ADM202JRWZ

Overview

The ADM202JRWZ is a dual-channel RS-232 line driver and receiver manufactured by Analog Devices Inc. It operates from a single 5 V power supply and utilizes an on-chip charge pump to generate ±10 V output levels, meeting TIA/EIA-232-E specifications. The device supports data rates up to 120 kB with low power consumption of 2.5 mA typical. It features overvoltage protection allowing receiver inputs to withstand ±30 V and includes ESD protection exceeding 2 kV. The component is housed in a 16-lead wide SOIC (RW-16) package and functions within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Integrates high-efficiency on-chip charge pumps enabling the use of small 0.1 µF external capacitors for voltage conversion.
• Provides robust overvoltage protection on receiver inputs capable of withstanding continuous voltages exceeding ±30 V.
• Includes internal pull-up resistors on TTL/CMOS inputs and pull-down resistors on RS-232 inputs to manage unused states.

Applications

• Computer systems
• Peripheral devices
• Modems
• Printers
• Instruments

Procurement Notes

Verify that the ordering suffix Z indicates RoHS compliance when sourcing this component. Confirm the specific package variant RW-16 matches the required footprint for the design. Ensure the J suffix corresponds to the commercial temperature range suitable for the intended operating environment. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity.

Selection Notes

Select the ADM202JRWZ for applications requiring a single 5 V supply interface without external negative voltage generation. This wide-body SOIC package offers thermal advantages over narrow variants. Consider the 120 kB baud rate limit when designing for high-speed serial communication. Verify that the 0.1 µF capacitor requirement fits within the board space constraints of the target application.

Part Context

This component belongs to the ADM202 series of CMOS RS-232 drivers and receivers. The series is designed to replace older transceivers that require multiple power supplies. The J suffix denotes the commercial temperature grade, distinguishing it from industrial or automotive variants. The RW-16 package option provides a wider body compared to standard SOIC packages for improved thermal performance.

Replacement Considerations

The ADM202JRNZ serves as a pin-compatible alternative in the narrow SOIC package. Other models within the same family include the ADM202JNZ in a PDIP package. Substitutions should verify package dimensions and thermal characteristics match the existing layout requirements.