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LM339DR

TILM339DR

Texas Instruments
Quad open-collector comparator if you need more channels with similar electrical characteristics and wide supply range.
Active76,336 in stock
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Overview

The LM339DR is a quad-channel independent voltage comparator designed to operate over a wide range of voltages from a single power supply. Each of its four elements features an open-collector output, allowing for easy integration in systems where level shifting or wired-OR logic is required. It is a cost-effective solution for applications requiring multiple comparison channels in a compact 14-SOIC package.

Why Choose This Part

The LM339DR offers high versatility with a supply range of 2V to 36V and a low quiescent current of 0.8mA at 5V. Its open-collector architecture simplifies interfacing with different logic families and allows for easy output paralleling.

Applications

Level Shifting
Converting high-voltage logic signals down to lower voltage levels by using the open-collector output with a specific pull-up resistor.
Window Comparators
Utilizing two elements to monitor if a voltage signal stays within a defined upper and lower threshold.
Oscillators and Multivibrators
Generating square waves or timing pulses in basic analog control circuits.
Zero-Crossing Detectors
Detecting when an input signal passes through a reference ground for timing or synchronization tasks.

Key Specifications

Type Standard (General Purpose)
Output Type Open-Collector
Mounting Type Surface Mount
Package / Case 14-SOIC (0.154", 3.90mm Width)
Number of Elements 4
Operating Temperature 0degC ~ 70degC
Current - Output (Typ) 20mA
Supplier Device Package 14-SOIC
Current - Quiescent (Max) 2.5mA
Current - Input Bias (Max) 0.25uA @ 5V
Voltage - Input Offset (Max) 5mV @ 30V
Voltage - Supply, Single/Dual (+/-) 2V ~ 30V, +/-1V ~ 15V

Getting Started

When designing with the LM339DR, ensure a pull-up resistor is connected to the output, as it cannot drive a high signal on its own. For rapid prototyping, this IC is compatible with SOIC-14 to DIP adapter boards for use in standard breadboards. Refer to the Texas Instruments datasheet for detailed input offset voltage and response time characteristics across the 0 to 70 degree Celsius temperature range.

LM339 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Output Type Package Current - Output (Typ) Current - Input Bias (Max) Voltage - Input Offset (Max) Voltage - Supply, Single/Dual (+/-) Stock
LM339DR (this part) Open-Collector SOIC-14 20mA 0.25uA 5mV 2V 76,336
LM339DT CMOS, DTL, ECL, MO.. SOIC-14 16mA 0.25uA 5mV 2V 10,147
LM339ADR Open-Collector SOIC-14 20mA 0.25uA 3mV 2V 18,276
LM339APT (STMicroelectronics) CMOS, DTL, ECL, MO.. TSSOP-14 16mA 0.1uA 2mV 2V 46,042
Also available as: LM339PWRG3, LM339DRE4, LM339PT

Also Consider

LM2901DR TITexas Instruments - An automotive-qualified alternative with a wider operating temperature range of -40 to 125 degrees Celsius.
LM339ADR TITexas Instruments - A higher-precision version of the same quad comparator with lower input offset voltage specifications.
LM393DR TITexas Instruments - A dual-channel version in a smaller 8-pin package for designs that do not require four comparison elements.
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