MAX3190EUT

Overview

The MAX3190EUT is a low-power, single RS-232 transceiver manufactured by Analog Devices Inc. (Maxim Integrated). It operates from a single +5V supply and integrates charge pump circuitry to generate the necessary voltages for RS-232 communication without external components. The device features one driver and one receiver, supporting data rates up to 30kbps. It is housed in an 8-pin µMAX package designed for surface-mount applications. Key electrical specifications include a minimum operating voltage of 4.5V and a maximum of 5.5V, with a typical quiescent current of 160µA. The component supports full-duplex operation and includes ESD protection rated at 15kV.

Feature Summary

• Integrates charge pump circuitry for single-supply operation
• Provides 15kV ESD protection on all pins
• Supports full-duplex RS-232 communication
• Operates within standard +5V logic levels

Applications

• Portable battery-powered equipment requiring serial communication
• Industrial control systems with limited board space
• Modems and fax machines
• Point-of-sale terminals

Procurement Notes

Verify the specific suffix 'EUT' corresponds to the 8-pin µMAX package and tape-and-reel delivery format when sourcing. Confirm RoHS compliance status as manufacturing processes may evolve. Ensure the supplier provides original manufacturer documentation to validate authenticity. Check for any obsolescence notices or lifecycle changes prior to final procurement decisions.

Selection Notes

Select this component when a single-channel RS-232 interface is required in a compact surface-mount footprint. It is suitable for designs constrained by power consumption due to its low standby current. Compare against other Maxim RS-232 devices if higher data rates or multiple channels are needed. Ensure the application environment stays within the specified temperature range for reliable performance.

Part Context

The MAX3190 belongs to the Maxim Integrated family of low-power RS-232 transceivers. It is part of a broader series that includes variants with different pin counts and feature sets. This specific model focuses on providing essential RS-232 functionality in the smallest possible package size available from the manufacturer during its production cycle.

Replacement Considerations

Direct pin-compatible replacements within the same family should be verified against official cross-reference lists. Alternative single-driver RS-232 transceivers from other manufacturers may require level-shifting adjustments. Always confirm package dimensions and thermal characteristics before substituting.