MAX3042BCWE

Overview

The MAX3042BCWE is a quad RS-422/RS-485 transmitter manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single 5V supply and supports data rates up to 20 Mb/s with a propagation delay of 23 ns. The device features 10 kV ESD protection and draws 1 mA of quiescent current. It dissipates 762 mW of power and functions within an industrial temperature range of -40°C to +85°C. Packaged in a 16-pin SO-Wide format, it serves as a high-speed driver for differential communication networks.

Feature Summary

• Provides four independent transmitters for RS-422 and RS-485 differential signaling applications.
• Integrates robust 10 kV electrostatic discharge protection on all inputs and outputs.
• Operates efficiently with low quiescent current consumption suitable for battery-powered systems.

Applications

• Industrial automation control networks
• Building automation and security systems
• Data acquisition systems requiring long-distance communication

Procurement Notes

Verify the specific suffix 'C' against official documentation to confirm the commercial temperature grade (-40°C to +85°C). Ensure the package matches the SO-Wide-16 footprint requirements for your PCB layout. Cross-reference the manufacturer part number with authorized distributors to confirm current availability status.

Selection Notes

Select this component when designing systems requiring four simultaneous transmit channels without integrated receivers. Compare the 20 Mb/s speed against lower-speed alternatives if bandwidth is not critical. Verify that the 5V logic levels align with your microcontroller or DSP interface voltages before finalizing the design.

Part Context

This device belongs to the MAX3042 series of high-speed RS-422/RS-485 transceivers. It complements receiver-only parts like the MAX3096 to create full duplex links. The BCWE variant specifically denotes the commercial temperature range and surface-mount packaging, distinguishing it from military or extended temperature grades.

Replacement Considerations

The MAX3040CWE+ offers similar functionality but operates at a lower 250 kbps data rate. For higher performance needs, consider the MAX3042BEWE+T which shares the same electrical characteristics but may differ in tape-and-reel packaging specifications.