MAX3161EAG+

Overview

The MAX3161EAG+ is a multiprotocol transceiver from Analog Devices/Maxim Integrated, housed in a 24-pin SSOP package. It operates within a supply voltage range of +3.0V to +5.5V and supports an industrial temperature range of -40°C to +85°C. The device features pin-programmable configurations for either a 2TX/2RX RS-232 interface or a single RS-485/RS-422 transceiver. It incorporates dual charge pumps to generate internal voltages without requiring bipolar supplies. Data rates reach up to 1Mbps in RS-232 mode and 10Mbps in RS-485/RS-422 mode when slew-rate limiting is disabled.

Feature Summary

• Pin-programmable flexibility allows configuration as either a 2TX/2RX RS-232 interface or a single RS-485/RS-422 transceiver.
• Integrated dual charge pump circuitry eliminates the need for external bipolar power supplies.
• Pin-selectable transmitter slew rates minimize electromagnetic interference and reduce cable reflections.
• True fail-safe receiver design prevents false transitions during input short circuits or open conditions.

Applications

• Point-of-Sales Equipment
• Industrial Controls
• RS-232 to RS-485 Interface Converters

Procurement Notes

Verify the specific ordering suffix 'EAG+' against official manufacturer documentation to confirm the extended temperature range (-40°C to +85°C) and lead-free/RoHS compliance status. Ensure the 24-pin SSOP package dimensions match your board layout requirements before finalizing procurement orders.

Selection Notes

Select the MAX3161EAG+ when a single UART must be multiplexed across two distinct interface buses using shared digital I/O pins. This component is suitable for designs requiring separate physical outputs for RS-232 and RS-485 protocols while maintaining a compact footprint compared to discrete solutions.

Part Context

This part belongs to the MAX3160/MAX3161/MAX3162 family of low-power multiprotocol transceivers. While the MAX3160 shares common I/O pins and the MAX3162 offers simultaneous independent operation, the MAX3161 provides a balanced architecture with separate driver/receiver outputs but shared logic inputs, optimized for protocol switching applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.