ADM232LJRZ

Overview

The ADM232LJRZ is a CMOS RS-232 transceiver from the ADM2xxL family, designed for EIA-232-E and V.28 interfaces using a single 5 V supply. It integrates two drivers and two receivers with on-board dc-to-dc converters generating ±10 V levels. The device supports data rates up to 120 kbps and operates within a commercial temperature range of 0°C to +70°C. It requires four external 1 µF capacitors for charge pump operation and draws 6.0 mA at no load.

Feature Summary

• Integrates dual charge pump voltage converters to generate required RS-232 levels from a single 5 V source
• Includes internal pull-up and pull-down resistors on inputs to define logic states when unconnected
• Features Schmitt trigger receiver inputs to ensure noise immunity and error-free reception

Applications

• Computers
• Peripherals
• Modems
• Printers
• Instruments

Procurement Notes

Verify that the ordering suffix 'JRZ' corresponds to the SOIC-16 package and industrial or commercial grade availability as specified in the manufacturer's current ordering guide. Confirm RoHS compliance status directly with Analog Devices documentation before procurement.

Selection Notes

Select this component when a single 5 V supply is available and external high-voltage sources are absent. It is suitable for applications requiring two full-duplex channels without shutdown control. Ensure PCB layout accommodates four 1 µF capacitors for the charge pumps.

Part Context

This part belongs to the ADM2xxL enhanced upgrade series, offering lower power consumption and faster slew rates compared to the legacy AD2xx family. It eliminates the need for 12 V supplies commonly used in older RS-232 designs, simplifying power architecture for modern 5 V digital systems.

Replacement Considerations

ADM232EJRZ