High Speed, 5 V, 0.1 µF
CMOS RS-232 Driver/Receiver
Data Sheet
ADM202
Rev. B Document Feedback
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2016 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
120 kB transmission rate
Small (0.1 µF) charge pump capacitors
Single 5 V power supply
Meets TIA/EIA-232-E and V.28 specifications
2 drivers and 2 receivers
On-board dc-to-dc converters
±9 V output swing with 5 V supply
Low power BiCMOS: 2.5 mA I
CC
±30 V receiver input levels
APPLICATIONS
Computers
Peripherals
Modems
Printers
Instruments
TYPICAL APPLICATION CIRCUIT
+
ADM202
0.1µF
6.3V
0.1µF
6.3V
0.1µF
6.3V
0.1µF
16V
0.1µF
16V
C1+
C1–
C2–
C2+
T1
IN
T1
T2
IN
R1
IN
R2
IN
T1
OUT
T2
OUT
T2
TTL/CMOS
INPUTS
1
RS-232
OUTPUTS
R1
OUT
R1
R2
OUT
TTL/CMOS
OUTPUTS
RS-232
INPUTS
2
R2
V–
+10V TO –10V
VOLTAGE
INVERTER
5V INPUT
V+
V
CC
+5V TO +10V
VOLTAGE
DOUBLER
GND
1
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
+
+
+
+
1
3
4
5
11
10
12
9
16
2
6
14
7
13
15
8
00065-001
Figure 1.
GENERAL DESCRIPTION
The ADM202 is a 2-channel RS-232 line driver/receiver pair
designed to operate from a single 5 V power supply. A highly
efficient on-chip charge pump design permits RS-232 levels to
be developed using charge pump capacitors as small as 0.1 µF.
This converter generates ±10 V RS-232 output levels.
The ADM202 meets or exceeds the TIA/EIA-232-E a n d V. 2 8
specifications. Fast driver slew rates permit 120 kB operation,
and high drive currents allow extended cable lengths.
An epitaxial BiCMOS construction minimizes power consump-
tion to 10 mW and guards against latch-up. Overvoltage
protection is provided, allowing the receiver inputs to withstand
continuous voltages in excess of ±30 V. In addition, all pins
contain ESD protection to levels greater than 2 kV.
The ADM202 is available in a 16-lead PDIP and both narrow
and wide 16-lead SOIC packages.
ADM202* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
COMPARABLE PARTS
View a parametric search of comparable parts.
DOCUMENTATION
Data Sheet
ADM202: High Speed, 5 V, 0.1 µF CMOS RS-232 Driver/
Receiver Data Sheet
SOFTWARE AND SYSTEMS REQUIREMENTS
ADI RS-485/RS-422 Cross Reference Guide
RS-232 Transceivers Cross Reference Guide
TOOLS AND SIMULATIONS
ADM202/ADM202E IBIS Model
REFERENCE MATERIALS
Solutions Bulletins & Brochures
RS-232 Transceivers Applications Bulletin (Summer 2008)
Technical Articles
Interface Primer
DESIGN RESOURCES
ADM202 Material Declaration
PCN-PDN Information
Quality And Reliability
Symbols and Footprints
DISCUSSIONS
View all ADM202 EngineerZone Discussions.
SAMPLE AND BUY
Visit the product page to see pricing options.
TECHNICAL SUPPORT
Submit a technical question or find your regional support
number.
DOCUMENT FEEDBACK
Submit feedback for this data sheet.
This page is dynamically generated by Analog Devices, Inc., and inserted into this data sheet. A dynamic change to the content on this page will not
trigger a change to either the revision number or the content of the product data sheet. This dynamic page may be frequently modified.
ADM202 Data Sheet
Rev. B | Page 2 of 10
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Typical Application Circuit ............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 4
ESD Caution .................................................................................. 4
Pin Configuration and Function Descriptions ............................. 5
Typical Performance Characteristics ..............................................6
Theory of Operation .........................................................................7
Applications Information .................................................................8
Charge Pump DC-to-DC Voltage Converter ............................8
TTL/CMOS to RS-232 Transmitters (Drivers) .........................8
RS-232 to TTL/CMOS Receivers ................................................8
Outline Dimensions ..........................................................................9
Ordering Guide .......................................................................... 10
REVISION HISTORY
8/2016Rev. A to Rev. B
Updated Format .................................................................. Universal
Deleted ADM203 ................................................................ Universal
Changes to Typical Application Circuit Section Heading........... 1
Deleted ADM203 Functional Block Diagram Figure;
Renumbered Sequentially ................................................................ 1
Changes to Features Section and General Description Section . 1
Deleted ADM203 Pin Configuration Figure and Figure 1 ......... 3
Changed T
IN
to Tx
IN
....................................................... Throughout
Changes to Table 2 ............................................................................. 4
Changes to Table 3 ............................................................................. 5
Changes to Theory of Operation Section....................................... 7
Changes to TTL/CMOS to RS-232 Transmitters (Drivers)
Section and RS-232 to TLL/CMOS Receivers Section ................. 8
Updated Outline Dimensions .......................................................... 9
Changes to Ordering Guide .......................................................... 10
1/2001Rev. 0 to Rev. A

ADM202JRWZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
RS-232 Interface IC 2 CH 15KV ESD Protected IC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union