LM239DRG3

Overview

The LM239DRG3 is a quad general-purpose analog comparator manufactured by Texas Instruments. It features four independent differential comparators in a 14-SOIC surface-mount package. The device operates on a single supply voltage ranging from 2 V to 30 V, or dual supplies of ±1 V to ±15 V. Key electrical specifications include a maximum input offset voltage of 5 mV at 30 V, an input bias current of 0.25 µA at 5 V, and a typical output current capability of 20 mA. The quiescent supply current is typically low, with a maximum static current of 2 mA. The component supports CMOS and TTL logic outputs and functions within an operating temperature range of -25°C to +85°C.

Feature Summary

• Integrates four independent high-gain differential comparators for versatile signal processing.
• Features open-collector outputs compatible with various logic families including CMOS and TTL.
• Operates efficiently with low power consumption suitable for battery-powered applications.
• Designed for wide single-supply or split-supply voltage operation.

Applications

• Temperature sensing circuits
• Voltage level detection systems
• Peak hold circuits

Procurement Notes

Verify the specific ordering suffix DRG3 to confirm the tape-and-reel packaging format and lead-free status. Confirm that the component matches the required SOIC-14 footprint and pinout configuration for your PCB layout. Ensure the selected variant meets the necessary RoHS compliance standards for your manufacturing process. Cross-reference the manufacturer part number against official distributor catalogs to avoid counterfeit components.

Selection Notes

Select this component when a quad comparator configuration is required in a compact surface-mount package. Consider the LM239DRG3 for designs needing wide supply voltage flexibility and compatibility with standard digital logic levels. Evaluate the input offset voltage and bias current specifications against your signal integrity requirements. Compare performance metrics with similar family members if different channel counts or temperature ranges are needed.

Part Context

The LM239 series belongs to Texas Instruments' lineup of analog comparators, offering a cost-effective solution for general-purpose comparison tasks. The LM239DRG3 specifically denotes the green (RoHS compliant) version in a reel package. This part shares functional similarities with other LMx39 devices but is distinct in its specific electrical tolerances and packaging options provided by the manufacturer.

Replacement Considerations

LM293DR is listed as a manufacturer substitute for this component. Verify pinout compatibility and electrical parameter equivalence before swapping. Other LM239 variants may differ in packaging or temperature range.