ADM2209EARUZ-REEL

Overview

The ADM2209EARUZ-REEL is a dual-port RS-232 transceiver in a 38-lead TSSOP package. It integrates six drivers and ten receivers, operating from a single +12 V supply via an onboard charge pump that eliminates the need for a negative rail. The device supports data rates up to 460 kbps under standard loads and up to 920 kbps with reduced capacitance. It features a dedicated standby supply pin (VSTBY) ranging from 3.15 V to 5.5 V, which maintains one receiver per port active for system wake-up capabilities while minimizing power consumption.

Feature Summary

• Integrates dual serial ports with onboard DC-to-DC conversion for single-supply operation
• Provides high electrostatic discharge protection on all I/O lines
• Includes a low-power standby mode with selective receiver activation
• Complies with EMC directives for emissions and immunity

Applications

• Desktop and portable personal computers
• Peripheral devices requiring dual serial connectivity
• Industrial modems and communication equipment

Procurement Notes

Verify the specific REEL suffix against the manufacturer's current ordering guide to confirm tape-and-reel packaging quantities. Ensure the component matches the RU-38 TSSOP footprint and industrial temperature range specifications required for the target design environment.

Selection Notes

Select this component when a single-chip solution for two full RS-232 ports is required without external negative voltage generation. It is suitable for designs needing robust ESD protection and fail-safe receiver outputs in electrically noisy environments.

Part Context

This part belongs to the ADM2209E series of rugged dual-port RS-232 line drivers. It is designed to replace traditional multi-component solutions by integrating the charge pump, drivers, and receivers into a compact surface-mount package.

Replacement Considerations

Direct replacements must match the 38-lead TSSOP package and dual-port architecture. Verify compatibility with existing PCB layouts due to the specific flow-through pin configuration.