6101HVBHS5

LTC6101HVCHS5

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marketing: http://www.linear.com/leadfree/

Consult LTC Marketing for parts specified with wider operating temperature ranges.

*The temperature grades and parametric grades are identified by a label on the shipping container.

6101fa

2

LTC6101/LTC6101HV

ELECTRICAL CHARACTERISTICS

(LTC6101) The

●

denotes the specifications which apply over the full

+

operating temperature range, otherwise specifications are at T = 25°C, R = 100Ω, R

= 10k, V

= V (see Figure 1 for

SENSE

A

IN

OUT

details), 4V ≤ V ≤ 60V unless otherwise noted.

S

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

V

Supply Voltage Range

Input Offset Voltage

●

4

60

V

S

V

= 5mV, Gain = 100, LTC6101A

= 5mV, Gain = 100, LTC6101AC, LTC6101AI

= 5mV, Gain = 100, LTC6101AH

±85

±300

±450

±535

µV

OS

SENSE

●

V

= 5mV, Gain = 100, LTC6101B

= 5mV, Gain = 100, LTC6101C

±150

±400

±450

±810

µV

SENSE

●

V

±1500

±2500

µV

SENSE

●

∆V /∆T

Input Offset Voltage Drift

Input Bias Current

V

= 5mV, LTC6101A

= 5mV, LTC6101B

= 5mV, LTC6101C

●

±1

±3

µV/°C

OS

SENSE

±10

I

R

= 1M

100

170

245

nA

B

IN

●

Input Offset Current

R

= 1M

±2

±15

nA

OS

IN

V

Input Sense Voltage Full Scale

Power Supply Rejection Ratio

V

within Specification, R = 1k

500

mV

SENSE(MAX)

OS

IN

PSRR

V = 6V to 60V, V

= 5mV, Gain = 100

= 88mV

118

115

140

133

dB

S

SENSE

●

V = 4V to 60V, V

110

105

dB

S

SENSE

V

Maximum Output Voltage

Minimum Output Voltage

12V ≤ V ≤ 60V, V

V = 6V, V

V = 4V, V

●

8

3

1

V

OUT

S

SENSE

= 330mV, R = 1k, R

= 10k

= 2k

S

SENSE

IN

OUT

= 550mV, R = 1k, R

S

SENSE

IN

V

= 0V, Gain = 100, LTC6101A

= 0V, Gain = 100, LTC6101AC, LTC6101AI

= 0V, Gain = 100, LTC6101AH

0

30

45

53.5

mV

OUT (0)

SENSE

●

V

= 0V, Gain = 100, LTC6101B

= 0V, Gain = 100, LTC6101C

0

45

81

mV

SENSE

●

V

150

250

mV

SENSE

I

t

Maximum Output Current

6V ≤ V ≤ 60V, R

= 2k, V = 110mV, Gain = 20

SENSE

●

1

0.5

mA

OUT

r

S

OUT

V = 4V, V

= 550mV, Gain = 2, R = 2k

S

SENSE

OUT

Input Step Response

(to 2.5V on a 5V Output Step)

∆V

S

= 100mV Transient, 6V ≤ V ≤ 60V, Gain = 50

1

1.5

µs

SENSE

V = 4V

S

BW

Signal Bandwidth

Supply Current

I

= 200µA, R = 100, R = 5k

OUT

140

200

kHz

OUT

IN

= 1mA, R = 100, R

= 5k

IN

OUT

I

V = 4V, I

= 0, R = 1M

220

240

250

375

450

475

µA

S

OUT

IN

●

V = 6V, I

= 0, R = 1M

475

525

µA

S

OUT

IN

V = 12V, I

= 0, R = 1M

500

590

µA

S

OUT

IN

V = 60V, I

LTC6101I, LTC6101C

LTC6101H

= 0, R = 1M

640

690

720

µA

S

OUT

IN

●

6101fa

3

LTC6101/LTC6101HV

ELECTRICAL CHARACTERISTICS

(LTC6101HV) The

●

denotes the specifications which apply over the full

+

operating temperature range, otherwise specifications are at T = 25°C, R = 100Ω, R

= 10k, V

= V (see Figure 1 for

SENSE

A

IN

OUT

details), 5V ≤ V ≤ 100V unless otherwise noted.

S

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

V

Supply Voltage Range

Input Offset Voltage

●

5

100

V

S

V

SENSE

V

SENSE

V

SENSE

= 5mV, Gain = 100, LTC6101HVA

= 5mV, Gain = 100, LTC6101HVAC, LTC6101HVAI

= 5mV, Gain = 100, LTC6101HVAH

±85

±300

±450

±535

µV

OS

●

V

= 5mV, Gain = 100, LTC6101HVB

±150

±400

±450

±810

µV

SENSE

●

V

= 5mV, Gain = 100, LTC6101HVC

±1500

±2500

µV

SENSE

●

∆V /∆T

Input Offset Voltage Drift

Input Bias Current

V

= 5mV, LTC6101HVA

= 5mV, LTC6101HVB

= 5mV, LTC6101HVC

●

±1

±3

µV/°C

OS

SENSE

±10

I

R

= 1M

100

170

245

nA

B

IN

●

Input Offset Current

R

= 1M

±2

±15

nA

OS

IN

V

Input Sense Voltage Full Scale

Power Supply Rejection Ratio

V

within Specification, R = 1k

500

mV

SENSE(MAX)

OS

IN

PSRR

V = 6V to 100V, V

= 5mV, Gain = 100

= 88mV

118

115

140

133

dB

S

SENSE

●

V = 5V to 100V, V

110

105

dB

S

SENSE

●

V

Maximum Output Voltage

Minimum Output Voltage

12V ≤ V ≤ 100V, V

5V, V

●

8

3

V

OUT

S

SENSE

= 330mV, R = 1k, R

= 10k

SENSE

IN

OUT

V

= 0V, Gain = 100, LTC6101HVA

= 0V, Gain = 100, LTC6101HVAC, LTC6101HVAI

= 0V, Gain = 100, LTC6101HVAH

0

30

45

53.5

mV

OUT (0)

SENSE

●

V

= 0V, Gain = 100, LTC6101HVB

0

45

81

mV

SENSE

●

V

= 0V, Gain = 100, LTC6101HVC

150

250

mV

SENSE

●

I

t

Maximum Output Current

5V ≤ V ≤ 100V, R

= 2k, V = 110mV, Gain = 20

SENSE

1

mA

OUT

r

S

OUT

Input Step Response

(to 2.5V on a 5V Output Step)

∆V

S

= 100mV Transient, 6V ≤ V ≤ 100V, Gain = 50

1

1.5

µs

SENSE

V = 5V

S

BW

Signal Bandwidth

Supply Current

I

= 200µA, R = 100, R = 5k

OUT

140

200

kHz

OUT

IN

= 1mA, R = 100, R

= 5k

IN

OUT

I

V = 5V, I

= 0, R = 1M

200

220

230

350

450

475

µA

S

OUT

IN

●

V = 6V, I

= 0, R = 1M

475

525

µA

S

OUT

IN

V = 12V, I

= 0, R = 1M

500

590

µA

S

OUT

IN

V = 60V, I

LTC6101HVI, LTC6101HVC

LTC6101HVH

= 0, R = 1M

640

690

720

µA

S

OUT

IN

●

V = 100V, I

LTC6101HVI, LTC6101HVC

LTC6101HVH

= 0, R = 1M

350

640

690

720

µA

S

OUT

IN

●

6101fa

4

LTC6101/LTC6101HV

ELECTRICAL CHARACTERISTICS

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: The LTC6101C/LTC6101HVC are guaranteed to meet specified

performance from 0°C to 70°C. The LTC6101C/LTC6101HVC are designed,

characterized and expected to meet specified performance from –40°C to

85°C but are not tested or QA sampled at these temperatures. LTC6101I/

LTC6101HVI are guaranteed to meet specified performance from –40°C to

85°C. The LTC6101H/LTC6101HVH are guaranteed to meet specified

performance from –40°C to 125°C.

U W

TYPICAL PERFOR A CE CHARACTERISTICS

Input V vs Temperature

Input V vs Supply Voltage

Input Sense Range

OS

40

20

800

600

2.5

2

REPRESENTATIVE

T

= 25°C

T

= 0°C

T

= –40°C

A

UNITS

T

A

= 0°C

0

400

T

= 70°C

T

= –40°C

= 45°C

–20

–40

–60

–80

–100

–120

–140

A

200

1.5

1

0

A

= 125°C

–200

–400

–600

–800

–1000

T

= 85°C

A

T

= 85°C

A

R

V

= 100

= 5k

IN

OUT

IN

0.5

0

R

V

= 100

= 5k

A GRADE

B GRADE

C GRADE

IN

OUT

IN

R

= 3k

OUT

= 5mV

IN

LTC6101

LTC6101HV

= 125°C

A

= 3k

= 5mV

4

11 18 25 32 39 46 53 60

(V)

–40 –20

0

20 40 60 80 100 120

4 10 20 30 40 50 60 70 80 90 100

V

(V)

SUPPLY

TEMPERATURE (°C)

SUPPLY

6101 G02

6101 G05

6101 G01

LTC6101: V

Maximum vs

LTC6101HV: V

Temperature

Maximum vs

LTC6101: I

Maximum vs

OUT

Temperature

12

10

8

12

10

8

7

6

5

4

3

2

1

0

V

S

= 60V

V

S

= 100V

S

V

= 12V

S

V

= 12V

V

= 12V

V

= 60V

S

V

= 6V

= 5V

= 4V

S

6

V

= 6V

= 4V

S

V

= 6V

= 4V

S

4

S

2

0

–40 –20

0

20 40 60 80 100 120

TEMPERATURE (°C)

6101 G06

–40 –20

0

20 40 60 80 100 120

TEMPERATURE (°C)

6101 G20

–40 –20

0

20 40 60 80 100 120

TEMPERATURE (°C)

6101 G07

6101fa

5

LTC6101/LTC6101HV

U W

TYPICAL PERFOR A CE CHARACTERISTICS

LTC6101HV: I

Temperature

Maximum vs

Output Error Due to Input Offset vs

Input Voltage

OUT

Gain vs Frequency

100

10

1

7

6

5

4

3

2

1

0

40

35

30

25

20

15

10

5

T

= 25°C

A

GAIN =10

I

= 1mA

OUT

V

S

= 12V

S

T

R

= 25°C

A

= 100

IN

= 4.99k

OUT

V

= 100V

V

= 6V

= 5V

I

= 200µA

S

OUT

C GRADE

0.1

B GRADE

A GRADE

0

V

= 4V

S

–5

–10

0.01

–40 –20

0

20 40 60 80 100 120

TEMPERATURE (°C)

6101 G21

1k

10k

100k

1M

0

0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5

FREQUENCY (Hz)

INPUT VOLTAGE (V)

6101 G09

6101 G08

Input Bias Current vs

Temperature

LTC6101: Supply Current vs

Supply Voltage

LTC6101HV: Supply Current vs

Supply Voltage

160

140

120

100

80

600

500

400

300

200

100

0

450

400

350

300

250

200

150

100

50

70°C

85°C

125°C

70°C

85°C

V

= 6V TO 100V

S

125°C

V

= 4V

S

25°C

0°C

25°C

60

–40°C

0°C

40

–40°C

V

= 0

= 1M

V

= 0

IN

20

R

= 1M

0

–40 –20

0

20 40 60 80 100 120

TEMPERATURE (°C)

0

10 20 30 40 50 60 70 80 90 100

0

4

8 12 16 20 24 28 32 36 40 44 48 52 56 60

SUPPLY VOLTAGE (V)

6101 G10

6101 G22

6101 G11

Step Response 0mV to 10mV

Step Response 10mV to 20mV

–

V⁺-10mV

SENSE

V

SENSE

V⁺

V⁺-10mV

V⁺-20mV

0.5V

1V

T

= 25°C

A

T

= 25°C

V⁺= 12V

A

V⁺= 12V

R

V

= 100

IN

R

V

= 100

IN

= 5k

OUT

= 5k

⁺= V⁺

OUT

SENSE

⁺= V⁺

SENSE

0V

0.5V

V

OUT

V

OUT

TIME (10µs/DIV)

6101 G12

6101 G13

6101fa

6

LTC6101/LTC6101HV

U W

TYPICAL PERFOR A CE CHARACTERISTICS

Step Response Rising Edge

Step Response 100mV

–

V

SENSE

V

SENSE

V⁺

∆V

^–=100mV

V⁺-100mV

T

= 25°C

SENSE

A

V⁺= 12V

= 2200pF

C

= 10pF

LOAD

C

5V

LOAD

5.5V

5V

T

= 25°C

A

R

V

= 100

V⁺= 12V

IN

= 5k

OUT

R

V

= 100

⁺= V⁺

IN

T

= 25°C

A

SENSE

V⁺= 12V

= 5k

OUT

⁺= V⁺

C

= 1000pF

LOAD

SENSE

R

V

= 100

= 5k

SENSE

IN

OUT

V

OUT

⁺= V⁺

I

= 100µA

OUT

0V

0.5V

0V

I

= 0

V

OUT

TIME (10µs/DIV)

TIME (100µs/DIV)

TIME (500ns/DIV)

6101 G14

6101 G15

6101 G16

Step Response Falling Edge

PSRR vs Frequency

160

LTC6101,

+

∆V

^–=100mV

140

120

100

80

SENSE

V

= 4V

V

OUT

5.5V

5V

T

= 25°C

A

V⁺= 12V

LTC6101,

LTC6101HV,

R

V

= 100

IN

+

V

= 12V

= 5k

OUT

⁺= V⁺

SENSE

60

R

= 100

IN

= 10k

= 5pF

OUT

40

I

= 100µ

OUT

C

GAIN = 100

LTC6101HV,

+

20

I

= 100µA

= 50mVp

V = 5V

OUTDC

INAC

0.5V

0V

I

= 0

OUT

V

0

0.1

1

10 100 1k

10k 100k 1M

TIME (500ns/DIV)

FREQUENCY (Hz)

6101 G19

6101 G17

6101fa

7

LTC6101/LTC6101HV

U

PI FU CTIO S

OUT (Pin 1): Current Output. OUT (Pin 1) will source a

current that is proportional to the sense voltage into an

external resistor.

V^–(Pin 2): Negative Supply (or Ground for Single-Supply

Operation).

IN^–(Pin 3): The internal sense amplifier will drive IN^–(Pin

3) to the same potential as IN⁺(Pin 4). A resistor (R_IN) tied

from V⁺to IN^–sets the output current I_OUT= V_SENSE/R_IN.

V_SENSEisthevoltagedevelopedacrosstheexternalR_SENSE

(Figure 1).

IN⁺(Pin 4): Must be tied to the system load end of the

sense resistor, either directly or through a resistor.

V⁺(Pin 5): Positive Supply Pin. Supply current is drawn

through this pin. The circuit may be configured so that

the LTC6101 supply current is or is not monitored along

with the system load current. To monitor only system

load current, connect V⁺to the more positive side of the

sense resistor. To monitor the total current, including the

LTC6101 current, connect V⁺to the more negative side of

the sense resistor.

W

BLOCK DIAGRA

I

LOAD

V

SENSE

+

–

R

V

BATTERY

SENSE

R

IN

5

+

10V

V

L

O

A

D

–

+

5k

–

+

IN

3

4

I

10V

OUT

R

OUT

V

OUT

= V x

SENSE

1

–

IN

V

LTC6101/LTC6101HV

R

OUT

2

6101 BD

Figure 1. LTC6101/LTC6101HV Block Diagram and Typical Connection

W U U

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APPLICATIO S I FOR ATIO

The LTC6101 high side current sense amplifier (Figure 1)

provides accurate monitoring of current through a user-

selected sense resistor. The sense voltage is amplified by

a user-selected gain and level shifted from the positive

power supply to a ground-referred output. The output

signal is analog and may be used as is or processed with

an output filter.

R_IN, between IN^–and V⁺forces a potential across R_INthat

is the same as the sense voltage across R_SENSE. A corre-

sponding current, V_SENSE/R_IN, will flow through R_IN. The

high impedance inputs of the sense amplifier will not

conduct this input current, so it will flow through an

internal MOSFET to the output pin.

The output current can be transformed into a voltage by

adding a resistor from OUT to V^–. The output voltage is

Theory of Operation

then V_O= V^–+ I_OUT• R_OUT

.

An internal sense amplifier loop forces IN^–to have the

same potential as IN⁺. Connecting an external resistor,

6101fa

8

LTC6101/LTC6101HV

W U U

APPLICATIO S I FOR ATIO

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Useful Gain Configurations

Peak dissipation is 200mW. If a 5mΩ sense resistor is

employed, then the effective current error is 30mA, while

the peak sense voltage is reduced to 10mV at 2A, dissipat-

ing only 20mW.

Gain

20

R

V

at V

= 5V

I

at V

= 5V

IN

OUT

SENSE

OUT

499

200

100

10k

250mV

100mV

50mV

500µA

50

The low offset and corresponding large dynamic range of

the LTC6101 make it more flexible than other solutions in

this respect. The 150µV typical offset gives 60dB of

dynamicrangeforasensevoltagethatislimitedto150mV

max, and over 70dB of dynamic range if the rated input

maximum of 500mV is allowed.

100

Selection of External Current Sense Resistor

The external sense resistor, R_SENSE, has a significant

effect on the function of a current sensing system and

must be chosen with care.

Sense Resistor Connection

First, the power dissipation in the resistor should be

considered. The system load current will cause both heat

and voltage loss in R_SENSE. As a result, the sense resistor

should be as small as possible while still providing the

input dynamic range required by the measurement. Note

that input dynamic range is the difference between the

maximuminputsignalandtheminimumaccuratelyrepro-

duced signal, and is limited primarily by input DC offset of

the internal amplifier of the LTC6101. In addition, R_SENSE

must be small enough that V_SENSEdoes not exceed the

maximum input voltage specified by the LTC6101, even

under peak load conditions. As an example, an application

may require that the maximum sense voltage be 100mV.

If this application is expected to draw 2A at peak load,

R_SENSEshould be no more than 50mΩ.

Kelvin connection of the IN^–and IN⁺inputs to the sense

resistor should be used in all but the lowest power appli-

cations. Solder connections and PC board interconnec-

tions that carry high current can cause significant error in

measurementduetotheirrelativelylargeresistances. One

10mm x 10mm square trace of one-ounce copper is

approximately 0.5mΩ. A 1mV error can be caused by as

little as 2A flowing through this small interconnect. This

willcausea1%errorina100mVsignal.A10Aloadcurrent

inthesameinterconnectwillcausea5%errorforthesame

100mVsignal. Byisolatingthesensetracesfromthehigh-

current paths, this error can be reduced by orders of

magnitude. A sense resistor with integrated Kelvin sense

terminals will give the best results. Figure 2 illustrates the

recommended method.

Once the maximum R_SENSEvalue is determined, the mini-

mum sense resistor value will be set by the resolution or

dynamic range required. The minimum signal that can be

accurately represented by this sense amp is limited by the

input offset. As an example, the LTC6101B has a typical

input offset of 150µV. If the minimum current is 20mA, a

sense resistor of 7.5mΩ will set V_SENSEto 150µV. This is

the same value as the input offset. A larger sense resistor

will reduce the error due to offset by increasing the sense

voltage for a given load current.

+

V

R

IN

R

SENSE

4

2

3

5

–

+

LOAD

Choosing a 50mΩ R_SENSEwill maximize the dynamic

range and provide a system that has 100mV across the

sense resistor at peak load (2A), while input offset causes

an error equivalent to only 3mA of load current.

1

V

OUT

LTC6101

R

OUT

6101 F02

Figure 2. Kelvin Input Connection Preserves

Accuracy Despite Large Load Current

6101fa

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LTC6101/LTC6101HV

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APPLICATIO S I FOR ATIO

Selection of External Input Resistor, R_IN

currentmeasurementaccuracybylimitingtheresult,while

increasing the low current measurement resolution.

The external input resistor, R_IN, controls the transcon-

ductance of the current sense circuit. Since I_OUT= V_SENSE

/

+

V

R_IN, transconductance g_m= 1/R_IN. For example, if R_IN=

100, then I_OUT= V_SENSE/100 or I_OUT= 1mA for V_SENSE

100mV.

=

R

D

SENSE

6101 F03a

R_INshouldbechosentoallowtherequiredresolutionwhile

limitingtheoutputcurrent.Atlowsupplyvoltage,I_OUTmay

be as much as 1mA. By setting R_INsuch that the largest

expected sense voltage gives I_OUT= 1mA, then the maxi-

mum output dynamic range is available. Output dynamic

range is limited by both the maximum allowed output

current and the maximum allowed output voltage, as well

as the minimum practical output signal. If less dynamic

range is required, then R_INcan be increased accordingly,

reducing the max output current and power dissipation.

If low sense currents must be resolved accurately in a

systemthathasverywidedynamicrange,asmallerR_INthan

the max current spec allows may be used if the max

current is limited in another way, such as with a Schottky

diode across R_SENSE(Figure 3a). This will reduce the high

LOAD

Figure 3a. Shunt Diode Limits Maximum Input Voltage to Allow

Better Low Input Resolution Without Overranging

This approach can be helpful in cases where occasional

large burst currents may be ignored. It can also be used in

a multirange configuration where a low current circuit is

added to a high current circuit (Figure 3b). Note that a

comparator (LTC1540) is used to select the range, and

transistor M1 limits the voltage across R_{SENSE LO}

.

Care should be taken when designing the board layout for

R_IN,especially for small R_INvalues. All trace and intercon-

nect impedances will increase the effective R_INvalue,

causingagainerror. Inaddition, internaldeviceresistance

will add approximately 0.2Ω to R_IN.

V

LOGIC

CMPZ4697

10k

(3.3V TO 5V)

7

3

4

M1

+

–

Si4465

V

IN

R

SENSE HI

10m

I

LOAD

8

Q1

CMPT5551

5

6

V

OUT

40.2k

R

SENSE LO

100m

301

4.7k

1.74M

LTC1540

4

2

3

5

4

3

5

2

1

HIGH

RANGE

INDICATOR

(I > 1.2A)

+

–

2

V

IN

619k

LOAD

1

HIGH CURRENT RANGE OUT

250mV/A

LTC6101

7.5k

V

LOGIC

BAT54C

LOW CURRENT RANGE OUT

2.5V/A

R

5

(

V

+5V

)

≤ V ≤ 60V

LOGIC

IN

7.5k

6101 F03b

0 ≤ I

≤ 10A

LOAD

Figure 3b. Dual LTC6101s Allow High-Low Current Ranging

6101fa

10

LTC6101/LTC6101HV

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APPLICATIO S I FOR ATIO

U

Output Error, E_OUT, Due to the Amplifier DC Offset

Voltage, V_OS

Selection of External Output Resistor, R_OUT

The output resistor, R_OUT, determines how the output

currentisconvertedtovoltage. V_OUTissimplyI_OUT•R_OUT

E_OUT(VOS)= V_OS• (R_OUT/R_IN)

.

The DC offset voltage of the amplifier adds directly to the

value of the sense voltage, V_SENSE. This is the dominant

error of the system and it limits the available dynamic

range.Theparagraph“SelectionofExternalCurrentSense

Resistor” provides details.

In choosing an output resistor, the max output voltage

must first be considered. If the circuit that is driven by the

output does not limit the output voltage, then R_OUTmust

be chosen such that the max output voltage does not

exceed the LTC6101 max output voltage rating. If the

followingcircuitisabufferorADCwithlimitedinputrange,

then R_OUTmust be chosen so that I_OUT(MAX)• R_OUTis less

than the allowed maximum input range of this circuit.

Output Error, E_OUT, Due to the Bias Currents,

I_B(+) and I_B(–)

The bias current I_B(+) flows into the positive input of the

internal op amp. I_B(–) flows into the negative input.

In addition, the output impedance is determined by R_OUT

.

If the circuit to be driven has high enough input imped-

ance, then almost any useful output impedance will be

acceptable. However, ifthedrivencircuithasrelativelylow

input impedance, or draws spikes of current, such as an

ADC might do, then a lower R_OUTvalue may be required in

order to preserve the accuracy of the output. As an

example, if the input impedance of the driven circuit is 100

times R_OUT, then the accuracy of V_OUTwill be reduced by

1% since:

E_OUT(IBIAS)= R_OUT((I_B(+) • (R_SENSE/R_IN) – I_B(–))

Since I_B(+) ≈ I_B(–) = I_BIAS, if R_SENSE<< R_INthen,

E_OUT(IBIAS)≈ –R_OUT• I_BIAS

For instance if I_BIASis 100nA and R_OUTis 1kΩ, the output

error is 0.1mV.

Note that in applications where R_SENSE≈ R_IN, I_B(+) causes

a voltage offset in R_SENSEthat cancels the error due to

R_OUT•R

R_OUT+ R

IN(DRIVEN)

I_B(–) and E_OUT(IBIAS)≈ 0. In applications where R_SENSE

<

V_OUT= I_OUT

•

R_IN, the bias current error can be similarly reduced if an

external resistor R_IN(+) = (R_IN– R_SENSE) is connected as

shown in Figure 4 below. Under both conditions:

IN(DRIVEN)

100

101

= I_OUT•R_OUT

•

= 0.99•I_OUT•R_OUT

E_OUT(IBIAS)= ± R_OUT• I_OS; I_OS= I_B(+) – I_B(–)

Error Sources

+

V

The current sense system uses an amplifier and resistors

to apply gain and level shift the result. The output is then

dependent on the characteristics of the amplifier, such as

gain and input offset, as well as resistor matching.

–

R

IN

R

SENSE

+

R

IN

4

2

3

5

–

+

Ideally, the circuit output is:

LOAD

R

V_OUT= V_SENSE

•

^OUT;V_SENSE= R_SENSE•I_SENSE

IN

In this case, the only error is due to resistor mismatch,

which provides an error in gain only. However, offset

voltage, bias current and finite gain in the amplifier cause

additional errors:

1

V

OUT

LTC6101

R

OUT

6101 F04

+

–

R

=

R

– R

IN

IN SENSE

Figure 4. Second Input R Minimizes

Error Due to Input Bias Current

6101fa

11

LTC6101/LTC6101HV

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APPLICATIO S I FOR ATIO

If the offset current, I_OS, of the LTC6101 amplifier is 2nA,

the 100 microvolt error above is reduced to 2 microvolts.

AddingR_IN⁺asdescribedwillmaximizethedynamicrange

of the circuit. For less sensitive designs, R_INis not

necessary.

P_Q= I_DD• V⁺

The total power dissipated is the output dissipation plus

the quiescent dissipation:

+

P_TOTAL= P_OUT+ P_Q

At maximum supply and maximum output current, the

total power dissipation can exceed 100mW. This will

cause significant heating of the LTC6101 die. In order to

prevent damage to the LTC6101, the maximum expected

dissipation in each application should be calculated. This

number can be multiplied by the θ_JAvalue listed in the

package section on page 2 to find the maximum expected

die temperature. This must not be allowed to exceed

150°C, or performance may be degraded.

Example:

If an I_SENSErange = (1A to 1mA) and (V_{OUT SENSE}

3V/1A

/I

) =

Then, from the Electrical Characteristics of the LTC6101,

R_SENSE≈ V_SENSE(max) / I_SENSE(max) = 500mV/1A =

500mΩ

Gain = R_OUT/R_IN= V_OUT(max) / V_SENSE(max) = 3V/500mV

= 6

Asanexample,ifanLTC6101intheS5packageistoberun

at 55V ±5V supply with 1mA output current at 80°C:

If the maximum output current, I_OUT, is limited to 1mA,

R_OUTequals 3V/1mA≈3.01kΩ(1%value)andR_IN=3kΩ/

6 ≈ 499Ω (1% value).

P_Q(MAX)= I_DD(MAX)• V⁺_(MAX)= 41.4mW

P_OUT(MAX)= I_OUT• V⁺_(MAX)= 60mW

T_RISE= θ_JA• P_TOTAL(MAX)

The output error due to DC offset is ±900µVolts (typ) and

the error due to offset current, I_OSis 3k x 2nA = ±6µVolts

(typical), provided R_IN⁺= R_IN

.

–

T_MAX= T_AMBIENT+ T_RISE

Themaximumoutputerrorcanthereforereach±906µVolts

or 0.03% (–70dB) of the output full scale. Considering the

system input 60dB dynamic range (I_SENSE= 1mA to 1A),

the70dBperformanceoftheLTC6101makesthisapplica-

tion feasible.

T_MAXmust be < 150°C

P_TOTAL(MAX)≈ 96mW and the max die temp

will be 104°C

If this same circuit must run at 125°C, the max die

temp will increase to 150°C. (Note that supply current,

and therefore P_Q, is proportional to temperature. Refer to

Typical Performance Characteristics section.) In this con-

dition, the maximum output current should be reduced to

avoid device damage. Note that the MSOP package has a

larger θ_JAthan the S5, so additional care must be taken

when operating the LTC6101A/LTC6101HVA at high tem-

peratures and high output currents.

Output Error, E_OUT, Due to the Finite DC Open Loop

Gain, A_OL, of the LTC6101 Amplifier

This errors is inconsequential as the A_OLof the LTC6101

is very large.

Output Current Limitations Due to Power Dissipation

The LTC6101 can deliver up to 1mA continuous current to

the output pin. This current flows through R_INand enters

the current sense amp via the IN(–) pin. The power

dissipated in the LTC6101 due to the output signal is:

The LTC6101HV can be used at voltages up to 105V. This

additional voltage requires that more power be dissipated

for a given level of current. This will further limit the

allowed output current at high ambient temperatures.

P_OUT= (V_–IN– V_OUT) • I_OUT

Since V_–IN≈ V⁺, P_OUT≈ (V⁺– V_OUT) • I_OUT

ItisimportanttonotethattheLTC6101hasbeendesigned

to provide at least 1mA to the output when required, and

can deliver more depending on the conditions. Care must

Thereisalsopowerdissipatedduetothequiescentsupply

current:

6101fa

12

LTC6101/LTC6101HV

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APPLICATIO S I FOR ATIO

U

allow a wide V_SENSErange, it also allows the input refer-

ence to be separate from the positive supply (Figure 5).

Note that the difference between V_BATTand V⁺must be no

more than the common mode range listed in the Electrical

Characteristics table. If the maximum V_SENSEis less than

500mV,theLTC6101maymonitoritsownsupplycurrent,

as well as that of the load (Figure 6).

be taken to limit the maximum output current by proper

choice of sense resistor and, if input fault conditions exist,

external clamps.

Output Filtering

Theoutputvoltage,V_OUT,issimplyI_OUT•Z_OUT.Thismakes

filtering straightforward. Any circuit may be used which

generates the required Z_OUTto get the desired filter

response. For example, a capacitor in parallel with R_OUT

will give a low pass response. This will reduce unwanted

noise from the output, and may also be useful as a charge

reservoir to keep the output steady while driving a switch-

ing circuit such as a mux or ADC. This output capacitor in

parallel with an output resistor will create a pole in the

output response at:

V

BATTERY

R

IN

R

SENSE

4

2

3

5

–

+

V

LOAD

1

f_–3dB

=

1

2 • π •R_OUT•C_OUT

V

OUT

LTC6101

R

OUT

Useful Equations

6101 F05

+

Figure 5. V Powered Separately from

Input Voltage: V_SENSE= I_SENSE•R_SENSE

Load Supply (V

)

BATT

V_OUT

V_SENSE

R_OUT

R_IN

Voltage Gain:

Current Gain:

=

+

V

I_OUT

I_SENSE

R_SENSE

R_IN

R

IN

=

R

SENSE

4

2

3

5

–

+

I_OUT

V_SENSER_IN

1

Transconductance:

=

LOAD

V_OUT

I_SENSE

R_OUT

R_IN

Transimpedance:

= R_SENSE

•

1

V

LTC6101

OUT

R

OUT

Input Common Mode Range

6101 F06

The inputs of the LTC6101 can function from 1.5V below

the positive supply to 0.5V above it. Not only does this

Figure 6. LTC6101 Supply Current

Monitored with Load

6101fa

13

LTC6101/LTC6101HV

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APPLICATIO S I FOR ATIO

Reverse Supply Protection

If the output current is very low and an input transient

occurs, there may be an increased delay before the output

voltage begins changing. This can be improved by in-

creasingtheminimumoutputcurrent,eitherbyincreasing

R_SENSEor decreasing R_IN. The effect of increased output

current is illustrated in the step response curves in the

Typical Performance Characteristics section of this

datasheet. Note that the curves are labeled with respect to

the initial output currents.

Some applications may be tested with reverse-polarity

supplies due to an expectation of this type of fault during

operation. The LTC6101 is not protected internally from

external reversal of supply polarity. To prevent damage

that may occur during this condition, a Schottky diode

should be added in series with V^–(Figure 7). This will limit

the reverse current through the LTC6101. Note that this

diodewilllimitthelowvoltageperformanceoftheLTC6101

byeffectivelyreducingthesupplyvoltagetothepartbyV_D.

The speed is also affected by the external circuit. In this

case, if the input changes very quickly, the internal ampli-

fier will slew the gate of the internal output FET (Figure 1)

in order to maintain the internal loop. This results in

current flowing through R_INand the internal FET. This

current slew rate will be determined by the amplifier and

FETcharacteristicsaswellastheinputresistor, R_IN. Using

asmallerR_INwillallowtheoutputcurrenttoincreasemore

quickly, decreasing the response time at the output. This

will also have the effect of increasing the maximum output

current. Using a larger R_OUTwill decrease the response

time, since V_OUT= I_OUT• R_OUT. Reducing R_INand increas-

ing R_OUTwill both have the effect of increasing the voltage

gain of the circuit.

Inaddition,iftheoutputoftheLTC6101iswiredtoadevice

that will effectively short it to high voltage (such as

throughanESDprotectionclamp)duringareversesupply

condition, the LTC6101’s output should be connected

through a resistor or Schottky diode (Figure 8).

Response Time

TheLTC6101isdesignedtoexhibitfastresponsetoinputs

for the purpose of circuit protection or signal transmis-

sion. This response time will be affected by the external

circuit in two ways, delay and speed.

R

SENSE

R

SENSE

R1

100

R1

V

BATT

4

2

3

5

100

L

O

A

D

+

–

4

2

3

5

L

O

A

D

+

–

V

BATT

1

R3

1k

LTC6101

D1

1

LTC6101

D1

ADC

R2

4.99k

R2

4.99k

6101 F07

6101 F08

Figure 7. Schottky Prevents Damage During Supply Reversal

Figure 8. Additional Resistor R3 Protects

Output During Supply Reversal

6101fa

14

LTC6101/LTC6101HV

U

TYPICAL APPLICATIO S

Bidirectional Current Sense Circuit with Separate Charge/Discharge Output

I

CHARGE

DISCHARGE

R

SENSE

CHARGER

R

IN C

R

IN D

100

R

IN C

100

IN D

100

4

2

3

5

3

5

4

2

V

BATT

+

–

L

O

A

D

1

LTC6101

+

OUT D

–

+

R

OUT C

4.99k

OUT D

4.99k

V

OUT C

–

6101 TA02

R

OUT D

DISCHARGING: V

CHARGING: V

= I

• R

WHEN I

≥ 0

DISCHARGE

OUT D DISCHARGE

SENSE

R

(

)

IN D

OUT C

= I

• R

WHEN I

≥ 0

CHARGE

OUT C CHARGE

SENSE

(

)

R

IN C

LTC6101 Monitors Its Own Supply Current

High-Side-Input Transimpedance Amplifier

V

S

I

R

SENSE

LOAD

CMPZ4697*

(10V)

LASER MONITOR

PHOTODIODE

i

PD

I

R1

100

SUPPLY

4.75k

10k

4

2

3

5

L

O

A

D

4

3

5

+

–

+

–

2

V

BATT

1

LTC6101

+

–

R2

4.99k

1

V

OUT

LTC6101

V

O

6101 TA03

R

L

V

= I • R

L

6101 TA04

O

PD

V

OUT

= 49.9 • R

(

I

+ I

)

SENSE LOAD SUPPLY

*V SETS PHOTODIODE BIAS

Z

V

+ 4 ≤ V ≤ V + 60

S Z

Z

6101fa

15

LTC6101/LTC6101HV

U

TYPICAL APPLICATIO S

16-Bit Resolution Unidirectional Output into LTC2433 ADC

I

V

LOAD

SENSE

+

–

R

IN

4V TO 60V

100Ω

4

2

3

5

L

O

A

D

+

–

1µF

5V

2

1

+

V

REF

OUT

1

V

4

5

CC

9

8

7

+

LTC6101

IN

SCK

SDD

LTC2433-1

TO µP

R

OUT

4.99k

–

IN

C

–

F

REF GND

O

3

6

10

R

OUT

6101 TA06

V

=

• V

= 49.9V

SENSE

ADC FULL-SCALE = 2.5V

OUT

SENSE

IN

Intelligent High-Side Switch with Current Monitor

10µF

63V

V

LOGIC

14V

47k

5

100Ω

3

1%

FAULT

8

6

3

4

1

4

2

R

S

LT1910

1

LTC6101

2

V

O

OFF ON

100Ω

4.99k

1µF

5

SUB85N06-5

V

= 49.9 • R • I

S L

L

O

A

D

O

I

L

FOR R = 5mΩ,

S

V

O

= 2.5V AT I = 10A (FULL SCALE)

L

6101 TA07

6101fa

16

LTC6101/LTC6101HV

U

TYPICAL APPLICATIO S

48V Supply Current Monitor with Isolated Output with 105V Survivability

I

V

SENSE

–

+

V

LOAD

S

R

SENSE

R

IN

3

5

4

2

–

+

–

V

LTC6101HV

V

LOGIC

R

OUT

V

OUT

ANY OPTOISOLATOR

–

V

N = OPTOISOLATOR CURRENT GAIN

R

SENSE

V

= V

I

•

• N • R

OUT

LOGIC – SENSE

6101 TA08

R

IN

Simple 500V Current Monitor

DANGER! Lethal Potentials Present — Use Caution

I

V

SENSE

500V

SENSE

+

–

R

IN

100Ω

4

3

L

O

A

D

DANGER!!

HIGH VOLTAGE!!

+

–

2

5

1

62V

CMZ59448

LTC6101

M1

V

M2

OUT

R

OUT

M1 AND M2 ARE FQD3P50 TM

2M

4.99k

R

OUT

V

=

• V

= 49.9 V

SENSE SENSE

OUT

R

IN

6101 TA09

6101fa

17

LTC6101/LTC6101HV

U

PACKAGE DESCRIPTIO

MS8 Package

8-Lead Plastic MSOP

(Reference LTC DWG # 05-08-1660)

0.889 ± 0.127

(.035 ± .005)

5.23

(.206)

MIN

3.20 – 3.45

(.126 – .136)

3.00 ± 0.102

(.118 ± .004)

(NOTE 3)

0.52

(.0205)

REF

0.65

(.0256)

BSC

0.42 ± 0.038

(.0165 ± .0015)

TYP

8

7 6 5

RECOMMENDED SOLDER PAD LAYOUT

3.00 ± 0.102

(.118 ± .004)

(NOTE 4)

4.90 ± 0.152

(.193 ± .006)

DETAIL “A”

0.254

(.010)

0° – 6° TYP

GAUGE PLANE

1

2

3

4

0.53 ± 0.152

(.021 ± .006)

1.10

(.043)

MAX

0.86

(.034)

REF

DETAIL “A”

0.18

(.007)

SEATING

PLANE

0.22 – 0.38

0.127 ± 0.076

(.009 – .015)

(.005 ± .003)

0.65

(.0256)

BSC

TYP

MSOP (MS8) 0204

NOTE:

1. DIMENSIONS IN MILLIMETER/(INCH)

2. DRAWING NOT TO SCALE

3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.

MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE

4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.

INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE

5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX

6101fa

18

LTC6101/LTC6101HV

U

PACKAGE DESCRIPTIO

S5 Package

5-Lead Plastic TSOT-23

(Reference LTC DWG # 05-08-1635)

0.62

MAX

0.95

REF

2.90 BSC

(NOTE 4)

1.22 REF

1.50 – 1.75

(NOTE 4)

2.80 BSC

1.4 MIN

3.85 MAX 2.62 REF

PIN ONE

RECOMMENDED SOLDER PAD LAYOUT

PER IPC CALCULATOR

0.30 – 0.45 TYP

5 PLCS (NOTE 3)

0.95 BSC

0.80 – 0.90

0.20 BSC

DATUM ‘A’

0.01 – 0.10

1.00 MAX

0.30 – 0.50 REF

1.90 BSC

0.09 – 0.20

(NOTE 3)

NOTE:

S5 TSOT-23 0302

1. DIMENSIONS ARE IN MILLIMETERS

2. DRAWING NOT TO SCALE

3. DIMENSIONS ARE INCLUSIVE OF PLATING

4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR

5. MOLD FLASH SHALL NOT EXCEED 0.254mm

6. JEDEC PACKAGE REFERENCE IS MO-193

6101fa

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.

19

LTC6101/LTC6101HV

U

TYPICAL APPLICATIO

Bidirectional Current Sense Circuit with Combined Charge/Discharge Output

I

CHARGE

DISCHARGE

R

SENSE

CHARGER

R

IN C

R

IN D

R

IN D

R

IN C

4

2

3

5

3

5

4

2

V

BATT

+

–

L

O

A

D

1

LTC6101

+

OUT

V

R

OUT

–

6101 TA05

R

OUT

IN D

DISCHARGING: V

CHARGING: V

= I

• R

WHEN I

≥ 0

DISCHARGE

OUT DISCHARGE

SENSE

(

)

R

OUT

IN C

= I

• R

WHEN I

≥ 0

CHARGE

OUT CHARGE

SENSE

(

)

RELATED PARTS

PART NUMBER

DESCRIPTION

COMMENTS

Extends 44V above V , 55µA Supply Current,

LT1636

Rail-to-Rail Input/Output, Micropower Op Amp

V

CM

EE

Shutdown Function

LT1637/LT1638/

LT1639

Single/Dual/Quad, Rail-to-Rail, Micropower Op Amp

V

Extends 44V above V , 0.4V/µs Slew Rate, >1MHz

CM EE

Bandwidth, <250µA Supply Current per Amplifier

LT1787/LT1787HV Precision, Bidirectional, High Side Current Sense Amplifier

2.7V to 60V Operation, 75µV Offset, 60µA Current Draw

±200V Transient Protection, Drives Three Optoisolators for Status

±250V Common Mode, Micropower, Pin Selectable Gain = 1, 10

2.7V to ±18V, Micropower, Pin Selectable Gain = –13 to 14

3µV Offset, 30nV/°C Drift, Input Extends Down to V–

LTC1921

LT1990

LT1991

Dual –48V Supply and Fuse Monitor

High Voltage, Gain Selectable Difference Amplifier

Precision, Gain Selectable Difference Amplifier

LTC2050/LTC2051/ Single/Dual/Quad Zero-Drift Op Amp

LTC2052

LTC4150

Coulomb Counter/Battery Gas Gauge

Indicates Charge Quantity and Polarity

Over-The-Top is a trademark of Linear Technology Corporation.

6101fa

LT/TP 0805 500 REV A • PRINTED IN USA

LinearTechnology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

20

●

(408) 432-1900 FAX: (408) 434-0507 www.linear.com


型号：	LTC6101CCS5
厂家：	Linear
描述：	High Voltage, High-Side Current Sense Amplifier in SOT-23 高电压，高边电流检测放大器采用SOT -23 放大器
文件：	总20页 (文件大小：330K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LTC6101CCS5 [Linear]

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