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LM2903QDGKRQ1

Analog Comparators Auto Catalog Dual Diff Comparator

Inventory:5,977

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Overview of LM2903QDGKRQ1

The LM2903QDGKRQ1 is a dual voltage comparator designed for use in automotive applications. It features low input offset voltage, low input bias current, and wide supply voltage range, making it suitable for precision voltage measurement and monitoring tasks in automotive systems.

Pinout

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

  • IN+ A: Non-Inverting Input of Comparator A
  • IN- A: Inverting Input of Comparator A
  • VCC: Positive Power Supply
  • IN- B: Inverting Input of Comparator B
  • IN+ B: Non-Inverting Input of Comparator B
  • VCC-: Negative Power Supply
  • OUT B: Output of Comparator B
  • OUT A: Output of Comparator A
  • VCC+: Positive Power Supply
  • GND: Ground

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM2903QDGKRQ1 for a visual representation.

Key Features

  • Dual Voltage Comparators: Provides two independent voltage comparators for flexible voltage monitoring.
  • Low Input Offset Voltage: Ensures accurate voltage comparisons for precision measurements.
  • Wide Supply Voltage Range: Operates from a single wide supply voltage range, making it versatile for various automotive systems.
  • Low Input Bias Current: Features low input bias current for minimal impact on measurement accuracy.
  • Automotive Grade: Designed for automotive applications with robust performance and reliability.

Note: For detailed technical specifications, please refer to the LM2903QDGKRQ1 datasheet.

Application

  • Voltage Monitoring: Ideal for monitoring voltage levels in automotive battery management systems.
  • Automotive Sensor Interface: Suitable for interfacing with sensors to compare analog voltages in automotive control systems.
  • Overvoltage Protection: Used in automotive circuits to provide overvoltage protection and trigger necessary actions.

Functionality

The LM2903QDGKRQ1 is a dual voltage comparator that compares two analog voltages and provides a digital output based on the comparison result. It is commonly used in automotive applications for voltage monitoring and control tasks.

Usage Guide

  • Power Supply: Connect VCC+ (Pin 9) and VCC- (Pin 6) to the appropriate positive and negative power supplies.
  • Input Connections: Connect the voltage inputs to the non-inverting and inverting input pins of the comparators.
  • Output Handling: Monitor the output pins for the comparison result (high or low) as per the input voltages.

Frequently Asked Questions

Q: What is the input bias current of the LM2903QDGKRQ1?
A: The LM2903QDGKRQ1 features low input bias current to minimize measurement inaccuracies.

Q: Can the LM2903QDGKRQ1 operate in harsh automotive environments?
A: Yes, the LM2903QDGKRQ1 is designed for automotive applications and can withstand harsh operating conditions.

Equivalent

For similar functionalities, consider these alternatives to the LM2903QDGKRQ1:

  • LM393: A dual voltage comparator IC offering comparable features to the LM2903QDGKRQ1 with slight variations in specifications.
  • LM339: This is a quad voltage comparator IC that can be used as an alternative to the LM2903QDGKRQ1 for higher channel 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) 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
Operating temperature range (°C) -40 to 125, -40 to 150 VICR (max) (V) 30.5
VICR (min) (V) 0

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LM2903QDGKRQ1

Analog Comparators Auto Catalog Dual Diff Comparator

Inventory:

5,977