ADM211EARSZ-2REEL

Overview

The ADM211EARSZ-2REEL is a quad line transceiver manufactured by Analog Devices Inc., designed for RS-232 communication applications. It operates on a single +5 V power supply and features four drivers and five receivers, supporting full-duplex data transmission at rates up to 230 kb/s. The device utilizes an SSOP-28 package and includes onboard DC-to-DC converters to generate ±9 V output swings without external components. Key electrical specifications include a minimum operating voltage of 4.5 V, a maximum of 5.5 V, and a typical operating current of 13 mA. It provides ±15 kV ESD protection on RS-232 lines and supports shutdown modes.

Feature Summary

• Integrated onboard DC-to-DC converters eliminate the need for external charge pump capacitors.
• Provides ±15 kV human-body model ESD protection on RS-232 transceiver lines.
• Supports low-power operation with dedicated shutdown pins to minimize current consumption.
• Ensures signal integrity through Schmitt-trigger inputs on all receivers.

Applications

• Industrial control systems requiring robust serial communication interfaces.
• Portable instrumentation and battery-powered devices utilizing single-supply operation.
• Data acquisition systems interfacing with modems or PC-based controllers.
• Embedded systems needing high ESD immunity in electrically noisy environments.

Procurement Notes

Verify the specific suffix '2REEL' against official Analog Devices documentation to confirm reel quantity and tape-and-reel specifications. Ensure compatibility with standard SSOP-28 footprints during PCB layout. Confirm RoHS compliance status directly from the manufacturer's latest datasheet revision, as packaging variations may affect regulatory markings.

Selection Notes

Select this component when designing circuits that require multiple RS-232 channels within a compact SSOP-28 footprint. It is suitable for applications demanding high ESD tolerance and simplified power management due to integrated charge pumps. Compare pinout configurations with alternative transceivers if migrating from existing designs to ensure direct compatibility without schematic modifications.

Part Context

This part belongs to the ADM211E series of RS-232 transceivers from Analog Devices. The series is characterized by its ability to operate from a single 5 V supply while generating the higher voltages required for RS-232 standards. The 'EARSZ' designation typically indicates an extended temperature range and lead-free construction, while the suffix denotes the specific reel packaging format.

Replacement Considerations

Direct pin-compatible alternatives within the same family include the ADM211EARZ and ADM211EARSZ. For similar functionality with different package options, consider the ADM213 series, which offers additional receiver activity during shutdown states. Verify electrical parameters such as data rate and ESD ratings before substituting.