LM339APT
Overview
The LM339APT is a versatile, low-power quad voltage comparator designed to operate from a single power supply over a wide range of voltages from 2V to 32V. It features four independent comparators with open-collector outputs, allowing for easy interfacing with various logic families including CMOS, TTL, and ECL. This part is characterized by a low input offset voltage of 2mV and a very low input bias current of 0.1uA, making it suitable for precision sensing applications.
Why Choose This Part
The LM339APT offers high density with four comparators in a compact 14-TSSOP package. Its wide supply range and low quiescent current of 2.5mA make it ideal for battery-powered systems, while the open-collector outputs provide significant flexibility for wired-OR logic configurations.
Applications
Key Specifications
Getting Started
When designing with the LM339APT, ensure a pull-up resistor is connected to the output, as the open-collector stage cannot drive a high signal on its own. For prototyping, use a TSSOP-to-DIP adapter board or a standard breadboard with a breakout. Decouple the VCC pin with a 0.1uF ceramic capacitor placed as close to the IC as possible to minimize switching noise.
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