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  • TLV323x 20ns High-Speed Comparator with Rail-to-Rail Input

    • SNOSDJ0C August   2024  – June 2025 TLV3231 , TLV3232

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  • TLV323x 20ns High-Speed Comparator with Rail-to-Rail Input
  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
    1.     Pin Configurations: TLV3231 and TLV3232
  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, TLV3231
    5. 5.5 Thermal Information, TLV3232
    6. 5.6 Electrical Characteristics
    7. 5.7 Switching Characteristics
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagrams
    3. 6.3 Feature Description
    4. 6.4 Device Functional Modes
      1. 6.4.1 Inputs
      2. 6.4.2 Internal Hysteresis
      3. 6.4.3 Outputs
      4. 6.4.4 ESD Protection
      5. 6.4.5 Power-On Reset (POR) - Dual Channel Only
  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
    2. 7.2 Typical Applications
      1. 7.2.1 Low-Side Current Sensing
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curve
    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
  12. IMPORTANT NOTICE
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Data Sheet

TLV323x 20ns High-Speed Comparator with Rail-to-Rail Input

1 Features

  • Propagation delay: 20ns

  • Input offset voltage: +/- 4mV maximum
  • Low supply current: 200µA per channel
  • Input voltage range extends 100mV beyond either rail

  • Internal hysteresis: 1.55mV

  • Power-on-reset provides a known startup condition (Dual channel only)

  • Push-pull output
  • Temperature range: -40°C to +125°C

2 Applications

  • Mobile phones & tablets
  • Headsets/headphones & earbuds
  • PC & notebooks
  • Gas detector
  • Smoke & heat detector
  • Motion Detector
  • Gas meter
  • Servo drive position sensor

3 Description

The TLV323x are a family of 5V single and dual channel comparators with push-pull outputs. The family has an excellent speed-to-power combination with a propagation delay of 20ns and a full supply voltage range of 2.7V to 5V with a quiescent supply current of only 200μA per channel.

Likewise, the TLV323x are conveniently available in standard leaded and leadless packages with features such as rail-to-rail inputs, low offset voltage, and large output drive current. These features along with fast response time make the comparators well-suited for current sensing, zero-cross detection, and a variety of other applications where precision and speed is critical.

All devices are specified for operation across the expanded temperature range of –40°C to 125°C.

Device Information
PART NUMBERPACKAGE (1)BODY SIZE (NOM (2)

TLV3231

SC-70 (5)1.25mm × 2.00mm
SOT-23 (5) 1.60mm × 2.90mm

TLV3232

VSSOP (8)3.00mm × 3.00mm
WSON (8)2.00mm × 2.00mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
TLV3231 TLV3232 Block DiagramBlock Diagram
TLV3231 TLV3232 Low-Side Current SensingLow-Side Current Sensing

4 Pin Configuration and Functions

Pin Configurations: TLV3231 and TLV3232

TLV3231 TLV3232 DCK, DBV PackagesSC70, SOT-23-5Top View(Standard "North West" Pinout)DCK, DBV Packages
SC70, SOT-23-5
Top View
(Standard "North West" Pinout)
Table 4-1 Pin Functions: TLV3231
PINI/ODESCRIPTION
NAME

NO.

OUT1OOutput
V-2-Negative supply voltage
IN+3INon-inverting (+) input
IN-4IInverting (-) input
V+5-Positive supply voltage
TLV3231 TLV3232 DGK, DSG Packages8-Pin VSSOP, WSONTop View DGK, DSG Packages
8-Pin VSSOP, WSON
Top View
Table 4-2 Pin Functions: TLV3232
PIN I/O DESCRIPTION
NAME NO.
IN1+

1

 I Noninverting input, channel 1
IN1–

2

 I Inverting input, channel 1
IN2–

3

 I Inverting input, channel 2
IN2+

4

 I Noninverting input, channel 2
OUT1

7

 O Output, channel 1
OUT2

6

 O Output, channel 2
V-

5

 - Negative (lowest) supply or ground
V+ 8 - Positive (highest) supply

5 Specifications

 
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