ST Life.augmented


Micro-power CMOS op-amp with standby
  • active Active

The TSV621 is a single operational amplifier offering low voltage, low power operation and railto- rail input and output.

With a very low input bias current and low offset voltage (800 µV maximum for the A version), the TSV621 is ideal for applications that require precision. The device can operate at a power supply ranging from 1.5 to 5.5 V, and therefore suits battery-powered devices and extends battery life.

This product features an excellent speed/power consumption ratio, offering a 420 kHz gain bandwidth while consuming only 29 µA at a 5-V supply voltage.

This operational amplifier is unity gain stable for capacitive loads up to 100 pF.

The device is internally adjusted to provide very narrow dispersion of AC and DC parameters, especially power consumption, product gain bandwidth and slew rate.

The TSV621 presents a high tolerance to ESD, sustaining 4 kV for the human body model.

Additionally, the TSV621 is offered in SC70-5 and SOT23-5 micropackages, with extended temperature ranges from -40° C to +125° C.

All these features make the TSV621 ideal for sensor interfaces, battery-supplied and portable applications, as well as active filtering.

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Errata Sheet
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Key Features

  • Low supply voltage: 1.5 V–5.5V
  • Rail-to-rail input and output
  • Low input offset voltage: 800 µV max (A version)
  • Low power consumption: 29 µA typ
  • Gain bandwidth product: 420 kHz typ
  • Unity gain stability
  • Micropackages: SC70-5, SOT23-5
  • Low input bias current: 1 pA typ
  • Extended temperature range: -40 to +125° C
  • 4 kV HBM

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS5898: Rail-to-rail input/output 29 µA 420 kHz CMOS operational amplifiers
2.1 731 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
1.0 312 KB
TSV620/623 - Opamp macromodel (also SIMETRIX compatible)
1.0 3 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
Semiconductor solutions for healthcare applications
1.0 665 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**
TSV620ICTActiveSC70-6Tape And Reel-40125_-.33No availability reported, please contact our Sales officeEcopack2-
TSV620ILTActiveSOT23-6LTape And Reel-40125_-.33No availability reported, please contact our Sales officeEcopack2PDF

(*) 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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