LM239AQDRQ1

Overview

The LM239AQDRQ1 is an automotive catalog quad differential comparator housed in a 14-SOIC package. It operates within a supply voltage range of 2 V to 30 V and supports output types compatible with CMOS and TTL logic families. The device features a maximum response time of 300 ns and delivers up to 16 mA of output current per channel. It maintains a typical input offset voltage of 3 mV and an input bias current of 250 nA. The component is qualified under AEC-Q100 standards and functions reliably across an extended temperature range from -40 °C to +125 °C.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for reliability
• Quad differential configuration providing four independent comparison channels
• Wide single-supply operating voltage capability supporting diverse power architectures

Applications

• Automotive electronic control units requiring high-reliability signal processing
• Voltage monitoring systems within vehicle power distribution networks
• Temperature sensing interfaces utilizing differential sensor outputs

Procurement Notes

Verify the specific suffix 'QDRQ1' to confirm automotive grade classification and SOIC-14 packaging. Ensure the procurement order explicitly references the AEC-Q100 qualification status required for automotive integration. Cross-reference the manufacturer datasheet to validate the exact pinout and thermal characteristics for the specific manufacturing lot before finalizing design implementation.

Selection Notes

Select this component when designing circuits that demand automotive reliability alongside wide supply voltage tolerance. The open-collector output structure allows flexible interfacing with various logic levels. Consider the 300 ns propagation delay for timing-sensitive applications. Verify that the 16 mA sink current capability meets the load requirements of the downstream circuitry without external buffering.

Part Context

This part belongs to the LM239 family of analog comparators, specifically tailored for automotive environments. It shares functional similarities with standard industrial comparators but includes enhanced testing and documentation to meet stringent automotive quality standards. The device serves as a robust solution for threshold detection in harsh electromagnetic and thermal conditions found in modern vehicles.

Replacement Considerations

The LM239AQDRG4Q1 is listed as a related alternative within the same product line. Verify pin compatibility and electrical specifications against the primary datasheet before substitution. Ensure any replacement maintains the required AEC-Q100 qualification level for the target application.