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LM2903VDR2G

ONLM2903VDR2G

onsemi
Comparator Standard (General Purpose) Open-Collector, Rail-to-Rail 8-SOIC
Active2,303 in stock
Datasheet Digi-Key Compare Prices

Overview

The LM2903VDR2G is a dual independent precision voltage comparator designed to operate from a single power supply over a wide range of voltages from 2V to 36V. This automotive-qualified device features an open-collector output stage, allowing it to interface easily with various logic levels and drive loads up to 20mA. Its robust design supports a wide operating temperature range from -40C to 125C, making it suitable for demanding environments.

Why Choose This Part

The device offers excellent versatility with a wide input common-mode range that includes ground even when operated from a single supply. Its low quiescent current of 0.4mA at 5V helps maintain efficiency in power-sensitive designs, while the SOIC-8 package provides a small footprint for high-density PCB layouts.

Applications

Limit Threshold Detection
Used in monitoring circuits to trigger an output when a signal exceeds or falls below a set reference voltage.
Zero Crossing Detectors
Utilized in AC power control applications to synchronize switching with the zero-voltage point of the waveform.
Oscillators and Multivibrators
Forms the core of simple pulse-width modulation (PWM) generators and square wave clock sources.
Logic Level Shifting
Leverages the open-collector output to translate signals between different voltage domains such as 3.3V and 5V.

Key Specifications

Type Standard (General Purpose)
Output Type Open-Collector, Rail-to-Rail
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Number of Elements 2
Operating Temperature -40degC ~ 125degC
Current - Output (Typ) 16mA @ 5V
Supplier Device Package 8-SOIC
Current - Quiescent (Max) 2.5mA
Current - Input Bias (Max) 0.25uA @ 5V
Voltage - Input Offset (Max) 7mV @ 30V
Voltage - Supply, Single/Dual (+/-) 2V ~ 36V, +/-1V ~ 18V

Getting Started

To evaluate this comparator, place it on a breadboard or SOIC-8 adapter and connect a pull-up resistor (typically 1k to 10k ohms) to the open-collector output to define the high logic state. Ensure the input signals remain within the -0.3V to 36V range and use bypass capacitors near the Vcc pin to minimize switching noise.

Part of LM Comparators family » LM2903

LM2903 Family

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

Part Number Package Output Type Temp Range Current - Output (Typ) Current - Quiescent (Max) Current - Input Bias (Max) Stock
LM2903VDR2G (this part) SOIC-8 Open-Collector, Ra.. -40degC ~ 125degC 16mA 2.5mA 0.25uA 2,303
LM2903DMR2G TSSOP-8 Open-Collector, Ra.. -40degC ~ 105degC 16mA 2.5mA 0.25uA 16,228
LM2903FVT-E2 (Rohm Semiconductor) TSSOP-8 Open-Collector -40degC ~ 125degC 16mA 1mA 0.25uA 7,865
LM2903AVQPWRG4Q1 (Texas Instruments) TSSOP-8 Open-Collector, Ra.. -40degC ~ 125degC 20mA 2.5mA 0.25uA 4,519
LM2903YPT (STMicroelectronics) TSSOP-8 Open-Collector, Ra.. -40degC ~ 125degC 16mA 2.5mA 0.25uA 99,631
LM2903DGKR (Texas Instruments) TSSOP-8 Open-Collector, Ra.. -40degC ~ 125degC 20mA 2.5mA 0.25uA 46,953
LM2903BQPWRQ1 (Texas Instruments) TSSOP-8 Open-Collector, Ra.. -40degC ~ 125degC 21mA 600uA 0.025uA 7,138
LM2903BIDSGR (Texas Instruments) WFDFN-8 Open-Collector, Ra.. -40degC ~ 125degC 21mA 600uA 0.025uA 17,300
LM2903AVQDRQ1 (Texas Instruments) SOIC-8 Open-Collector, Ra.. -40degC ~ 125degC 20mA 2.5mA 0.25uA 17,764
LM2903VQPWRQ1 (Texas Instruments) TSSOP-8 Open-Collector, Ra.. -40degC ~ 125degC 20mA 2.5mA 0.25uA 2,109

Also Consider

LM393DR2G ONonsemi - The standard commercial version for applications that do not require the extended automotive temperature range.