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RS-232 Transceiver


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Overview of ADM202JRN

The ADM202JRN is a dual RS-232 line driver/receiver IC with a high-speed data rate and low power consumption. It is designed to convert TTL/CMOS logic levels to RS-232 voltage levels and vice versa, making it suitable for interfacing microcontrollers with RS-232 devices.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • V+ : Positive Power Supply
  • V- : Negative Power Supply
  • GND : Ground Connection
  • RIN1: Input for Receiver Channel 1
  • ROUT1: Output for Receiver Channel 1
  • RIN2: Input for Receiver Channel 2
  • ROUT2: Output for Receiver Channel 2
  • TIN1: Input for Transmitter Channel 1
  • TOUT1: Output for Transmitter Channel 1
  • TIN2: Input for Transmitter Channel 2
  • TOUT2: Output for Transmitter Channel 2

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the ADM202JRN IC for a visual representation.

Key Features

  • Dual RS-232 Line Driver/Receiver: Provides two channels for bi-directional communication.
  • High-Speed Data Rate: Supports data rates up to [Speed] bps, suitable for fast serial communication.
  • Low Power Consumption: Features a low-power mode for efficient energy usage.
  • Wide Voltage Supply Range: Operates from [Voltage Range], making it compatible with various systems.
  • ESD Protection: Includes built-in ESD protection for enhanced reliability.

Note: For detailed technical specifications, please refer to the ADM202JRN datasheet.


  • Industrial Automation: Ideal for use in industrial automation systems requiring RS-232 communication.
  • Data Acquisition: Suitable for data acquisition systems that interface with RS-232 sensors.
  • Embedded Systems: Used in embedded systems for communication with RS-232 peripherals.


The ADM202JRN is a versatile IC that facilitates communication between microcontrollers and RS-232 devices by converting logic levels effectively.

Usage Guide

  • Power Supply: Connect V+ and V- to the respective power supplies as per the datasheet recommendations.
  • Data Connections: Hook up the transmit and receive pins to the corresponding lines in the RS-232 network.
  • Mode Control: Utilize the control pins to manage the device mode effectively.

Frequently Asked Questions

Q: Is the ADM202JRN suitable for battery-powered applications?
A: Yes, the ADM202JRN's low power consumption makes it suitable for battery-powered applications demanding RS-232 connectivity.


For similar functionalities, consider these alternatives to the ADM202JRN:

  • MAX232: A popular RS-232 transceiver IC offering similar functionality to the ADM202JRN.
  • LT1785: This IC from Linear Technology provides dual RS-232 transceiver functionality with low power consumption.


The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category RS-232 Interface IC RoHS N
Mounting Style SMD/SMT Package / Case SOIC-16
Series ADM202 Function Transceiver
Data Rate 120 kb/s Number of Drivers 2 Driver
Number of Receivers 2 Receiver Supply Voltage - Max 5.5 V
Supply Voltage - Min 4.5 V Operating Supply Current 6 mA
Minimum Operating Temperature 0 C Maximum Operating Temperature + 70 C
ESD Protection ESD Protection Brand Analog Devices
Height 1.5 mm (Max) Length 10 mm (Max)
Number of Transceivers 1 Transceiver Operating Supply Voltage 5 V
Output Type Single-Ended Product RS-232 Transceivers
Product Type RS-232 Interface IC Protocol Supported RS-232
Receiver Signal Type Single-Ended Shutdown Without Shutdown
Factory Pack Quantity 48 Subcategory Interface ICs
Supply Type Single Supply Width 4 mm (Max)
Unit Weight 0.023492 oz

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