ADM238LANZ

Overview

The ADM238LANZ is a low-power, single-supply CMOS RS-232 transceiver from Analog Devices. It integrates four drivers and four receivers within a 24-pin package. The device operates on a single +5 V supply using internal charge pumps to generate the required ±10 V levels for RS-232 communication. It supports data rates up to 120 kbps and meets EIA-232-E specifications. The component features Schmitt trigger inputs for noise immunity and includes internal pull-up/pull-down resistors. It is designed for applications where dual voltage supplies are unavailable.

Feature Summary

• Integrates four drivers and four receivers for full RS-232 communication capability
• Operates from a single +5 V power supply utilizing internal DC-to-DC converters
• Features Schmitt trigger receiver inputs to ensure error-free reception in noisy environments
• Includes internal pull-up and pull-down resistors on input pins

Applications

• Computers
• Peripherals
• Modems
• Printers
• Instruments

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature range. Ensure the procurement channel provides valid traceability for the Analog Devices part number. Confirm RoHS compliance status as indicated in the official datasheet before finalizing orders.

Selection Notes

Select this component when a single +5 V supply is available but standard RS-232 voltage levels are required. It is suitable for systems needing four transmit and receive channels without external charge pump capacitors. Consider alternatives if shutdown functionality or higher data rates are necessary, as this specific variant lacks those features.

Part Context

This part belongs to the ADM2xxL family of line drivers and receivers designed for EIA-232-E and V.28 interfaces. It serves as an enhanced upgrade to the older AD2xx series, offering lower power consumption and faster slew rates. The family allows operation with smaller external capacitors compared to previous generations.

Replacement Considerations

Public confirmed substitute part numbers: ADM238LARZ, ADM238JRZ.