Low power dual voltage comparator

This device consists of two independent low-power voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible.

The input common-mode voltage range includes negative rail even though operated from a single power supply voltage.

All pins are protected against electrostatic discharge up to 2 kV. Consequently, the input voltages must not exceed the VCC+ or VCC- magnitudes.

Key Features

  • Wide, single supply voltage range or dual supplies, 2 V to 36 V or ±1 V to ±18 V
  • Very low supply current (0.4 mA) independent of supply voltage (1 mW/comparator at 5 V)
  • Low input bias current: 25 nA typ.
  • Low input offset current: ±5 nA typ.
  • Input common-mode voltage range includes negative rail
  • Low output saturation voltage: 250 mV typ. (IO = 4 mA)
  • Differential input voltage range equal to the supply voltage
  • TTL, DTL, ECL, MOS, CMOS compatible outputs
  • ESD internal protection: 2 kV
  • Wide operating temperature range: -40 to 150 °C


Technical Documentation

Product Specifications
Description Version Size
DS11249 DS11249: Low-power, dual-voltage comparator 1.0 594 KB
Application Notes
Description Version Size
AN4071 AN4071: Introduction to comparators, their parameters and basic applications 1.0 482 KB
User Manuals
Description Version Size

HW Model, CAD Libraries & SVD

HW Model, CAD Libraries & SVD
Description Version Size
ST library for all op amps and comparators SPICE models 4.0 51 KB

Presentations & Training Material

Description Version Size
ST Analog Products for Automotive applications 11.2017 2 MB

Publications and Collaterals

Description Version Size
ST automotive solutions - High-performance analog products 1.0 1 MB
Selection Guides
Description Version Size
ST Analog cards High-performance operational amplifiers and comparators, the best choice for longevity, robustness and performance. 1.0 818 KB
Description Version Size
Operational amplifiers: performance, robust and advanced technology 2 MB
Products and solutions for Smart industry 2.0 5 MB
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
LM2903WHYST MSOP/TSSOP 8 Tape And Reel -40 150 Active 0.767 1000 NEC EAR99 PHILIPPINES 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**
LM2903WHYST ActiveMSOP/TSSOP 8AutomotiveEcopack3

(**) 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.