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LM339BIDR

TILM339BIDR

Texas Instruments
Comparator Differential Open-Collector 14-SOIC
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Overview

The LM339BIDR is a quad differential comparator featuring four independent voltage comparators designed to operate from a single power supply over a wide range of voltages. This device includes open-collector outputs, allowing for level shifting and easy interfacing with TTL, MOS, and CMOS logic families while operating from 2V to 36V.

Why Choose This Part

The B-version provides improved offset voltage specifications and higher supply voltage capability up to 36V compared to standard variants. Its quad-channel density in a single 14-pin SOIC package saves board space, while the 1.6mA low quiescent current profile suits power-sensitive industrial designs.

Applications

Limit Threshold Detection
Utilizing the four internal comparators to monitor multiple voltage rails or sensor signals against a fixed reference.
Zero-Crossing Detectors
Converting sine waves or AC signals into square waves for timing and phase measurements in power systems.
Oscillators and Pulse Generators
Configuring the open-collector outputs with external RC networks to create stable clock sources or PWM signals.
Industrial Logic Interfacing
Translating high-voltage industrial sensor signals (up to 36V) to low-voltage 5V or 3.3V microcontroller logic.

Key Specifications

Type Differential
Output Type Open-Collector
Mounting Type Surface Mount
Package / Case 14-SOIC (0.154", 3.90mm Width)
Number of Elements 4
Operating Temperature -40degC ~ 85degC
Current - Output (Typ) 21mA
Propagation Delay (Max) 1us (Typ)
Supplier Device Package 14-SOIC
Current - Quiescent (Max) 1.2mA
Current - Input Bias (Max) 0.025uA @ 5V
Voltage - Input Offset (Max) 3.5mV @ 5V
Voltage - Supply, Single/Dual (+/-) 2V ~ 36V

Getting Started

To implement the LM339BIDR, ensure a pull-up resistor is connected to the open-collector output to define the high-level logic voltage. Connect unused comparator inputs to ground to prevent oscillations, and place a 0.1uF bypass capacitor close to the VCC pin for stable operation.

Also Consider

LM339ADR TITexas Instruments - A standard precision variant with a lower maximum input offset voltage of 2mV.

Categories

Analog ICs > Comparators