ADM241LARZ-REEL

Overview

The ADM241LARZ-REEL is a CMOS RS-232 transceiver from Analog Devices, housed in a 28-pin SOIC package. It operates on a single 5 V supply and integrates internal charge pumps to generate ±10 V levels for EIA-232-E compliance. The device provides four drivers and five receivers with a data rate of 120 kbps. Key features include a low power shutdown mode consuming less than 5 µW, an active-low enable input for receiver control, and ±30 V receiver input protection.

Feature Summary

• Integrates dual charge pump converters to generate required voltage levels from a single 5 V supply
• Includes a low power shutdown mode that significantly reduces current consumption for battery applications
• Features an active-low enable input to place receiver outputs in a high impedance state

Applications

• Battery-powered equipment requiring minimal standby power
• Microprocessor systems sharing common data lines
• Industrial instruments and peripherals

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure the reel quantity matches project requirements. Cross-reference the part number with the latest datasheet revision to confirm pinout compatibility and electrical specifications before procurement.

Selection Notes

Select this component when a system requires multiple transmitter and receiver channels within a single RS-232 interface. It is suitable for designs constrained by space or power budgets due to its integrated charge pumps and shutdown capability. Verify that the 120 kbps data rate meets the application's communication speed requirements.

Part Context

This part belongs to the ADM2xxL family of line drivers and receivers designed for EIA-232-E and V.28 interfaces. The L-series represents an enhanced upgrade offering lower power consumption and faster slew rates compared to previous generations. It allows operation without external ±12 V supplies, simplifying circuit design.

Replacement Considerations

ADM236L: Offers similar functionality but with three receivers instead of five.