ADM222ARZ [ADI]
High-Speed, 5 V, 0.1 F CMOS RS-232 Drivers/Receivers; 高速， 5 V ， 0.1 ？F的CMOS RS - 232驱动器/接收器
| 型号： | ADM222ARZ |
| 厂家： | 
ADI |
| 描述： | High-Speed, 5 V, 0.1 F CMOS RS-232 Drivers/Receivers |
| 文件： | 总11页 (文件大小：183K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
High-Speed, 5 V, 0.1 ꢀF
CMOS RS-232 Drivers/Receivers
a
ADM222/ADM232A/ADM242
FUNCTIONAL BLOCK DIAGRAM
FEATURES
200 kB/s Transmission Rate
Small (0.1 ꢀF) Charge Pump Capacitors
Single 5 V Power Supply
5V INPUT
0.1ꢀF
Meets All EIA-232-E and V.28 Specifications
Two Drivers and Two Receivers
On-Board DC-DC Converters
ꢁ9 V Output Swing with 5 V Supply
ꢁ30 V Receiver Input Levels
0.1ꢀF
V
CC
C1+
+5V TO +10V
VOLTAGE DOUBLER
0.1ꢀF
0.1ꢀF
V+
V–
C1–
C2+
+5V TO –10V
VOLTAGE INVERTER
Pin Compatible with MAX222/MAX232A/MAX242
0.1ꢀF
C2–
APPLICATIONS
Computers
Peripherals
Modems
Printers
Instruments
T1
T1
T1
IN
OUT
TTL/CMOS
RS-232
OUTPUTS
INPUTS
*
T2
T2
T2
R1
IN
OUT
R1
R1
IN
OUT
OUT
RINSP-U23T2S**
TTL/CMOS
OUTPUTS
R2
R2
R2
IN
ADM2xx
(ADM242)
EN
(ADM222, ADM242)
GENERAL DESCRIPTION
SHDN
GND
The ADM222, ADM232A, ADM242 are a family of high-speed
RS-232 line drivers/receivers offering transmission rates up to
200 kB/s. Operating from a single 5 V power supply, a highly
efficient on-chip charge pump using small (0.1 µF) external
capacitors allows RS-232 bipolar levels to be developed. Two
RS-232 drivers and two RS-232 receivers are provided on
each device.
*
INTERNAL 400kꢂ PULL-UP RESISTOR
ON EACH TTL/CMOS INPUT
** INTERNAL 5kꢂ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
functions are disabled. The ADM222 is available in 18-lead
DIP and in a wide surface-mount (SOIC) package.
The devices are fabricated on BiCMOS, an advanced mixed
technology process that combines low power CMOS with high-
speed bipolar circuitry. This allows for transmission rates up to
200 kB/s, yet minimizes the quiescent power supply current to
under 5 mA.
The ADM242 combines both shutdown (SHDN) and enable
(EN) functions. The shutdown function reduces the supply
current to 0.1 mA. During shutdown, the transmitters are dis-
abled but the receivers continue to operate normally. The
enable function allows the receiver outputs to be disabled
thereby facilitating sharing a common bus. The ADM242 is
available in 18-lead DIP and in a wide surface-mount (SOIC)
package.
The ADM232A is a pin-compatible, high-speed upgrade for the
AD232 and for the ADM232L. It is available in 16-lead DIP
and in both narrow and wide surface-mount (SOIC) packages.
The ADM222 contains an additional shutdown (SHDN) func-
tion that may be used to disable the device, thereby reducing the
supply current to 0.1 µA. During shutdown, all transmit/receive
REV.
B
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
2010
781/461-3113
Fax:
© Analog Devices, Inc.,
ADM222/ADM232A/ADM242–SPECIFICATIONS (ifVica=tio5nsVTꢁMIN1t0o%TM. ACX1u–nCle4s=s o0t.h1eꢀrwFi;saellnospteedc.)-
CC
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
RS-232 TRANSMITTERS
Output Voltage Swing
5
9
V
All Transmitter Outputs Loaded with
3 kΩ to Ground
Input Logic Threshold Low, VINL
Input Logic Threshold High, VINH
Logic Pull-Up Current
Data Rate
Output Resistance
1.7
1.7
12
0.8
40
V
V
TIN
2.4
TIN
TIN = 0 V
µA
kB/s
Ω
200
300
VCC = V+ = V– = 0 V, VOUT = 2 V
Output Short Circuit Current (Instantaneous)
10
mA
RS-232 RECEIVERS
RS-232 Input Voltage Range
RS-232 Input Threshold Low
RS-232 Input Threshold High
RS-232 Input Hysteresis
RS-232 Input Resistance
TTL/CMOS Output Voltage Low, VOL
TTL/CMOS Output Voltage High, VOH
TTL/CMOS Output Short-Circuit Current
TTL/CMOS Output Short-Circuit Current
TTL/CMOS Output Leakage Current
–30
0.8
+30
V
V
V
V
kΩ
V
V
mA
mA
µA
1.2
1.6
0.4
5
2.4
1.0
7
0.2
3
VCC = 5 V
TA = 0°C to 85°C
IOUT = 3.2 mA
IOUT = –1.0 mA
0.05
0.4
3.5
–2
10
–85
35
0.05
Source Current (VOUT = GND)*
Sink Current (VOUT = VCC)*
SHDN = GND/EN = VCC
0 V ≤ VOUT ≤ VCC
10
EN Input Threshold Low, VINL
EN Input Threshold High, VINH
1.4
1.4
0.8
V
V
2.0
POWER SUPPLY
Power Supply Current
4
13
0.1
8
mA
mA
µA
µA
V
No Load
3 kΩ Load on Both Outputs
Shutdown Power Supply Current
SHDN Input Leakage Current
SHDN Input Threshold Low, VINL
SHDN Input Threshold High, VINH
10
1
0.8
1.4
1.4
2.0
3
V
AC CHARACTERISTICS
Transition Region Slew Rate
8
30
V/µs
CL = 50 pF to 1000 pF, RL = 3 kΩ to 7 kΩ
Measured from +3 V to –3 V or –3 V to +3 V
Transmitter Propagation Delay TTL to RS-232
Receiver Propagation Delay RS-232 to TTL
0.85
1.0
0.1
3.5
3.5
0.5
0.5
500
500
µs
µs
µs
µs
ns
ns
µs
µs
ns
ns
tPHLT
tPLHT
tPHLR
tPLHR
tER
tDR
0.3
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Output Enable Time
Transmitter Output Disable Time
Transmitter + to – Propagation Delay Difference
Receiver + to – Propagation Delay Difference
125
160
250
3.5
150
200
SHDN Goes High
SHDN Goes Low
*Guaranteed by design, not production tested.
Specifications subject to change without notice.
–2–
REV.
B
ADM222/ADM232A/ADM242
ABSOLUTE MAXIMUM RATINGS*
(TA = 25°C unless otherwise noted)
Power Dissipation R-18W . . . . . . . . . . . . . . . . . . . . . 400 mW
(Derate 7 mW/°C above 70°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 80°C/W
Operating Temperature Range
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . (VCC – 0.3 V) to +13 V
V– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –13 V
Input Voltages
TIN . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)
RIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Industrial (A Version) . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . 300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
30 V
Output Voltages
TOUT . . . . . . . . . . . . . . . . . . . (V+, +0.3 V) to (V–, –0.3 V)
ROUT . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)
Short Circuit Duration
TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Power Dissipation N-16 . . . . . . . . . . . . . . . . . . . . . . 400 mW
(Derate 7.5 mW/°C above 70°C)
*This is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operation sections of this specifica-
tion is not implied. Exposure to absolute maximum rating conditions for extended
periods of time may affect reliability.
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 80°C/W
Power Dissipation R-16N . . . . . . . . . . . . . . . . . . . . . 400 mW
(Derate 7 mW/°C above 70°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 80°C/W
Power Dissipation R-16W . . . . . . . . . . . . . . . . . . . . . 400 mW
(Derate 7 mW/°C above 70°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 80°CW
Power Dissipation N-18 . . . . . . . . . . . . . . . . . . . . . . 400 mW
(Derate 7 mW/°C above 70°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 80°C/W
Test Circuits
3V
3V
V
0V
IN
V
IN
tPHLR
tPLHR
tPLHT
tPHLT
V
CC
V+
0V
V–
V
50%
OUT
V
OUT
GND
Figure 1. Transmitter Propagation Delay Timing
Figure 3. Receiver Propagation DelayTiming
3V
EN
INPUT
3V
0V
EN
INPUT
0V
tDR
tER
V
OH
V
– 0.5V
3.5V
OH
RECEIVER
OUTPUT
RECEIVER
OUTPUT
V
+ 0.5V
OL
0.8V
V
OL
Figure 2. Receiver Enable Timing
Figure 4. Receiver Disable Timing
REV.
–3–
B
ADM222/ADM232A/ADM242
PIN FUNCTION DESCRIPTION
Mnemonic Function
V
V
OUT
IN
50pF
3kꢂ
SHDN
VCC
V+
Power Supply Input, 5 V 10%.
Internally generated positive supply (+10 V
nominal).
V–
Internally generated negative supply (–10 V
nominal).
Figure 5. Shutdown Test Circuit
GND
C1+
Ground Pin. Must be connected to 0 V.
External capacitor 1, (+ terminal) is connected
to this pin.
3V
SHDN
INPUT
C1–
C2+
C2–
TIN
External capacitor 1, (– terminal) is connected
to this pin.
External capacitor 2, (+ terminal) is connected
to this pin.
External capacitor 2, (– terminal) is connected
to this pin.
Transmitter (Driver) Inputs. These inputs accept
TTL/CMOS levels. An internal 400 kΩ pull-up
resistor to VCC is connected on each input.
0V
tDT
V+
+ 5V
TRANSMITTER
OUTPUT
TOUT
RIN
Transmitter (Driver) Outputs. These are RS-232
levels (typically 9 V).
Receiver Inputs. These inputs accept RS-232
signal levels. An internal 5 kΩ pull-down resistor
to GND is connected on each of these inputs.
– 5V
V–
Figure 6. Transmitter Shutdown Disable Timing
ROUT
NC
Receiver Outputs. These are TTL/CMOS levels.
No Connect. No connections are required to
this pin.
5V INPUT
C5
0.1ꢀF
6.3V
EN
(ADM242 Only) Active Low Digital Input. May
be used to enable or disable (three-state) both
receiver outputs.
(ADM222 and ADM242) Active Low Digital
Input. May be used to disable the device so that
the power consumption is minimized. On the
ADM222 all drivers and receivers are disabled.
On the ADM242 the drivers are disabled but the
receivers remain enabled.
17
C3
0.1ꢀF
2
V
CC
C1+
3
7
C1
+5V TO +10V
VOLTAGE DOUBLER
V+
SHDN
0.1ꢀF
4
5
C1–
C2+
+5V TO –10V
VOLTAGE INVERTER
C2
V–
0.1ꢀF
6
C4
0.1ꢀF
C2–
12
15
T1
T1
T1
IN
OUT
OUT
TTL/CMOS
RS-232
OUTPUTS
INPUTS
*
11
13
8
T2
T2
T2
R1
IN
1
2
3
4
5
6
7
8
9
18
17
NC
C1+
V+
SHDN
14
R1
R1
V
IN
OUT
OUT
CC
IRNSP-U23T2S**
TTL/CMOS
OUTPUTS
16 GND
15 T1
10
9
R2
R2
R2
IN
C1–
C2+
C2–
V–
OUT
ADM222
TOP VIEW
(Not to Scale)
ADM222
18
14 R1
13 R1
12 T1
IN
SHDN
GND
16
OUT
*
INTERNAL 400kꢂ PULL-UP RESISTOR
ON EACH TTL/CMOS INPUT
IN
IN
T2
OUT
11 T2
** INTERNAL 5kꢂ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
R2
IN
R2
OUT
10
NC = NO CONNECT
Figure 7. ADM222 Typical Operating Circuit
Figure 8. ADM222 DIP and SOIC Pin Configurations
–4–
REV.
B
ADM222/ADM232A/ADM242
1
2
3
4
5
6
7
8
9
18
EN
SHDN
C1+
17
V
1
2
3
4
5
6
7
8
16
V
C1+
V+
CC
CC
V+
C1–
C2+
C2–
V–
16 GND
15 T1
15 GND
14 T1
C1–
C2+
C2–
V–
OUT
OUT
ADM242
TOP VIEW
(Not to Scale)
14 R1
13 R1
12 T1
ADM232A
TOP VIEW
(Not to Scale)
13
R1
IN
IN
12 R1
OUT
OUT
IN
T1
T2
11
10
9
IN
IN
T2
OUT
11 T2
T2
OUT
IN
R2
IN
R2
OUT
10
R2
IN
R2
OUT
Figure 9. ADM232A DIP/SOIC Pin Configuration
Figure 11. ADM242 DIP/SOIC Pin Configuration
5V INPUT
5V INPUT
C5
0.1ꢀF
C5
0.1ꢀF
6.3V
6.3V
17
16
C3
0.1ꢀF
C3
0.1ꢀF
1
2
V
V
CC
CC
C1+
C1+
3
7
2
6
C1
0.1ꢀF
C1
0.1ꢀF
+5V TO +10V
VOLTAGE DOUBLER
+5V TO +10V
VOLTAGE DOUBLER
V+
V+
3
4
4
5
C1–
C1–
C2+
C2+
+5V TO –10V
VOLTAGE INVERTER
+5V TO –10V
VOLTAGE INVERTER
C2
C2
0.1ꢀF
V–
V–
0.1ꢀF
5
C4
0.1ꢀF
6
C4
0.1ꢀF
C2–
C2–
11
12
15
14
T1
T1
T1
T1
T1
T1
IN
IN
OUT
OUT
OUT
OUT
TTL/CMOS
TTL/CMOS
INPUTS*
RS-232
OUTPUTS
RS-232
OUTPUTS
INPUTS
*
10
12
11
13
7
8
T2
T2
IN
T2
T2
T2
R1
T2
R1
IN
14
13
R1
R1
R1
R1
IN
IN
OUT
OUT
OUT
9
IRNSP-U23T2S**
RINSP-U23T2S**
TTL/CMOS
OUTPUTS
TTL/CMOS
OUTPUTS
9
8
10
1
R2
R2
R2
R2
R2
R2
IN
IN
OUT
ADM232A
18
EN
SHDN
ADM242
GND
15
GND
16
*
INTERNAL 400kꢂ PULL-UP RESISTOR
ON EACH TTL/CMOS INPUT
*
INTERNAL 400kꢂ PULL-UP RESISTOR
ON EACH TTL/CMOS INPUT
** INTERNAL 5kꢂ PULL-DOWN RESISTOR
** INTERNAL 5kꢂ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
ON EACH RS-232 INPUT
Figure 10. ADM232A Typical Operating Circuit
Figure 12. ADM242 Typical Operating Circuit
REV.
–5–
B
–Typical Performance Characteristics
ADM222/ADM232A/ADM242
15
15
10
10
V+
Tx O/P HI
5
0
5
0
–5
–5
Tx O/P LO
V–
–10
–10
–15
–15
0
5
10
15
20
25
30
0
2
4
6
8
10
12
14
LOAD CURRENT – mA
LOAD CURRENT – mA
TPC 1. Charge Pump V+, V– vs. Current
TPC 4. Transmitter Output Voltage vs. Current
9
115kBps
7
5
230kBps
A4
0.010V
115kBps
3
100
90
1
–1
–3
–5
–7
–9
460kBps
10
0%
460kBps
230kBps
5V
5V
100ꢀs
0
500
1000
1500
2000
2500
3000
LOAD CAPACITANCE – pF
TPC 2. Transmitter Baud Rate vs. Load Capacitance
TPC 5. Charge Pump V+, V– Exiting Shutdown
T
T
ꢃ: 6.2V
ꢃ: 6.0V
ꢃ: 140ns
@: –3.5V
ꢃ: 600ns
@: –2.9V
T
T
CH1
10.0V
CH2
5.00V
M 1.00ꢀs
CH2
–6.4V
CH1
10.0V
CH2
5.00V
M 1.00ꢀs
CH2
–6.4V
TPC 3. Transmitter Unloaded Slew Rate
TPC 6. Transmitter Fully Loaded Slew Rate
–6–
REV.
B
ADM222/ADM232A/ADM242
The input threshold levels are both TTL- and CMOS-compat-
ible with the switching threshold set at VCC/4. With a nominal
GENERAL INFORMATION
The ADM222/ADM232A/ADM242 are high-speed RS-232
drivers/receivers requiring a single digital 5 V supply. The RS-232
standard requires transmitters that will deliver 5 V minimum
on the transmission channel and receivers that can accept signal
levels down to 3 V. The parts achieve this by integrating step-
up voltage converters and level-shifting transmitters and receivers
onto the same chip. CMOS technology is used to keep the
power dissipation to an absolute minimum. All devices con-
tain an internal charge pump voltage doubler and a voltage
inverter that generates 10 V from the 5 V input. Four exter-
nal 0.1 µF capacitors are required for the internal charge pump
voltage converter.
VCC = 5 V, the switching threshold is 1.25 V typical. Unused
inputs may be left unconnected, as an internal 400 kΩ pull-up
resistor pulls them high forcing the outputs into a low state.
As required by the RS-232 standard, the slew rate is limited to
less than 30 V/µs without the need for an external slew limiting
capacitor, and the output impedance in the power-off state is
greater than 300 Ω.
Receiver Section
The receivers are inverting level-shifters that accept RS-232
input levels ( 3 V to 15 V) and translate them into 5 V TTL/
CMOS levels. The inputs have internal 5 kΩ pull-down resistors
to ground and are also protected against overvoltages of up to
30 V. The guaranteed switching thresholds are 0.8 V mini-
mum and 2.4 V maximum, which are well within the 3 V
RS-232 requirement. The low level threshold is deliberately
positive as it ensures that an unconnected input will be inter-
preted as a low level.
The ADM222/ADM232A/ADM242 is a modification, enhance-
ment and improvement to the AD230-AD241 family and
derivatives thereof. It is essentially plug-in-compatible and does
not have materially different applications.
CIRCUIT DESCRIPTION
The internal circuitry consists of four main sections. These are:
The receivers have Schmitt trigger input with a hysteresis level
of 0.5 V. This ensures error-free reception for both noisy inputs
and for inputs with slow transition times
Charge Pump Voltage Converter
TTL/CMOS to RS-232 Transmitters
RS-232 to TTL/CMOS Receivers
Enable and Shutdown Functions.
Enable and Shutdown Functions
On the ADM222, both receivers are fully disabled during
shutdown.
Charge Pump DC-DC Voltage Converter
The Charge Pump Voltage converter consists of an oscillator
and a switching matrix. The converter generates a 10 V supply
from the input 5 V level. This is done in two stages using a
switched capacitor technique. The 5 V input supply is doubled
to 10 V using capacitor C1 as the charge storage element. The
–10 V level is also generated from the input 5 V supply using C1
and C2 as the storage elements.
On the ADM242, both receivers continue to operate normally.
This function is useful for monitoring activity so that when it
occurs, the device can be taken out of the shutdown mode.
The ADM242 also contains a receiver enable function (EN)
which can be used to fully disable the receivers, independent
of SHDN.
Capacitors C3 and C4 are used to reduce the output ripple.
Their values are not critical and can be reduced if higher levels
of ripple are acceptable. The charge pump capacitors C1 and
C2 may also be reduced at the expense of higher output imped-
ance on the V+ and V– supplies.
APPLICATIONS INFORMATION
A selection of typical operating circuits is shown in TPCs 1–6
and Figure 13.
A1
2.0V
The V+ and V– supplies may also be used to power external
circuitry if the current requirements are small. Please refer to
the typical performance characteristics which shows the V+, V–
output voltage vs. current.
100
90
In the shutdown mode the charge pump is disabled and V+
decays to VCC while V– decays to 0 V.
10
Transmitter (Driver) Section
0%
The Drivers convert TTL/CMOS input levels into RS-232
output levels. With VCC = 5 V and driving a typical RS-232
load, the output voltage swing is 9 V. Even under worst-case
conditions the drivers are guaranteed to meet the 5 V RS-232
minimum requirement.
5V
5V
5ꢀs
Figure 13. Transmitter Output Disable Timing
REV.
–7–
B
ADM222/ADM232A/ADM242
OUTLINE DIMENSIONS
0.800 (20.32)
0.790 (20.07)
0.780 (19.81)
16
9
8
0.280 (7.11)
0.250 (6.35)
0.240 (6.10)
1
0.325 (8.26)
0.310 (7.87)
0.300 (7.62)
0.100 (2.54)
BSC
0.060 (1.52)
MAX
0.195 (4.95)
0.130 (3.30)
0.115 (2.92)
0.210 (5.33)
MAX
0.015
(0.38)
MIN
0.150 (3.81)
0.130 (3.30)
0.115 (2.92)
0.015 (0.38)
GAUGE
0.014 (0.36)
0.010 (0.25)
0.008 (0.20)
PLANE
SEATING
PLANE
0.022 (0.56)
0.018 (0.46)
0.014 (0.36)
0.430 (10.92)
MAX
0.005 (0.13)
MIN
0.070 (1.78)
0.060 (1.52)
0.045 (1.14)
COMPLIANT TO JEDEC STANDARDS MS-001-AB
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS.
Figure 14. 16-Lead Plastic Dual In-Line Package [PDIP]
Narrow Body
(N-16)
Dimensions shown in inches and (millimeters)
10.50 (0.4134)
10.10 (0.3976)
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)
1.27 (0.0500)
BSC
45°
2.65 (0.1043)
2.35 (0.0925)
0.30 (0.0118)
0.10 (0.0039)
8°
0°
COPLANARITY
0.10
SEATING
PLANE
0.51 (0.0201)
0.31 (0.0122)
1.27 (0.0500)
0.40 (0.0157)
0.33 (0.0130)
0.20 (0.0079)
COMPLIANT TO JEDEC STANDARDS MS-013-AA
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 15. 16-Lead Standard Small Outline Package [SOIC_W]
Wide Body
(RW-16)
Dimensions shown in millimeters and (inches)
–8–
REV. B
ADM222/ADM232A/ADM242
10.00 (0.3937)
9.80 (0.3858)
9
8
16
1
6.20 (0.2441)
5.80 (0.2283)
4.00 (0.1575)
3.80 (0.1496)
1.27 (0.0500)
BSC
0.50 (0.0197)
0.25 (0.0098)
45°
1.75 (0.0689)
1.35 (0.0531)
0.25 (0.0098)
0.10 (0.0039)
8°
0°
COPLANARITY
0.10
SEATING
PLANE
1.27 (0.0500)
0.40 (0.0157)
0.51 (0.0201)
0.31 (0.0122)
0.25 (0.0098)
0.17 (0.0067)
COMPLIANT TO JEDEC STANDARDS MS-012-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 16. 16-Lead Standard Small Outline Package [SOIC_N]
Narrow Body
(R-16)
Dimensions shown in millimeters and (inches)
11.75 (0.4626)
11.35 (0.4469)
18
1
10
9
7.60 (0.2992)
7.40 (0.2913)
10.65 (0.4193)
10.00 (0.3937)
0.75 (0.0295)
0.25 (0.0
098)
45°
2.65 (0.1043)
2.35 (0.0925)
0.30 (0.0118)
0.10 (0.0039)
8°
0°
COPLANARITY
0.10
SEATING
PLANE
0.51 (0.0201)
0.31 (0.0122)
1.27 (0.0500)
0.40 (0.0157)
1.27
(0.0500)
BSC
0.33 (0.0130)
0.20 (0.0079)
COMPLIANT TO JEDEC STANDARDS MS-013-AB
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 17. 18-Lead Standard Small Outline Package [SOIC_W]
Wide Body
(RW-18)
Dimensions shown in millimeters and (inches)
REV. B
–9–
ADM222/ADM232A/ADM242
0.920 (23.37)
0.900 (22.86)
0.880 (22.35)
18
1
10
9
0.280 (7.11)
0.250 (6.35)
0.240 (6.10)
0.325 (8.26)
0.310 (7.87)
0.300 (7.62)
0.100 (2.54)
BSC
0.060 (1.52)
MAX
0.195 (4.95)
0.130 (3.30)
0.115 (2.92)
0.210 (5.33)
MAX
0.015
(0.38)
MIN
0.150 (3.81)
0.130 (3.30)
0.115 (2.92)
0.015 (0.38)
GAUGE
0.014 (0.36)
0.010 (0.25)
0.008 (0.20)
PLANE
SEATING
PLANE
0.022 (0.56)
0.018 (0.46)
0.014 (0.36)
0.430 (10.92)
MAX
0.005 (0.13)
MIN
0.070 (1.78)
0.060 (1.52)
0.045 (1.14)
COMPLIANT TO JEDEC STANDARDS MS-001
CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS.
Figure 18. 18-Lead Plastic Dual In-Line Package [PDIP]
Narrow Body
(N-18)
Dimensions shown in inches and (millimeters)
ORDERING GUIDE
Model1
ADM222AN
ADM222ANZ
ADM222AR
ADM222ARZ
ADM222ARZ-REEL
ADM232AAN
ADM232AANZ
ADM232AARN
ADM232AARN-REEL
ADM232AARN-REEL7
ADM232AARNZ
ADM232AARNZ-REEL
ADM232AARNZ-REEL7
ADM232AARW
ADM232AARW-REEL
ADM232AARWZ
ADM232AARWZ-REEL
ADM242AN
ADM242ANZ
ADM242AR
ADM242AR-REEL
ADM242ARZ
ADM242ARZ-REEL
Temperature Range
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
Package Description
18-Lead PDIP
18-Lead PDIP
18-Lead SOIC_W
18-Lead SOIC_W
18-Lead SOIC_W
16-Lead PDIP
Package Option
N-18
N-18
RW-18
RW-18
RW-18
N-16
N-16
R-16
R-16
R-16
R-16
R-16
R-16
RW-16
RW-16
RW-16
RW-16
N-18
16-Lead PDIP
16-Lead SOIC_N
16-Lead SOIC_N
16-Lead SOIC_N
16-Lead SOIC_N
16-Lead SOIC_N
16-Lead SOIC_N
16-Lead SOIC_W
16-Lead SOIC_W
16-Lead SOIC_W
16-Lead SOIC_W
18-Lead PDIP
18-Lead PDIP
N-18
18-Lead SOIC_W
18-Lead SOIC_W
18-Lead SOIC_W
18-Lead SOIC_W
RW-18
RW-18
RW-18
RW-18
1 Z = RoHS Compliant Part.
–10–
REV. B
ADM222/ADM232A/ADM242
REVISION HISTORY
11/10—Rev. A to Rev. B
Updated Outline Dimensions......................................................... 9
Changes to Ordering Guide .......................................................... 10
©2010 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D01213-0-11/10(B)
REV. B
–11–
相关型号：
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