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High precision low-power quad CMOS op amp
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The OA1MPA, OA2MPA, OA4MPA series of single, dual, and quad operational amplifiers offer low-voltage operation, rail-to-rail input and output, and excellent precision (Violower than 200 μV at 25 °C).

These low power op amps benefit from STMicroelectronics 5 V CMOS technology and offer an excellent speed/power consumption ratio (150 kHz typical gain bandwidth) while consuming less than 14 μA at 5 V. The OA1MPA, OA2MPA, OA4MPA series also feature an ultra-low input bias current.

The OA1MPA, OA2MPA, OA4MPA are respectively the single, dual and quad operational amplifier versions and are housed in the smallest industrial package.

The OA1MPA, OA2MPA, OA4MPA family is the ideal choice for wearable, fitness and healthcare applications.

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Errata Sheet
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Key Features

  • Low offset voltage: 200 μV max.
  • Low power consumption: 10 μA at 5 V
  • Low supply voltage: 1.5 V to 5.5 V
  • Gain bandwidth product: 150 kHz typ.
  • Low input bias current: 1 pA typ.
  • Rail-to-rail input and output
  • EMI hardened operational amplifiers
  • High tolerance to ESD: 4 kV HBM
  • Extended temperature range: -40 to +125 °C
  • Benefits
  • High precision without calibration
  • Energy saving
  • Guaranteed operation on low-voltage battery

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS10203: High precision low-power CMOS op amp
1.0 680 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
Op Amp Library - all ST op amps SPICE models (.subckt) in only one file
1.0 340 KB

Presentations & Training Material


Description Version Size
Health and Wellness Mobility Cloud computing
1,347 KB
ST offering in Wearable - Analog and Mixed Signal Portfolio
3.0 1,508 KB
VMA automotive applications
1,366 KB
What does precision mean for an op amp?
1,173 KB

Publications and Collaterals


Description Version Size
Analog ICs for wearable devices
2.0 981 KB
Products and Solutions for Factory Automation and Control
Jan 2015 3,105 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
OA4MPA33QActiveVFQFPN 16 3x3x0.9Tape And Reel-40125_Free Samples1.3Distributor reported inventory date: 2015-10-13
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA30003000
Farnell Element14Order NowEUROPE30001

(*) 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
(**) The Material Declaration forms available on 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.
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