ADM237LJRZ-REEL

Overview

The ADM237LJRZ-REEL is a CMOS RS-232 transceiver from Analog Devices, designed for single 5 V operation. It integrates five drivers and three receivers in a 24-pin SOIC package. The device supports data rates up to 120 kbps and operates within a supply voltage range of 4.75 V to 5.25 V. Internal charge pumps generate ±10 V levels from the 5 V input using four external 1 µF capacitors. It features Schmitt trigger inputs with 0.65 V hysteresis and receiver inputs protected against ±30 V signals. The component operates over an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates internal DC-to-DC converters to enable full RS-232 functionality from a single 5 V power supply.
• Features Schmitt trigger receiver inputs with hysteresis to ensure noise immunity and error-free reception.
• Includes internal pull-up resistors on transmitter inputs and pull-down resistors on receiver inputs.
• Provides high impedance states for receiver outputs when disabled to facilitate bus sharing.

Applications

• Computers
• Peripherals
• Modems
• Printers
• Instruments

Procurement Notes

Verify that the ordering suffix matches the required packaging format. Confirm the specific pinout configuration aligns with the design requirements. Ensure the operating temperature range meets the environmental specifications. Check RoHS compliance status before finalizing procurement decisions.

Selection Notes

Select this part when five drivers and three receivers are required in a single package. Verify compatibility with TTL/CMOS logic levels at the interface points. Ensure the application does not require a low power shutdown mode, as this variant lacks that feature. Confirm that the 120 kbps data rate satisfies the system communication needs.

Part Context

This component belongs to the ADM2xxL family of line drivers and receivers. It serves as an enhanced upgrade to the AD2xx series, offering lower power consumption and faster slew rates. The ADM237L specifically provides a 5-driver and 3-receiver configuration suitable for complex serial communication interfaces.

Replacement Considerations

Public confirmed substitute part numbers: ADM237LANZ, ADM237LJNZ.