The ZSSC4171 is a member of IDT's ZSSC417x family of CMOS integrated circuits for highly accurate amplification and sensor-specific correction of voltage source sensor signals; e.g., thermocouple signals. The ZSSC4171 is designed for single thermocouple signals. Digital compensation of offset, sensitivity, temperature drift, and nonlinearity is accomplished with a 16-bit RISC microcontroller. Calibration coefficients and configuration data are stored in an integrated non-volatile memory (NVM), which is reliable in automotive applications. Measured values can be read via a digital SENT or I2C interface. The SENT interface enables transmission of sensor data via its fast channel as well as supplementary data via its Serial Data Message ("slow") channel using only one output pin. End-of-line calibration is supported via an I2C interface or via a One-Wire Interface (OWI) through the data output pin (DOUT). The ZSSC4171 and the calibration equipment communicate digitally, so the noise sensitivity is greatly reduced. Digital calibration helps keep assembly cost low as no trimming by external devices or lasers is needed. The ZSSC4171 is optimized for automotive environments by overvoltage and reverse polarity protection circuitry, excellent electromagnetic compatibility, and multiple diagnostic features.


  • Single thermocouple interface
  • Supports N-type thermocouples; additional thermocouple types on request
  • Diagnostics for thermocouples
  • Internal temperature sensor for cold-junction temperature compensation
  • Digital compensation of offset, gain, and higher order nonlinearity as well as temperature coefficients of measured sensor input signals
  • Operating temperature range: -40°C to 150°C
  • Accuracy: ±0.25% FSO @ -40°C to 125°C
  • NVM memory for configuration data, user-configurable measurement and conditioning function, and user-selected data

Product Options

Orderable Part ID Part Status Pkg. Type Lead Count (#) Temp. Range Carrier Type Package Buy Sample
ZSSC4171BE2R Not Recommended for New Designs VFQFPN 24 -40 to 150°C Reel Package Info
ZSSC4171BE2W Not Recommended for New Designs VFQFPN 24 -40 to 150°C Reel Package Info

Documentation & Downloads

Title Other Languages Type Format File Size Date
User Guides & Manuals
ZSSC41xx Technical Brief - Traceability Data Guide PDF 306 KB
IDT CAD Altium Libraries for AID Products Rev 20160819 Guide ZIP 1.20 MB
Application Notes & White Papers
IDT Wafer Dicing Guidelines Application Note PDF 144 KB
Tutorial on the Digital SENT Interface - ZSSC416x/ZSSC417x White Paper PDF 253 KB
ZSSC41xx Evaluation Software V3.2.4.2 Software ZIP 10.92 MB
Choosing the Right Sensor Signal Conditioning IC Miscellaneous PDF 300 KB

Boards & Kits

Part Number Title Type Company
ZSSC417xKIT Evaluation Kit for ZSSC417x