ADM231LAR Analog Devices Inc, ADM231LAR Datasheet

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ADM231LAR

Manufacturer Part Number
ADM231LAR
Description
IC TX/TX RS-232 DUAL 5V 16SOIC
Manufacturer
Analog Devices Inc
Type
Transceiverr
Datasheet

Specifications of ADM231LAR

Rohs Status
RoHS non-compliant
Number Of Drivers/receivers
2/2
Protocol
RS232
Voltage - Supply
4.5 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.300", 7.5mm Width)

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADM231LARZ
Manufacturer:
AD
Quantity:
10 572
FEATURES
Single 5 V power supply
Meets all EIA-232-E and V.28 specifications
120 kbps data rate
On-board dc-to-dc converters
±9 V output swing with 5 V supply
Small 1 µF capacitors
Low power shutdown ≤1 µA
±30 V receiver input levels
Latch-up free
APPLICATIONS
Computers
Peripherals
Modems
Printers
Instruments
GENERAL DESCRIPTION
The ADM2xx family of line drivers/receivers is intended for all
EIA-232-E and V.28 communications interfaces, especially in
applications in which 12 V is not available. The ADM236L and
ADM241L feature a low power shutdown mode that reduces
power dissipation to less than 5 µW, making them ideally suited
for battery-powered equipment. The ADM233L does not
require any external components and is particularly useful in
applications where printed circuit board space is critical.
All members of the ADM2xxL family, except the ADM231L and
ADM239L, include two internal charge pump voltage converters
that allow operation from a single 5 V supply. These parts convert
the 5 V input power to the ±10 V required for RS-232 output
Table 1. Selection Table
Part
Number
ADM231L
ADM232L
ADM233L
ADM234L
ADM236L
ADM237L
ADM238L
ADM239L
ADM241L
Rev. C
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
registered trademarks are the property of their respective owners.
Power Supply Voltage
5 V and 7.5 V to 13.2 V
5 V
5 V
5 V
5 V
5 V
5 V
5 V and 7.5 V to 13.2 V
5 V
No. of RS-232
Drivers
2
2
2
4
4
5
4
3
4
ADM231L–ADM234L/ADM236L–ADM241L
No. of RS-232
Receivers
2
2
2
0
3
3
4
5
5
CMOS RS-232 Drivers/Receivers
External
Capacitors
2
4
None
4
4
4
4
2
4
TTL/CMOS
TTL/CMOS
levels. The ADM231L and ADM239L are designed to operate
from 5 V and 12 V supplies. An internal +12 V to −12 V charge
pump voltage converter generates the −12 V supply.
The ADM2xxL is an enhanced upgrade to the AD2xx family. It
features lower power consumption, faster slew rate, and the
ability to operate with smaller (1 µF) capacitors.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
OUTPUTS
INPUTS
ADM236L TYPICAL OPERATING CIRCUIT
1
R1
R2
R3
+6.3V
1
2
+16V
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
T1
T2
T3
T4
1µF
1µF
OUT
OUT
OUT
EN
IN
IN
IN
IN
Low Power
Shutdown (SD)
No
No
No
No
Yes
No
No
No
Yes
© 2005 Analog Devices, Inc. All rights reserved.
C1+
C1–
C2+
C2–
+10V TO –10V
GND
+5V TO +10V
INVERTER
VOLTAGE
DOUBLER
VOLTAGE
Figure 1.
T1
T2
T3
T4
ADM236L
R1
R2
R3
TTL
Three-State EN
No
No
No
No
Yes
No
No
Yes
Yes
5 V-Powered
V
V+
V–
CC
+5V INPUT
www.analog.com
SD
T1
T2
T3
T4
R1
R2
R3
1µF
+6.3V
1µF
+16V
OUT
OUT
OUT
OUT
IN
IN
IN
RS-232
OUTPUTS
RS-232
INPUTS
No. of
Pins
14
16
20
16
24
24
24
24
28
+6.3V
1µF
2

Related parts for ADM231LAR

ADM231LAR Summary of contents

Page 1

FEATURES Single 5 V power supply Meets all EIA-232-E and V.28 specifications 120 kbps data rate On-board dc-to-dc converters ±9 V output swing with 5 V supply Small 1 µF capacitors Low power shutdown ≤1 µA ±30 V receiver input ...

Page 2

ADM231L–ADM234L/ADM236L–ADM241L TABLE OF CONTENTS Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Pin Configurations and Function Descriptions ........................... 5 Typical Performance Characteristics ............................................. 8 Typical Operating Circuits .............................................................. 9 REVISION HISTORY 4/05—Rev Rev. C Updated Format..................................................................Universal Removed ...

Page 3

SPECIFICATIONS ± 10% (ADM231L, ADM232L, ADM234L, ADM236L, ADM238L, ADM239L, ADM241L ADM237L 7 13.2 V (ADM231L and ADM239L 1.0 µF ceramic. All specifications T otherwise noted. Table ...

Page 4

ADM231L–ADM234L/ADM236L–ADM241L ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameter Rating V –0 V– +0 −14 V Input Voltages T –0 ...

Page 5

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS 14 C1 – – ADM231L 4 TOP VIEW 11 T2 OUT (Not to Scale OUT Figure 2. ...

Page 6

ADM231L–ADM234L/ADM236L–ADM241L OUT OUT OUT OUT ADM237L TOP VIEW (Not to Scale) GND ...

Page 7

Table 4. Pin Function Descriptions Mnemonic Function V Power Supply Input ± 10 ± 5% for ADM233L Internally Generated Positive Supply (+10 V nominal) on all parts, except ADM231L and ADM239L. ADM231L and ADM239L ...

Page 8

ADM231L–ADM234L/ADM236L–ADM241L TYPICAL PERFORMANCE CHARACTERISTICS –5 V– –10 – LOAD CURRENT (mA) Figure 12. Charge Pump V+ and V− vs. Current NEGATIVE SLEW POSITIVE ...

Page 9

TYPICAL OPERATING CIRCUITS +5V INPUT 1µ C1+ 1 1µF +12V TO –12V +16V V– VOLTAGE 2 C1– INVERTER TTL/CMOS 1 INPUTS OUT TTL/CMOS OUTPUTS R2 ...

Page 10

ADM231L–ADM234L/ADM236L–ADM241L V C1+ +5V TO +10V CC 1µF VOLTAGE +6.3V DOUBLER C1– V+ C2+ +10V TO –10V 1µF VOLTAGE V– +16V INVERTER C2– TTL/CMOS 1 INPUTS ...

Page 11

V CC C1+ +12V TO –12V 1µF VOLTAGE V+ +16V INVERTER C1– V– TTL/CMOS INPUTS OUT R2 R2 OUT TTL/CMOS R3 R3 OUTPUTS OUT R4 R4 OUT R5 ...

Page 12

ADM231L–ADM234L/ADM236L–ADM241L GENERAL INFORMATION The ADM231L–ADM234L/ADM236L–ADM241L family of RS-232 drivers/receivers is designed to solve interface problems by meeting the EIA-232-E specifications while using a single digital 5 V supply. The EIA-232-E standard requires that trans- mitters deliver ±5 V minimum on ...

Page 13

Transmitter (Driver) Section The drivers convert TTL/CMOS input levels into EIA-232-E output levels. With and driving a typical EIA-232-E CC load, the output voltage swing is ±9 V. Even under worst-case conditions, the drivers are guaranteed ...

Page 14

ADM231L–ADM234L/ADM236L–ADM241L OUTLINE DIMENSIONS 0.685 (17.40) 0.665 (16.89) 0.295 (7.49) 0.645 (16.38) 0.285 (7.24) 0.275 (6.99 0.100 (2.54) BSC 0.015 (0.38) MIN 0.180 (4.57) MAX 0.150 (3.81) 0.130 (3.30) SEATING PLANE 0.022 (0.56) 0.060 (1.52) 0.110 (2.79) ...

Page 15

MAX MIN 0.220 (5.59 PIN 0.060 (1.52) 0.200 (5.08) 0.840 (21.34) MAX 0.015 (0.38) MAX 0.150 (3.81) MIN 0.200 (5.08) 0.125 (3.18) SEATING 0.100 0.070 (1.78) PLANE (2.54) 0.023 ...

Page 16

ADM231L–ADM234L/ADM236L–ADM241L 1.290 (32.77) 1.150 (31.57 0.580 (14.73) 0.485 (12.32 PIN 1 0.015 (0.38) MIN 0.210 (5.34) MAX 0.200 (5.08) 0.115 (2.92) SEATING 0.100 0.022 (0.56) 0.070 (1.78) PLANE (2.54) 0.018 (0.46) 0.030 (0.76) BSC 0.014 (0.36) ...

Page 17

... ADM231LJRZ-REEL 1 0°C to 70°C ADM231LAN –40°C to +85°C ADM231LAQ –40°C to +85°C ADM231LAR –40°C to +85°C ADM231LAR-REEL –40°C to +85°C ADM232LJR 0°C to 70°C ADM232LJR-REEL 0°C to 70°C ADM232LJRZ 1 0°C to 70°C ADM232LJRZ-REEL7 1 0° ...

Page 18

ADM231L–ADM234L/ADM236L–ADM241L Model Temperature Range ADM238LAN –40°C to +85°C ADM238LAQ –40°C to +85°C ADM238LAR –40°C to +85°C ADM238LAR-REEL –40°C to +85°C ADM238LARZ 1 –40°C to +85°C ADM238LARZ-REEL 1 –40°C to +85°C ADM239LJN 0°C to 70°C ADM239LJR 0°C to 70°C ADM239LJR-REEL 0°C ...

Page 19

NOTES ADM231L–ADM234L/ADM236L–ADM241L Rev Page ...

Page 20

ADM231L–ADM234L/ADM236L–ADM241L NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C00070–0–4/05(C) Rev Page ...

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