• LM2903DGKR VSSOP (DGK)-8
LM2903DGKR VSSOP (DGK)-8

LM2903DGKR

903DGKR SMT VSSOP8 comparator IC in reel tape packaging

Quantity Unit Price(USD) Ext. Price
5 $0.176 $0.88
50 $0.145 $7.25
150 $0.131 $19.65
500 $0.115 $57.50
2500 $0.107 $267.50
5000 $0.102 $510.00

Inventory:8,409

*The price is for reference only.
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Overview of LM2903DGKR

The LM2903DGKR is a dual voltage comparator IC designed for use in various analog and digital applications. This IC features two independent voltage comparators with open-collector outputs, providing flexibility and versatility in voltage monitoring and control circuits.

Pinout

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

  • IN-: Non-inverting input for comparator 1
  • IN+: Inverting input for comparator 1
  • VCC: Positive power supply
  • OUT: Output for comparator 1
  • OUT: Output for comparator 2
  • IN-: Non-inverting input for comparator 2
  • IN+: Inverting input for comparator 2
  • GND: Power ground

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM2903DGKR IC for a visual representation.

Key Features

  • Dual Voltage Comparators: Provides two independent voltage comparators in a single package, suitable for various voltage monitoring and control applications.
  • Open-Collector Outputs: Offers open-collector outputs for easy interfacing with other digital circuits, allowing flexible circuit design.
  • Wide Operating Voltage Range: Operates from a single +2.0V to +36V supply, making it compatible with a wide range of systems and voltage levels.
  • Low Input Bias Current: Features low input bias current, minimizing errors in voltage sensing applications.
  • Low Quiescent Current: Consumes minimal quiescent current, ideal for battery-powered and low-power applications.

Note: For detailed technical specifications, please refer to the LM2903DGKR datasheet.

Application

  • Voltage Monitoring: Suitable for voltage monitoring circuits in power supplies, battery management systems, and voltage regulators.
  • Overvoltage Protection: Used in overvoltage protection circuits to trigger alarms or shut down systems when voltage exceeds predefined thresholds.
  • Comparator Circuits: Ideal for implementing comparator circuits for analog signal processing, signal conditioning, and threshold detection.

Functionality

The LM2903DGKR is a dual voltage comparator IC that compares the voltage levels at its inputs and provides a corresponding digital output based on the comparison results. It offers reliable voltage monitoring and control in various electronic systems.

Usage Guide

  • Power Supply: Connect VCC (Pin 3) to the positive power supply and GND (Pin 8) to ground.
  • Input Connections: Apply voltage signals to the non-inverting (IN+) and inverting (IN-) input pins of each comparator for voltage comparison.
  • Output Monitoring: Monitor the digital output at the OUT pins to determine the comparison result.

Frequently Asked Questions

Q: What is the maximum supply voltage for the LM2903DGKR?
A: The LM2903DGKR can operate with a maximum supply voltage of 36V.

Q: Is the LM2903DGKR suitable for low-power applications?
A: Yes, the LM2903DGKR features low quiescent current, making it suitable for low-power and battery-powered applications.

Equivalent

For similar functionalities, consider these alternatives to the LM2903DGKR:

  • LM393: This is a dual voltage comparator IC offering similar functionality to the LM2903DGKR with slightly different specifications.
  • LM311: A single comparator IC with versatile functionality, suitable for various voltage comparison applications.

LM2903DGKR

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) 1.3 Vs (max) (V) 30
Vs (min) (V) 2 Vos (offset voltage at 25°C) (max) (mV) 7
Iq per channel (typ) (mA) 0.4 Input bias current (±) (max) (nA) 50
Rail-to-rail Out Rating Automotive, Catalog
Operating temperature range (°C) -40 to 125 Features Standard comparator
VICR (max) (V) 28.5 VICR (min) (V) 0

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