ADM202EARN-REEL

Overview

The ADM202EARN-REEL is a dual-channel RS-232 transceiver manufactured by Analog Devices Inc. It operates from a single 5 V power supply (4.5 V to 5.5 V) and supports data rates up to 230 kbps. The device integrates charge-pump circuitry requiring four external 0.1 µF capacitors to generate internal ±10 V rails. It features robust ESD protection rated at ±15 kV for air discharge and ±8 kV for contact discharge, along with EFT immunity of ±2 kV. The component is housed in a 16-lead SOIC package and includes Schmitt-trigger inputs with 0.65 V hysteresis.

Feature Summary

• Compliant with EU EMC directives including EN55022 emissions standards
• Integrated high-speed clamping diodes protect I/O lines against electrostatic discharge and electrical fast transients
• Internal voltage doubler and inverter eliminate the need for external negative supply generation
• Schmitt-trigger receiver inputs provide noise immunity and error-free reception on slow transition signals

Applications

• General-purpose RS-232 data links
• Portable instruments requiring low power consumption
• PDAs and handheld devices

Procurement Notes

Verify that the ordering suffix matches the required tape and reel packaging configuration. Confirm the specific temperature grade and lead finish requirements align with the project specifications before finalizing the purchase order.

Selection Notes

Select this component when upgrading legacy MAX202E or ADM232L designs due to its pin-compatible nature. Ensure the application environment requires compliance with strict electromagnetic interference limits and high electrostatic discharge tolerance levels.

Part Context

This part belongs to the ADM202E/ADM1181A family of robust RS-232 line drivers and receivers. It serves as an enhanced replacement for older generation charge-pump transceivers, offering improved EMC performance and higher data rate capabilities while maintaining compatibility with standard interface protocols.

Replacement Considerations

Public confirmed substitute part numbers include ADM202EARNZ and ADM202EARUZ.