LM239DR2G

Overview

The LM239DR2G is a single-supply quad comparator manufactured by onsemi in a 14-pin SOIC package. It operates within a supply voltage range of 3.0 V to 36 V or split supplies of ±1.5 V to ±18 V. The device features an open-collector output capable of sinking up to 16 mA, with a typical response time of 1.3 µs and a maximum input bias current of 250 nA. Designed for level detection and sensing applications, it supports both TTL and CMOS logic compatibility.

Feature Summary

• Supports single and split power supply configurations
• Features low input bias current for high-impedance sensing
• Includes ESD protection structures on inputs
• Outputs are compatible with TTL and CMOS logic families

Applications

• Level detection circuits
• Low-level sensing systems
• Memory applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and shipping configuration. Ensure compliance with RoHS standards and lead-free requirements as specified in the datasheet. Confirm that the component meets the required operating temperature range for the intended application environment before finalizing procurement.

Selection Notes

Select this component when a quad comparator with wide supply voltage flexibility is required. Consider the open-collector output structure for interfacing with different logic levels. Evaluate the 1.3 µs response time against system speed requirements. Verify thermal dissipation capabilities within the SOIC-14 package constraints for the expected load conditions.

Part Context

This part belongs to the LM239 series of single-supply quad comparators from onsemi. It shares functional similarities with the LM339 but is rated for a wider operating temperature range starting at -25°C. The DR2G suffix indicates a tape and reel packaging format suitable for automated surface-mount assembly processes.

Replacement Considerations

LM339DR2G