SNOSDA3H June   2020  – November 2025 TLV9020 , TLV9021 , TLV9022 , TLV9024 , TLV9030 , TLV9031 , TLV9032 , TLV9034

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
    1. 4.1 Pin Functions: TLV90x0 and TLV90x1 Single
    2. 4.2 Pin Functions: TLV90x2 Dual
    3. 4.3 Pin Functions: TLV90x4 Quad
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information, TLV90x0,TLV90x1
    5. 5.5  Thermal Information, TLV90x2
    6. 5.6  Thermal Information, TLV90x4
    7. 5.7  Electrical Characteristics, TLV90x0,TLV90x1
    8. 5.8  Switching Characteristics, TLV90x0,TLV90x1
    9. 5.9  Electrical Characteristics, TLV90x2
    10. 5.10 Switching Characteristics, TLV90x2
    11. 5.11 Electrical Characteristics, TLV90x4
    12. 5.12 Switching Characteristics, TLV90x4
    13. 5.13 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
    4. 6.4 Device Functional Modes
      1. 6.4.1 Outputs
        1. 6.4.1.1 TLV9022 and TLV9024 Open Drain Output
        2. 6.4.1.2 TLV9032 and TLV9034 Push-Pull Output
      2. 6.4.2 Inputs
        1. 6.4.2.1 Rail to Rail Input
        2. 6.4.2.2 Fault Tolerant Inputs
        3. 6.4.2.3 Input Protection
      3. 6.4.3 ESD Protection
      4. 6.4.4 Unused Inputs
      5. 6.4.5 Hysteresis
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Basic Comparator Definitions
        1. 7.1.1.1 Operation
        2. 7.1.1.2 Propagation Delay
        3. 7.1.1.3 Overdrive Voltage
      2. 7.1.2 Hysteresis
        1. 7.1.2.1 Inverting Comparator With Hysteresis
        2. 7.1.2.2 Non-Inverting Comparator With Hysteresis
        3. 7.1.2.3 Inverting and Non-Inverting Hysteresis Using Open-Drain Output
    2. 7.2 Typical Applications
      1. 7.2.1 Window Comparator
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curve
      2. 7.2.2 Square-Wave Oscillator
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Detailed Design Procedure
        3. 7.2.2.3 Application Curve
      3. 7.2.3 Adjustable Pulse Width Generator
      4. 7.2.4 Time Delay Generator
      5. 7.2.5 Logic Level Shifter
      6. 7.2.6 One-Shot Multivibrator
      7. 7.2.7 Bi-Stable Multivibrator
      8. 7.2.8 Zero Crossing Detector
      9. 7.2.9 Pulse Slicer
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

7.1.2 Hysteresis

The basic comparator configuration can oscillate or produce a noisy chatter output if the applied differential input voltage is near the offset voltage of the comparator. This typically occurs when the input signal moves very slowly across the switching threshold of the comparator.

the addition of hysteresis or positive feedback prevents this problem.

The hysteresis transfer curve is shown in Figure 7-2. This curve is a function of three components: VTH, VOS, and VHYST:

  • VTH is the actual set voltage or threshold trip voltage.
  • VOS is the internal offset voltage between VIN+ and VIN–. This voltage is added to VTH to form the actual trip point at which the comparator must respond to change output states.
  • VHYST is the hysteresis (or trip window) that is designed to reduce comparator sensitivity to noise.
TLV9020 TLV9021 TLV9022 TLV9024 TLV9030 TLV9031 TLV9032 TLV9034 Hysteresis Transfer CurveFigure 7-2 Hysteresis Transfer Curve

For more information, see the Comparator with and without hysteresis circuit application note.