MAX3190EEUT+T

Overview

The MAX3190EEUT+T is a single RS-232 transmitter manufactured by Analog Devices Inc. (Maxim Integrated) housed in a SOT23-6 package. It operates from dual supplies ranging from ±7.5V to ±12V, consuming 250µA positive and 125µA negative supply current during active mode. The device guarantees data transmission up to 460kbps with worst-case loads of 3kΩ in parallel with 1000pF. A shutdown input reduces supply current to a maximum of 1µA and forces the output into a high-impedance state. The operating temperature range spans from -40°C to +85°C.

Feature Summary

• ESD protection on the transmitter output rated at ±15kV Human Body Model and ±8kV IEC 1000-4-2 Contact Discharge
• Shutdown pin functionality that minimizes power consumption and isolates the signal line
• Standard inverting output converting CMOS/TTL logic levels to RS-232 signals without external components

Applications

• Set-Top Boxes
• Telecommunications equipment
• Diagnostic ports
• Networking equipment
• Hand-held devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required ESD protection level and packaging format. Ensure supply voltage rails align with the specified ±7.5V to ±12V operational requirements for proper RS-232 compliance.

Selection Notes

Select this component when space constraints necessitate a compact SOT23-6 footprint for serial communication interfaces. Consider the low supply current draw for battery-operated applications requiring minimal power usage. Verify that the system provides the necessary dual polarity power supplies or utilizes compatible internal charge pumps from other Maxim RS-232 devices.

Part Context

This part belongs to the MAX3190 family of single RS-232 transmitters designed for cost-sensitive and space-limited environments. It complements other Maxim interface solutions by providing a standalone transmitter option with integrated ESD protection, eliminating the need for additional discrete protection components in harsh electrical environments.

Replacement Considerations

The MAX3190E serves as the base variant within this product line. Designers should verify compatibility with existing circuit designs if substituting between variants, ensuring that pin configurations and electrical characteristics remain consistent across the family.