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LM339PT

LM339PT

STMicroelectronics
Analog Comparators Lo-Pwr Quad Voltage
67,073 in stock
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Overview

The LM339PT is a quad independent precision voltage comparator designed to operate from a single power supply over a wide range of voltages. It features a low supply current drain that is independent of the magnitude of the supply voltage, making it suitable for low-power and battery-operated designs.

Why Choose This Part

The quad-channel configuration in a TSSOP-14 package allows for high functional density on the PCB. Its open-collector output allows for easy interfacing with various logic families and the ability to perform wired-OR functions.

Applications

Level Translators
Converting logic levels between different voltage domains using the open-collector output structure.
Zero-Crossing Detectors
Identifying when an AC signal crosses zero volts for timing and synchronization circuits.
Limit Comparators
Monitoring sensor voltages to trigger alarms or logic signals when thresholds are exceeded.
Oscillators
Providing the switching core for multivibrators and pulse generators in timing applications.

Getting Started

When designing with the LM339PT, ensure that a pull-up resistor is used on the output as it cannot source current independently. Place a 0.1uF ceramic bypass capacitor close to the VCC pin to minimize noise sensitivity during high-speed switching transitions.

Also Consider

LM339ADR TITexas Instruments - A high-precision variant with lower input offset voltage specifications in a standard SOIC package.

Categories

Analog ICs > Comparators
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