Micropower low-voltage rail-to-rail comparator

The TS331, TS332 and TS334 are single, dual and quad micropower and low-voltage comparators. They can operate with a supply voltage ranging from 1.6 V to 5 V with a typical current consumption as low as 20 μA. In addition, rail-to-rail inputs make them a perfect choice for low-voltage applications.

Their availability in tiny packages is a real advantage for overcoming space constraints.

The TS33x are specified for temperatures between -40 °C to +125 °C, making them ideal for a wide range of applications.

Key Features

  • Supply operation from 1.6 V to 5 V
  • Low current consumption: 20 μA
  • Rail-to-rail inputs
  • Wide temperature range: -40 °C to +125 °C
  • Low output saturation voltage
  • Low propagation delay: 210 ns
  • Open-drain output
  • ESD tolerance: 2 kV HBM/200 V MM
  • SMD packages
  • Automotive qualified


Technical Documentation

Product Specifications
Description Version Size
DS6763 DS6763: Micropower low-voltage, rail-to-rail comparators 4.0 1 MB
Application Notes
Description Version Size
AN4071 AN4071: Introduction to comparators, their parameters and basic applications 1.0 482 KB
AN4368 AN4368: Signal conditioning for pyroelectric passive infrared (PIR) sensors 1.0 1002 KB
User Manuals
Description Version Size

HW Model & CAD Libraries

HW Model & CAD Libraries
Description Version Size
ST library for all op amps and comparators SPICE models 2.0 45 KB
TS331-TS332-TS334 Pspice model 1.0 2 KB

Presentations & Training Material

Description Version Size
VMA automotive applications 1 MB

Publications and Collaterals

Description Version Size
Micropower op amp and comparator solutions 2.0 1 MB
Description Version Size
Products and Solutions for Factory Automation and Control 1.0 3 MB
Semiconductor solutions for healthcare applications 1.0 665 KB
Support & Community

Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
TS331IYLT SOT23-5L Tape And Reel -40 125 Active 0.354 1000 NEC EAR99 MALAYSIA MORE INFO
TS331IQT MLPD/DFN 1.2x1.3x0.5 6L P0.4 Tape And Reel -40 125 Active 0.29 1000 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
TS331ILT SOT23-5L Tape And Reel -40 125 Active 0.29 1000 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
TS331ICT SC70-5 Tape And Reel 0 70 Active 0.28 1000 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TS331IYLT ActiveSOT23-5LAutomotiveNot compliant
TS331IQT ActiveMLPD/DFN 1.2x1.3x0.5 6L P0.4IndustrialNot compliant 0 0
TS331ILT ActiveSOT23-5LIndustrialNot compliant 0 0
TS331ICT ActiveSC70-5IndustrialNot compliant

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.