LP339MX

Overview

The LP339MX is a quad differential comparator manufactured by Texas Instruments, housed in a 14-pin SOIC narrow surface-mount package. It operates on a single or dual power supply ranging from 2V to 36V. Key electrical characteristics include an input offset voltage of 5mV, an input bias current of 250nA, and a typical response time of 1.3µs. The device provides a rail-to-rail output with a per-channel output current capability of 6mA and an operating supply current of 2mA.

Feature Summary

• Integrates four independent high-gain differential comparators within a single integrated circuit.
• Features rail-to-rail output stages capable of interfacing directly with digital logic families such as TTL, CMOS, or MOS.
• Designed for low-power operation with minimal supply current consumption.

Applications

• Over-voltage and under-voltage detection circuits
• Threshold detection and level sensing applications
• Monitor circuits for system status indication

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm pinout compatibility and electrical specifications. Ensure the selected variant matches the required thermal performance and packaging constraints for the target application design.

Selection Notes

Select this component when a compact surface-mount solution is required for multi-channel comparison tasks. Evaluate the trade-off between the 1.3µs response time and the 6mA drive capability against system speed and load requirements compared to other series members.

Part Context

This part belongs to the LM/LP339 family of analog comparators. It shares functional similarities with through-hole variants like the LP339N but utilizes a surface-mount form factor suitable for automated PCB assembly processes.

Replacement Considerations

Direct pin-compatible substitutes include the LM339MX and LM339MX-NOPB. Verify that alternative manufacturers' equivalents meet the specific voltage and current ratings defined in the datasheet.