LM339APWRG4

Overview

The LM339APWRG4 is a quad differential analog comparator manufactured by Texas Instruments, housed in a 14-TSSOP surface-mount package. It operates on a single power supply ranging from 2 V to 30 V or dual supplies of ±1 V to ±15 V. The device features four independent channels with open-collector outputs capable of sinking up to 6 mA. Key electrical specifications include a maximum input offset voltage of 3 mV at 30 V, a typical response time of 1.3 µs, and a quiescent supply current of 500 µA. It functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrates four independent high-gain differential comparators for multi-channel signal processing.
• Features open-collector outputs that facilitate direct interfacing with various logic families and bus systems.
• Designed for low-power operation with minimal quiescent current consumption.
• Supports wide single-supply or split-supply voltage ranges for flexible system integration.

Applications

• Temperature sensing circuits utilizing thermistor bridges
• Over-voltage and under-voltage protection monitoring
• Logic level translation between different voltage domains

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS status as per manufacturer documentation. Confirm the TSSOP-14 package dimensions match PCB footprint requirements. Ensure the operating temperature range meets environmental constraints. Cross-reference the datasheet revision date to validate parameter accuracy against current design standards.

Selection Notes

Select this component when multiple independent comparison functions are required in a compact surface-mount form factor. The open-collector output structure allows for wired-AND configurations and easy interface with external pull-up resistors. Consider the 3 mV input offset voltage specification if precise threshold detection is critical for the application.

Part Context

This part belongs to the LM339 family of quad comparators, a widely used standard in analog circuit design. The 'A' designation typically denotes tighter performance tolerances compared to standard variants, while the 'G4' suffix confirms green/RoHS-compliant manufacturing. It serves as a general-purpose solution for voltage monitoring and waveform generation tasks.

Replacement Considerations

LM339APW: Pin-compatible through-hole alternative with identical electrical characteristics. LM339DRG4: SOIC-14 package variant offering similar performance in a different surface-mount footprint. LM339PWRE4: Reel-packaged version of the TSSOP-14 variant for automated assembly.