ADM208EARU-REEL7

Overview

The ADM208EARU-REEL7 is an RS-232 line transceiver from the ADM2xxE family, manufactured by Analog Devices. It operates on a single 5 V supply and features four drivers and four receivers for full-duplex communication at data rates up to 230 kbps. The device includes internal charge pumps generating ±9 V swings and provides ±15 kV ESD protection compliant with IEC 1000-4-2 standards. It lacks shutdown or enable control pins. Packaged in a 24-lead TSSOP (RU), it requires four external 0.1 μF capacitors and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Complies with EU EMC directive 89/336/EEC for low emissions and high immunity
• Provides robust electrostatic discharge protection up to ±15 kV on all I/O lines
• Operates from a single 5 V power supply using internal voltage converters
• Supports high-speed data transmission up to 230 kbps

Applications

• Laptop computers
• Notebook computers
• Printers
• Peripherals
• Modems

Procurement Notes

Verify the specific ordering suffix RU-24 corresponds to the TSSOP package configuration required for your design. Confirm that the REEL7 designation matches your automated assembly equipment specifications. Ensure component authenticity through authorized distribution channels to guarantee compliance with the specified electrical parameters and reliability standards.

Selection Notes

Select this component when a four-channel RS-232 interface is required without shutdown functionality. It serves as a direct plug-in upgrade for older MAX2xx series designs. Verify that the application environment does not require active-low receiver monitoring during power-down states, as all receivers are disabled when the device is inactive.

Part Context

This part belongs to the ADM2xxE family of ruggedized RS-232 transceivers designed for harsh electrical environments. The family shares common architecture but varies in channel count and control features. The ADM208E specifically offers four drivers and four receivers without shutdown capabilities, distinguishing it from variants like the ADM211E or ADM213E which include enable and shutdown controls.

Replacement Considerations

The datasheet identifies the ADM2xxE family as a backward-compatible enhancement to earlier ADM2xx products. It is explicitly listed as a plug-in upgrade for MAX2xxE devices. Designers should verify pinout compatibility before substituting legacy components.