MAX211EEWI+

Drivers, Receivers, Transceivers Overview

The MAX211EEWI+ is a single-supply RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates four drivers and five receivers within a 28-pin SOIC package, supporting full-duplex communication at data rates up to 120 kbps. The device operates on a single +5V supply (4.5V to 5.5V) utilizing an internal dual charge pump to generate the required ±10V levels, requiring only four 0.1µF external capacitors. It features ±15kV ESD protection on all pins per the Human Body Model and includes shutdown and enable control functions for power management.

Drivers, Receivers, Transceivers Feature Summary

• Integrates four drivers and five receivers with internal charge pump circuitry for single +5V operation
• Provides ±15kV HBM ESD protection on all pins including serial port connection pins and ground
• Includes shutdown and enable control functions to minimize power consumption and support port multiplexing

Drivers, Receivers, Transceivers Applications

• Battery-powered equipment
• Hand-held equipment
• Portable diagnostics equipment

Drivers, Receivers, Transceivers Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm the specific suffix EE indicates the industrial temperature range (-40°C to +85°C) and the WI suffix denotes the 28-SOIC package. Ensure the ordering information matches the exact part number to avoid functional discrepancies related to voltage ranges or pin configurations.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring multiple transmit and receive lines in a compact surface-mount footprint. The integrated charge pump eliminates the need for bipolar supplies, simplifying board layout. Consider the shutdown feature for applications requiring low standby current. Verify that the 120 kbps data rate meets the system requirements and that the 28-pin SOIC package fits the available PCB space.

Drivers, Receivers, Transceivers Part Context

The MAX211E belongs to the MAX202E-MAX213E family of RS-232 transceivers designed for harsh environments. This family shares common characteristics such as high ESD protection and single-supply operation. The MAX211E specifically offers a higher channel count compared to standard 2-driver/2-receiver devices like the MAX202E, making it suitable for complex serial interfaces.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX211EWI+ is listed as a parameter equivalent substitute. Verify compatibility regarding the operating temperature range and package dimensions before replacement.