Very high accuracy (5 uV) zero drift 5 V CMOS Op-Amps, dual, GBP=400kHz

The TSZ12x series of high precision operational amplifiers offer very low input offset voltages with virtually zero drift.

TSZ121 is the single version, TSZ122 the dual version, and TSZ124 the quad version, with pinouts compatible with industry standards.

The TSZ12x series offers rail-to-rail input and output, excellent speed/power consumption ratio, and 400 kHz gain bandwidth product, while consuming less than 40 µA at 5 V. The devices also feature an ultra-low input bias current.

These features make the TSZ12x family ideal for sensor interfaces, battery-powered applications and portable applications.

Key Features

  • Very high accuracy and stability: offset voltage 5 µV max at 25 °C, 8 µV over full temperature range (-40 °C to 125 °C)
  • Rail-to-rail input and output
  • Low supply voltage: 1.8 - 5.5 V
  • Low power consumption: 40 µA max. at 5 V
  • Gain bandwidth product: 400 kHz
  • High tolerance to ESD: 4 kV HBM
  • Extended temperature range: -40 to 125 °C
  • Micro-packages: SC70-5, DFN8 2x2, and QFN16 3x3


Technical Documentation

Product Specifications
Description Version Size
Very high accuracy (5 μV) zero drift micropower 5 V operational amplifiers 8.0 1 MB
Application Notes
Description Version Size
Signal conditioning for electrochemical sensors 2.0 1 MB
Technical Notes & Articles
Description Version Size
How to Extend the Performance of a Low Voltage Precision Op Amp to a High Voltage High Side Current Sensing Application 1.0 473 KB
User Manuals
Description Version Size
Design Notes & Tips
Description Version Size
Chop away input offsets with TSZ121/TSZ122/TSZ124 1.0 431 KB
Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board 1.0 1 MB

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
TSZ121 Pspice model 1.0 3 KB

Presentations & Training Material

Description Version Size
Health and Wellness Mobility Cloud computing 1 MB
ST Analog Products for Automotive applications 11.2017 2 MB
ST offering in Wearable - Analog and Mixed Signal Portfolio 3.0 1 MB
What does precision mean for an op amp? 1 MB

Publications and Collaterals

Description Version Size
TSZ series: ultra precision amplifiers 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 Factory Automation and Control 2.0 3 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
TSZ122IDT SO-8 Tape And Reel -40 125 Active 0.881 1000 NEC EAR99 PHILIPPINES MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
TSZ122IQ2T DFN8 2x2 Tape And Reel -40 125 Active 0.881 1000 NEC EAR99 CHINA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
TSZ122IYDT SO-8 Tape And Reel -40 125 Active 1.057 1000 NEC EAR99 PHILIPPINES MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
TSZ122IST MiniSO-8 Tape And Reel -40 125 Active 0.881 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**
TSZ122IDT ActiveSO-8IndustrialEcopack3 0 0
TSZ122IQ2T ActiveDFN8 2x2IndustrialEcopack3 0 0
TSZ122IYST ActiveMiniSO-8AutomotiveEcopack3 0 0
TSZ122IYDT ActiveSO-8AutomotiveEcopack3 0 0
TSZ122IST ActiveMiniSO-8IndustrialEcopack3 0 0

(**) 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.