ADM232LJNZ [ADI]
Low Power, +5V CMOS RS-232 100kBPS Transceiver with 2 Drivers/Receivers;
| 型号： | ADM232LJNZ |
| 厂家： | 
ADI |
| 描述： | Low Power, +5V CMOS RS-232 100kBPS Transceiver with 2 Drivers/Receivers 驱动器 |
| 文件： | 总9页 (文件大小：331K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
High Speed, +5 V, 0.1 µF
CMOS RS-232 Drivers/Receivers
a
ADM222/ADM232A/ADM242*
FUNCTIONAL BLOCK DIAGRAM
FEATURES
200 kB/s Transmission Rate
Small (0.1 µF) Charge Pump Capacitors
Single 5 V Power Supply
+5V INPUT
0.1µF
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
0.1µF
V
CC
C1+
+5V TO +10V
VOLTAGE DOUBLER
0.1µF
0.1µF
V+
V–
C1–
C2+
+5V TO –10V
VOLTAGE INVERTER
Pin Compatible with MAX222/MAX232A/MAX242
0.1µF
C2–
APPLICATIONS
Computers
Peripherals
Modems
Printers
Instruments
T1
T1
IN
T1
OUT
TTL/CMOS
RS-232
OUTPUTS
INPUTS
*
T2
IN
T2
OUT
T2
R1
R1
IN
IN
R1
OUT
OUT
RS-232
TTL/CMOS
OUTPUTS
INPUTS**
R2
R2
R2
GENERAL DESCRIPTION
(ADM242)
EN
ADM2xx
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.
SHDN
(ADM222, ADM242)
GND
*
INTERNAL 400kΩ PULL-UP RESISTOR
ON EACH TTL/MOS INPUT
** INTERNAL 5kΩ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
ORDERING GUIDE
The devices are fabricated on BiCMOS, an advanced mixed
technology process which 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.
Model
Temperature Range Package Option
ADM222AN
ADM222AR
–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
N-18
R-18W
N-16
R-16N
R-16W
N-18
ADM232AAN
ADM232AARN
ADM232AARW
ADM242AN
ADM242AR
The ADM232A is a pin-compatible, high speed upgrade for the
AD232 and for the ADM232L. It is available in 16-pin DIP and
in both narrow and wide surface mount (SOIC) packages.
The ADM222 contains an additional shutdown (SHDN) func-
tion which may be used to disable the device thereby reducing
the supply current to 0.1 µA. During shutdown, all transmit/
receive functions are disabled. The ADM222 is available in
18-pin DIP and in a wide surface mount (SOIC) package.
R-18W
The ADM242 combines both shutdown (SHDN) and enable
(EN) functions. The shutdown function reduces the supply
curent to 0.1 mA. During shutdown, the transmitters are
disabled 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-pin DIP and in a wide surface mount (SOIC)
package.
*Protected by U.S. Patent No. 5,237,209.
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
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: 617/329-4700 Fax: 617/326-8703
(VCC= +5 V ± 10%, C1–C4 = 0.1 µF; all spec-
ADM222/ADM232A/ADM242–SPECIFICATIONS ifications T
MIN to TMAX unless otherwise noted.)
Parameter
Min Typ Max Units 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 Pullup Current
Data Rate
Output Resistance
1.4
1.4
5
0.8
40
V
V
µA
kB/s
Ω
TIN
TIN
TIN = 0 V
2.0
200
300
±7
VCC = V+ = V– = 0 V, VOUT = ±2 V
Output Short Circuit Current (Instantaneous)
±22
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
1.3
1.8
0.5
5
2.4
1.0
7
0.2
3
VCC = 5 V
0.2
0.4
IOUT = 3.2 mA
IOUT = –1.0 mA
Source Current (VOUT = GND)
Sink Current (VOUT = VCC)
SHDN = GND/EN = VCC
0 V ≤ VOUT ≤ VCC
3.5
–2
10
–10
30
±0.05 ±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
15
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
6
V
AC CHARACTERISTICS
Transition Region Slew Rate
12
30
V/µs
CL = 50 pF to 2500 pF, RL = 3 kΩ to 7 k Ω
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
0.7
0.7
0.2
0.3
125
160
250
3.5
300
100
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
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
SHDN Goes high
SHDN Goes low
Specifications subject to change without notice.
–2–
REV. 0
ADM222/ADM232A/ADM242
Power Dissipation R-16W . . . . . . . . . . . . . . . . . . . . . 400 mW
(Derate 7 mW/°C above +70°C)
ABSOLUTE MAXIMUM RATINGS*
(
TA = +25˚C unless otherwise noted)
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±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)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 80°C/W
Power Dissipation N-18 . . . . . . . . . . . . . . . . . . . . . . . 400 mW
(Derate 7 mW/°C above +70°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 80°C/W
Power Dissipation R-18W . . . . . . . . . . . . . . . . . . . . . 400 mW
(Derate 7 mW/°C above +70°C)
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 80°C/W
Operating Temperature Range
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
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 80°C/W
Power Dissipation R-16N . . . . . . . . . . . . . . . . . . . . . 400 mW
(Derate 7 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
Test Circuits
+3V
+3V
V
IN
V
IN
0V
tPHLR
tPHLT
tPLHT
tPLHR
V+
0V
V–
V
CC
V
OUT
V
OUT
50%
GND
Figure 1. Transmitter Propagation Delay Timing
Figure 3. Receiver Propagation Delay Timing
+3V
3V
EN
INPUT
EN
INPUT
0V
0V
tDR
tER
V
OH
+3.5V
V
–0.5V
OH
RECEIVER
OUTPUT
RECEIVER
OUTPUT
+0.8V
V
+ 0.5V
OL
V
OL
Figure 2. Receiver Enable Timing
Figure 4. Receiver Disable Timing
REV. 0
–3–
ADM222/ADM232A/ADM242
PIN FUNCTION DESCRIPTION
Mnemonic Function
V
V
IN
OUT
3kΩ
SHDN
50pF
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
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.
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.
SHDN
INPUT
0V
tDT
V+
+ 5V
– 5V
TOUT
RIN
TRANSMITTER
OUTPUT
V–
ROUT
NC
Receiver Outputs. These are TTL/CMOS levels.
No Connect. No connections are required to this
pin.
Figure 6. Transmitter Shutdown Disable Timing
EN
(ADM242 Only) Active Low Digital Input. May
be used to enable or disable (three-state) both
receiver outputs.
SHDN
(ADM222 & ADM242) Active Low Digital
+5V INPUT
C5
0.1µF
6.3V
17
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.
C3
0.1µF
2
V
CC
C1+
C1
3
7
+5V TO +10V
VOLTAGE DOUBLER
V+
V–
0.1µF
4
5
C1–
C2+
+5V TO –10V
VOLTAGE INVERTER
C2
0.1µF
C4
6
C2–
0.1µF
15
12
T1
OUT
T1
T1
IN
NC
C1+
V+
1
2
3
18 SHDN
TTL/CMOS
INPUTS
RS-232
OUTPUTS
11
13
8
*
V
17
CC
T2
OUT
T2
IN
T2
R1
16 GND
14
R1
R1
R2
OUT
OUT
IN
C1–
C2+
C2–
4
5
6
15
14
13
T1
OUT
RS-232
ADM222
TOP VIEW
(Not to Scale)
TTL/CMOS
OUTPUTS
10
9
R1
INPUTS**
IN
R2
R2
IN
R1
OUT
ADM222
18
T1
V–
7
8
9
12
11
10
SHDN
IN
IN
GND
T2
T2
R2
OUT
16
*
INTERNAL 400kΩ PULL-UP RESISTOR
ON EACH TTL/MOS INPUT
R2
IN
OUT
** INTERNAL 5kΩ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
NC = NO CONNECT
Figure 7. ADM222 Typical Operating Circuit
Figure 8. ADM222 DIP & SOIC Pin Configurations
–4–
REV. 0
ADM222/ADM232A/ADM242
1
2
18 SHDN
17
EN
1
2
C1+
C1+
V+
V
V
CC
16
15
14
13
12
11
10
9
CC
GND
T1
V+
C1–
C2+
C2–
V–
3
4
16 GND
C1–
C2+
C2–
V–
T1
OUT
3
4
15
OUT
ADM242
TOP VIEW
(Not to Scale)
ADM232A
TOP VIEW
R1
R1
T1
R1
R1
T1
5
6
7
14
13
12
IN
IN
5
6
7
OUT
OUT
(Not to Scale)
IN
IN
IN
IN
8
9
11
10
T2
T2
T2
T2
OUT
OUT
8
R2
R2
R2
IN
R2
OUT
IN
OUT
Figure 9. ADM232A DIP/SOIC Pin Configuration
Figure 11. ADM242 DIP/SOIC Pin Configuration
+5V INPUT
+5V INPUT
C5
0.1µF
6.3V
C5
0.1µF
6.3V
17
C3
0.1µF
C3
0.1µF
2
1
V
V
CC
CC
C1+
C1+
C1
0.1µF
3
C1
0.1µF
2
6
+5V TO +10V
VOLTAGE DOUBLER
+5V TO +10V
V+
V–
V+
V–
4
5
3
VOLTAGE DOUBLER
C1–
C2+
C1–
4
C2+
7
+5V TO –10V
VOLTAGE INVERTER
C2
0.1µF
+5V TO –10V
C2
0.1µF
C4
0.1µF
VOLTAGE INVERTER
6
5
C4
0.1µF
C2–
C2–
15
8
14
12
11
T1
T1
T2
T1
T1
T1
T1
IN
IN
OUT
OUT
TTL/CMOS
INPUTS*
TTL/CMOS
INPUTS*
RS-232
OUTPUTS
RS-232
OUTPUTS
11
13
10
12
7
T2
R1
T2
IN
T2
OUT
T2
IN
T2
OUT
14
13
R1
R1
R1
R2
R1
OUT
IN
IN
IN
IN
OUT
R1
TTL/CMOS
OUTPUTS*
RS-232
INPUTS**
RS-232
INPUTS**
TTL/CMOS
OUTPUTS
10
1
9
9
8
R2
R2
R2
OUT
OUT
R2
R2
18
ADM232A
SHDN
EN
ADM242
GND
GND
16
15
* INTERNAL 400kΩ PULL-UP RESISTOR
ON EACH TTL/MOS INPUT
* INTERNAL 400kΩ PULL-UP RESISTOR
ON EACH TTL/MOS INPUT
** INTERNAL 5kΩ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
** INTERNAL 5kΩ PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
Figure 10. ADM232A Typical Operating Circuit
Figure 12. ADM242 Typical Operating Circuit
REV. 0
–5–
ADM222/ADM232A/ADM242–Typical Performance Characteristics
12
10
8
12
10
8
V
= ±5V
CC
V
= ±5V
CC
T = +25°C
A
T
= +25°C
A
V+
T
OUT
HIGH
| V– |
6
6
| T
LOW |
OUT
4
4
2
2
0
0
5
10
15
0
2
4
6
I
8
10
12
14
0
I+, ( | I– | ) – mA
– mA
OUT
Figure 13. Charge Pump V+, V– vs. Current
Figure 16. Transmitter Output Voltage vs. Current
9
20kB
60kB
8
7
A4
0.010V
120kB
10
90
6
5
200kB
10
4
3
0%
V
= +5V
CC
T
A
= +25°C
400kB
500kB
5V
5V
100µs
TX1 = +5V; TX2 = 0V – 5V SQUARE WAVE
BOTH TX OUTPUTS LOADED WITH 3k//CL
2
1000
2000
3000
4000
0
LOAD CAPACITANCE – pF
Figure 14. Transmitter Baud Rate vs. Load Capacitance
Figure 17. Charge Pump V+, V– Exiting Shutdown
A2
2.4V
A1
–0.6 V
100
90
100
90
10
10
0%
0%
5V
5V
5V 5V
1µs
1 µs
Figure 15. Transmitter Unloaded Slew Rate
Figure 18. Transmitter Fully Loaded Slew Rate
–6–
REV. 0
ADM222/ADM232A/ADM242
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.
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 trans-
mitters and receivers onto the same chip. CMOS technology is
used to keep the power dissipation to an absolute minimum.
All devices contains an internal charge pump voltage doubler
and a voltage inverter that generates ±10 V from the +5 V
input. Four external 0.1 µF capacitors are required for the
internal charge pump voltage converter.
Receiver Section
The receivers are inverting level shifters which 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 interpreted 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.
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
Enable and Shutdown Functions
On the ADM222, both receivers are fully disabled during
shutdown.
CIRCUIT DESCRIPTION
The internal circuitry consists of four main sections. These are:
A Charge Pump Voltage Converter
TTL/CMOS to RS-232 Transmitters
RS-232 to TTL/CMOS Receivers
Enable and Shutdown Functions.
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.
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.
APPLICATIONS INFORMATION
A selection of typical operating circuits is shown in Figures 13
to 19.
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
impedance on the V+ and V– supplies.
A1
2.0V
100
90
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.
10
0%
5V
5V
5µS
In the shutdown mode the charge pump is disabled and V+
decays to VCC while V– decays to 0 V.
Figure 19. Transmitter Output Disable Timing
Transmitter (Driver) Section
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.
The input threshold levels are both TTL and CMOS compat-
ible with the switching threshold set at VCC/4. With a nominal
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.
REV. 0
–7–
ADM222/ADM232A/ADM242
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
16-Pin Plastic DIP
(N-16)
16-Lead Narrow SOIC
(R-16N)
0.2440 (6.20)
0.2284 (5.80)
16
1
9
8
16
9
0.280 (7.11)
0.240 (6.10)
0.1574 (4.00)
0.1497 (3.80)
PIN 1
8
1
0.325 (8.25)
0.300 (7.62)
0.840 (21.33)
0.745 (18.93)
0.0688 (1.75)
0.0532 (1.35)
0.060 (1.52)
0.015 (0.38)
0.3937 (10.00)
0.3859 (9.80)
0.195 (4.95)
0.115 (2.93)
0.210
(5.33)
0.0196 (0.50)
0.0099 (0.25)
0.150
(3.81)
0°– 8°
0.200 (5.05)
0.125 (3.18)
0.015 (0.381)
0.008 (0.204)
0.0192 (0.49)
0.0138 (0.35)
0.0098 (0.25)
0.0040 (0.10)
0.0500 (1.27)
BSC
SEATING
PLANE
0.0099 (0.25)
0.0075 (0.19)
0.022 (0.558)
0.014 (0.356)
0.070 (1.77)
0.045 (1.15)
0.100
(2.54)
BSC
0.0500 (1.27)
0.0160 (0.41)
16-Lead Wide SOIC
(R-16W)
18-Lead Wide SOIC
(R-18W)
16
9
18
10
0.2992 (7.60)
0.2914 (7.40)
0.419
(10.65)
0.299
(7.60)
0.4193 (10.65)
0.3937 (10.00)
1
8
PIN 1
1
9
0.030
(0.75)
0.413 (10.50)
0.012
(0.3)
0.1043 (2.65)
0.4625 (11.75)
0.4469 (11.35)
0.104
(2.65)
0.0926 (2.35)
0.0291 (0.74)
0.0098 (0.25)
x 45°
0.042
(1.07)
0.05 (1.27)
REF
0.019 (0.49)
0.013
(0.32)
0.0500 (1.27)
0.0157 (0.40)
8
0
°
°
0.0118 (0.30)
0.0040 (0.10)
0.0192 (0.49)
0.0138 (0.35)
0.0500
(1.27)
BSC
0.0125 (0.32)
0.0091 (0.23)
18-Pin Plastic DIP
(N-18)
18
1
10
0.280 (7.11)
0.240 (6.10)
PIN 1
9
0.325 (8.25)
0.300 (7.62)
0.925 (23.49)
0.845 (21.47)
0.060 (1.52)
0.015 (0.38)
0.195 (4.95)
0.115 (2.93)
0.210
(5.33)
MAX
0.130
(3.30)
MIN
0.160 (4.06)
0.115 (2.93)
0.015 (0.381)
0.008 (0.204)
SEATING
PLANE
0.100
(2.54)
BSC
0.022 (0.558)
0.014 (0.356)
0.070 (1.77)
0.045 (1.15)
–8–
REV. 0
ADM222/ADM232A/ADM242
ORDERING GUIDE
Model
Temperature Range Package Option*
ADM222AN
ADM222AR
–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
N-18
R-18W
N-16
R-16N
R-16W
N-18
ADM232AAN
ADM232AARN
ADM232AARW
ADM242AN
ADM242AR
R-18W
*For outline information see Package Information section.
REV. 0
–9–
相关型号：
ADM232LJR-REEL
Line Transceiver, 2 Func, 2 Driver, 2 Rcvr, CMOS, PDSO16, MS-013AA, SOIC-16
ROCHESTER
ADM233LAN
Line Transceiver, 2 Func, 2 Driver, 2 Rcvr, CMOS, PDIP20, PLASTIC, MO-095AE, DIP-20
ROCHESTER
©2020 ICPDF网 联系我们和版权申明