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LM2903N/NOPB

TILM2903N/NOPB

Texas Instruments
Lower-power dual comparator with similar pinout and rail-to-rail input range, suitable for battery-powered designs.
Active9,754 in stock
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Overview

The LM2903N/NOPB is a dual general-purpose voltage comparator designed for a wide range of applications, including those requiring low-power operation. It features an open-collector, rail-to-rail output and can operate from a single supply voltage from 2V to 36V. This through-hole device is suitable for industrial and battery-powered systems.

Why Choose This Part

Engineers choose the LM2903N/NOPB for its low power consumption, making it well-suited for battery-powered designs. Its wide operating voltage range from 2V to 36V offers flexibility across various supply rails. The dual comparator in an 8-PDIP package simplifies board layout and reduces component count for common comparison tasks.

Applications

Battery Powered Applications
Its low quiescent current of 400uA at 5V makes it suitable for power-sensitive battery-operated devices where extending battery life is critical.
Industrial Sensor Interfaces
The ability to operate over a wide supply voltage range (2V to 36V) and a -40C to 85C temperature range makes it robust for various industrial sensing and control tasks.
Level Shifting
With an open-collector output and rail-to-rail input, it can be used for simple voltage level translation between different logic families or supply rails.
Oscillator and Multivibrator Circuits
Can be configured in astable or monostable multivibrator circuits for timing and waveform generation in control systems.
Window Comparators
The dual comparator design allows for easy implementation of window comparators to monitor if a voltage falls within a specified range.
Threshold Detection
Ideal for basic threshold detection in systems, signaling when an input voltage crosses a predefined level.

Key Specifications

Type Standard (General Purpose)
Output Type Open-Collector, Rail-to-Rail
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
Number of Elements 2
Operating Temperature -40degC ~ 85degC
Current - Output (Typ) 16mA @ 5V
Propagation Delay (Max) 700ns
Supplier Device Package 8-PDIP
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 get started with the LM2903N/NOPB, integrate it into standard through-hole prototype boards or custom PCBs. Its straightforward pinout and common comparator architecture mean no specialized development tools or software are required. Refer to the datasheet for typical application circuits, such as zero-crossing detectors, square wave generators, and basic threshold switches.

LM2903 Family

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

Part Number Package Temp Range Current - Output (Typ) Stock
LM2903N/NOPB (this part) DIP-8 -40degC ~ 85degC 16mA 9,754
LM2903DR SOIC-8 -40degC ~ 125degC 20mA 120,537
Also available as: LM2903VQPWR, LM2903BYDT, LM2903PT

Also Consider

LM393N/NOPB TITexas Instruments - This is a similar dual comparator with an open-collector output, offering a comparable feature set and pinout for many applications.
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