LM239ADRG4

Overview

The LM239ADRG4 is a quad differential comparator manufactured by Texas Instruments in a surface-mount package. It features four independent high-gain comparators designed for versatile signal processing applications. The device operates with a wide single-supply voltage range, allowing compatibility with various logic families. Key electrical characteristics include low input bias current and high common-mode rejection ratio. The component is optimized for cost-effective designs requiring precise voltage threshold detection without the need for external compensation.

Feature Summary

• Quad differential comparator architecture providing four independent comparison channels
• Wide single-supply operating voltage range compatible with standard logic levels
• High common-mode rejection ratio ensuring accurate threshold detection
• Low input bias current minimizing loading effects on source circuits

Applications

• Simple analog-to-digital conversion circuits
• Over-voltage and under-voltage protection systems
• Window detector configurations for monitoring signal ranges
• Peak hold circuits for waveform analysis

Procurement Notes

Verify the exact ordering suffix to confirm the specific tape-and-reel quantity and packaging variant. Ensure the procurement channel provides traceability documentation consistent with original manufacturer standards. Cross-reference the date code and lot number against internal quality requirements before integration into production batches.

Selection Notes

Select this component when multiple independent comparator functions are required within a single integrated circuit footprint. Consider its performance specifications relative to power supply constraints and required switching speeds. Evaluate thermal management needs based on the intended operating environment and load conditions.

Part Context

This part belongs to the LM239 family of quad comparators, widely used in industrial and consumer electronics. It serves as a direct replacement for older through-hole versions in modern surface-mount designs. The device maintains functional compatibility with previous iterations while offering improved manufacturing consistency and reduced physical size for compact board layouts.