MAX211ECAI+

Drivers, Receivers, Transceivers Overview

The MAX211ECAI+ is a single-supply RS-232 transceiver from Analog Devices/Maxim Integrated, operating on a +5V supply with integrated charge pump circuitry. It features four drivers and five receivers, supporting data rates up to 120kbps while meeting EIA/TIA-232E specifications. The device provides ±15kV HBM ESD protection and includes a low-power shutdown mode that reduces supply current to typically 1μA. It is housed in a 28-pin SSOP package and operates within an industrial temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated charge pump eliminates the need for external bipolar power supplies
• High electrostatic discharge protection rated at ±15kV Human Body Model
• Low-power shutdown mode significantly reduces quiescent current consumption

Drivers, Receivers, Transceivers Applications

• Battery-powered equipment requiring extended operational life
• Hand-held diagnostic tools and portable instruments
• Portable computers and notebook systems with frequent port connections

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'CAI+' against official documentation to confirm the SSOP package type and the -40°C to +85°C industrial temperature rating. Confirm RoHS compliance status through manufacturer datasheets or authorized distributor declarations before finalizing procurement plans.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring multiple receiver inputs alongside standard driver outputs. The inclusion of internal pull-up resistors on driver inputs simplifies interface design by preventing floating states on unused channels. Ensure adequate decoupling capacitors are placed near VCC to manage charge pump noise effectively.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX202E-MAX213E family of RS-232 transceivers designed for robust communication in harsh environments. The 'E' designation indicates enhanced ESD protection capabilities compared to standard versions. The MAX211 variant specifically offers a configuration optimized for applications needing five receiver lines for complex handshake protocols.

Drivers, Receivers, Transceivers Replacement Considerations

MAX211EEAI+ (Industrial Temp, SSOP)

Drivers, Receivers, Transceivers FAQ

How does the shutdown mode affect the receiver outputs?

In shutdown mode, all receiver outputs enter a high-impedance state, effectively disconnecting them from the logic circuitry while maintaining minimal power consumption.

What is the function of the internal pull-up resistors on the driver inputs?

The internal 400kΩ pull-up resistors force unused driver outputs low, preventing undefined states and reducing the need for external components on unconnected transmitter lines.

Can the V+ and V- pins be used as power supplies for other components?

Yes, small amounts of power can be drawn from V+ and V-, though doing so may reduce driver output swing and noise margins; larger capacitors help maintain performance under load.