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LM2903N/NOPB

The LM2903N/NOPB by Texas Instruments is a versatile dual comparator featuring open collector and open drain outputs

Quantity Unit Price(USD) Ext. Price
100 $1.235 $123.50
30 $1.258 $37.74
10 $1.282 $12.82
1 $1.316 $1.32

Inventory:7,207

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Overview of LM2903N/NOPB

The LM2903N/NOPB is a dual voltage comparator IC designed for precision voltage measurement and monitoring applications. This IC features two independent voltage comparators in a single package, providing accurate comparison of two voltage levels.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • IN1-: Inverting Input for Comparator 1
  • IN1+: Non-Inverting Input for Comparator 1
  • VCC: Positive Power Supply
  • OUT1: Output for Comparator 1
  • OUT2: Output for Comparator 2
  • VSS: Ground
  • IN2-: Inverting Input for Comparator 2
  • IN2+: Non-Inverting Input for Comparator 2

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM2903N/NOPB IC for a visual representation.

Key Features

  • Dual Voltage Comparators: The LM2903N/NOPB includes two independent voltage comparators, allowing simultaneous comparison of two input voltages.
  • Wide Operating Voltage Range: This IC operates within a wide supply voltage range, making it versatile for various voltage monitoring applications.
  • Low Offset Voltage: With low offset voltage specifications, the LM2903N/NOPB ensures accurate voltage comparison.
  • High Input Impedance: The IC features high input impedance, enabling it to interface with different input signal sources without loading effects.
  • Stable Operation: The LM2903N/NOPB offers stable and reliable operation in voltage monitoring and measurement circuits.

Note: For detailed technical specifications, please refer to the LM2903N/NOPB datasheet.

Application

  • Voltage Monitoring: Ideal for voltage monitoring applications where precise comparison of two voltages is required.
  • Overvoltage Protection: Suitable for implementing overvoltage protection circuits in electronic systems.
  • Signal Conditioning: Used in signal conditioning circuits to compare and process analog signals.

Functionality

The LM2903N/NOPB is a dual voltage comparator IC that compares two input voltages and provides corresponding output signals based on the comparison results. It is widely used in applications requiring accurate voltage monitoring and measurement.

Usage Guide

  • Power Supply: Connect VCC (Pin 3) to the positive power supply and VSS (Pin 7) to ground.
  • Input Signals: Apply the voltages to be compared to the IN1+ and IN1- inputs for Comparator 1, and the IN2+ and IN2- inputs for Comparator 2.
  • Output Signals: Monitor the output signals OUT1 and OUT2 for the comparison results.

Frequently Asked Questions

Q: What is the input voltage range supported by the LM2903N/NOPB?
A: The LM2903N/NOPB can typically operate with input voltages ranging from VSS-0.3V to VCC+0.3V.

Q: Is the LM2903N/NOPB suitable for automotive applications?
A: Yes, the LM2903N/NOPB is commonly used in automotive systems for various voltage monitoring and control functions.

Equivalent

For similar functionalities, consider these alternatives to the LM2903N/NOPB:

  • LM393: A dual voltage comparator IC offering similar functionality to the LM2903N/NOPB but with slight variations in specifications.
  • LM311: This is a voltage comparator IC from Texas Instruments that can be used as an alternative for voltage comparison applications.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Number of channels 2 Output type Open-collector
Propagation delay time (µs) 0.7 Vs (max) (V) 36
Vs (min) (V) 2 Vos (offset voltage at 25°C) (max) (mV) 7
Iq per channel (typ) (mA) 0.2 Input bias current (±) (max) (nA) 250
Rail-to-rail Out Rating Catalog
Operating temperature range (°C) -40 to 85 Features Small Size
VICR (max) (V) 34.5 VICR (min) (V) 0

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