JM38510/11201BCA

Overview

The JM38510/11201BCA is a military-grade quad differential comparator manufactured by Texas Instruments under the LM139-MIL series. It operates from a single supply of 2 V to 36 V or dual supplies of ±1 V to ±18 V, with tested limits up to 30 V and ±15 V respectively. The device features low supply current drain of 0.8 mA typical, independent of voltage. Electrical characteristics include an input offset voltage of 2 mV typical at 25°C and 9 mV max over the full temperature range. It supports a common-mode input voltage range including ground and offers open-collector outputs compatible with TTL, MOS, and CMOS logic families.

Feature Summary

• Four independent precision voltage comparators designed for wide single or dual supply operation
• Input common-mode voltage range includes ground potential
• Open-collector outputs allow wired-AND functionality and logic level translation
• Characterized for full military temperature range from -55°C to +125°C

Applications

• Industrial control systems
• Automotive infotainment and instrument clusters
• Body control modules
• Power supervision circuits
• Oscillators and peak detectors

Procurement Notes

Verify that the component is sourced as a production part compliant with MIL-PRF-38535 standards. Confirm the package type matches the required CDIP-14 specification. Ensure all parameters are tested as per military requirements rather than standard production processing. Validate authenticity through authorized distributors to guarantee reliability in safety-critical or harsh environment applications.

Selection Notes

Select this component when high reliability and wide temperature tolerance are required. It is suitable for designs needing ground-referenced inputs with single-supply operation. The open-collector output facilitates interfacing with various logic families. Consider thermal management if operating near maximum junction temperatures. Verify that the supply voltage does not exceed the absolute maximum ratings during transient conditions.

Part Context

This part belongs to the LM139-MIL family of quad differential comparators. It shares functional similarities with commercial variants like the LM139 but meets stricter military specifications. The device is available in multiple packages including CDIP, CFP, LCCC, and SOIC. It is distinct from operational amplifiers due to its optimized switching speed and open-collector output structure.

Replacement Considerations

LM139JB serves as a direct equivalent within the same manufacturer's portfolio offering identical electrical performance in a ceramic dual in-line package.