• LM211DR SOIC (D)-8
LM211DR SOIC (D)-8

LM211DR

Strobe-controlled differential comparator

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Overview of LM211DR

The LM211DR is a high-speed voltage comparator IC with differential inputs and TTL-compatible outputs. It is designed for use in applications requiring fast response times and precise voltage comparisons, making it suitable for signal processing and control systems.

Pinout

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

  • IN-: Non-Inverting Input
  • IN+: Inverting Input
  • VCC: Positive Power Supply
  • VOUT: Output
  • V-,V+: Power Supply Pins
  • GND: Ground

Circuit Diagram

Include a circuit diagram showing the connections and usage of the LM211DR voltage comparator for a visual reference.

Key Features

  • High-Speed Operation: The LM211DR offers fast response times, making it suitable for time-critical applications.
  • Wide Input Voltage Range: This IC can operate with a wide range of input voltages, accommodating various signal levels.
  • Low Input Offset Voltage: With low offset voltage specifications, the LM211DR provides accurate voltage comparisons.
  • TTL-Compatible Outputs: The output of the LM211DR is compatible with TTL logic levels, enabling easy integration with digital circuits.
  • Wide Supply Voltage Range: Operates from a single +5V to +15V supply, making it versatile in different voltage environments.

Note: For detailed technical specifications, please refer to the LM211DR datasheet.

Application

  • Signal Conditioning: Ideal for signal conditioning tasks requiring precise voltage comparison.
  • Sensor Interface: Suitable for interfacing with sensors to compare analog signals with reference voltages.
  • Overvoltage Protection: Can be used in overvoltage protection circuits to trigger actions based on voltage levels.

Functionality

The LM211DR is an efficient voltage comparator IC that provides accurate comparisons between input voltages. It helps in making decisions based on voltage levels in various control and signal processing applications.

Usage Guide

  • Power Supply: Connect VCC (Pin 3) to the positive supply voltage and GND (Pin 6) to ground.
  • Input Connections: Apply the input voltages to the IN+ and IN- pins for comparison.
  • Output Usage: Monitor the output pin VOUT for the comparison result in your application.

Frequently Asked Questions

Q: What is the response time of the LM211DR?
A: The LM211DR offers high-speed operation with response times in the nanosecond range, ensuring swift voltage comparisons.

Q: Is the LM211DR suitable for battery-powered applications?
A: Yes, the LM211DR can be used in battery-powered systems as it operates within a wide supply voltage range and has low power consumption.

Equivalent

For similar functionalities, consider these alternatives to the LM211DR:

  • LM311: A voltage comparator IC with similar features and performance characteristics to the LM211DR.
  • LM339: This is a quad voltage comparator IC offering multiple comparator channels for complex voltage comparison tasks.
  • LM393: A dual voltage comparator IC providing basic voltage comparison functionality in a compact package.

LM211DR

Specifications

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

Number of channels 1 Output type Open-collector
Propagation delay time (µs) 0.115 Vs (max) (V) 30
Vs (min) (V) 3.5 Vos (offset voltage at 25°C) (max) (mV) 3
Iq per channel (typ) (mA) 5.1 Input bias current (±) (max) (nA) 100
Rail-to-rail No Rating Automotive, Catalog
Operating temperature range (°C) -40 to 125, -40 to 85 Features Strobe, Vos Adj Pin
VICR (max) (V) 13.8 VICR (min) (V) -14.7

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