Very high accuracy (5 uV) zero drift micropower 5 V

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

Design

Technical Documentation

Product Specifications
Description Version Size
DS9216 DS9216: Very high accuracy (5 μV) zero drift micropower 5 V operational amplifiers 5.0 2 MB
Application Notes
Description Version Size
AN4835 AN4835: High-side current sensing for applications using high common-mode voltage 1.0 657 KB
AN4587 AN4587: Input bias current of a chopper amplifier 1.0 6 MB
AN4348 AN4348: Signal conditioning for electrochemical sensors 1.0 855 KB
AN4586 AN4586: Signal conditioning, differential to single-ended amplification 1.0 625 KB
User Manuals
Description Version Size
UM1737 UM1737: How to use the product evaluation board STEVAL-ISQ014V1 for low-side current sensing with the TSZ121 operational amplifier 1.0 474 KB
UM0065 UM0065: MACROMODELS USER MANUAL FOR STANDARD LINEAR PRODUCTS 1.0 120 KB
Design Notes & Tips
Description Version Size
DT0015 DT0015: Chop away input offsets with TSZ121/TSZ122/TSZ124 1.0 431 KB
DT0073 DT0073: Optical heart rate monitoring – OHRM based on X-NUCLEO-IKA01A1 expansion board 1.0 1 MB

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
TSZ121 Pspice model 1.0 3 KB

Presentations & Training Material

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

Publications and Collaterals

Flyers
Description Version Size
Micropower op amp and comparator solutions 2.0 1 MB
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
Brochures
Description Version Size
Operational amplifiers: performance, robust and advanced technology 2 MB
Products and Solutions for Factory Automation and Control 1.0 3 MB

Tools and Software

Evaluation Tools
Product Evaluation Tools

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
TSZ121ICT SC70-5 Tape And Reel -40 125 Active 0.646 1000 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
TSZ121IYLT SOT23-5L Tape And Reel -40 125 Active 0.776 1000 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
TSZ121ILT SOT23-5L Tape And Reel -40 125 Active 0.646 1000 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) 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**
TSZ121ICT ActiveSC70-5IndustrialEcopack3 0 0
TSZ121IYLT ActiveSOT23-5LAutomotiveEcopack3
TSZ121ILT ActiveSOT23-5LIndustrialEcopack3 0 0
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(**) 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.

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