Automotive Sensor Signal Conditioner with SENT or I2C Output

The ZSSC4169 is a member of IDT's ZSSC416x family of CMOS integrated circuits for highly accurate amplification and sensor-specific correction of differential bridge sensor signals. Featuring a maximum pre-amplification in the range of 150 to 200, the ZSSC4169 is adjustable to nearly all resistive bridges as well as voltage source sensor types. 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. 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 ZSSC4169 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 ZSSC4169 is optimized for automotive environments by overvoltage and reverse polarity protection circuitry, excellent electromagnetic compatibility, and multiple diagnostic features.


  • Differential bridge sensor input and on-chip or external temperature sensors, selectable for conditioning of sensor input signal and /or temperature output
  • Extended temperature measurement options (i.e., internal sensor, external diode)
  • SENT interface; OWI or I²C option for calibration
  • 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: ±0.50% FSO at -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. Code Pkg. Type Lead Count (#) Temp. Range Carrier Type Buy Sample
ZSSC4169DE4R Preview NLG24 VFQFPN 24 -40 to 150°C Reel Availability
ZSSC4169DE4W Preview NLG24 VFQFPN 24 -40 to 150°C Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZSSC4169 Datasheet Datasheet PDF 704 KB Jan 19, 2018
ZSSC4169 Short-Form Datasheet Short Form Datasheet PDF 144 KB Jan 19, 2018
ZSSC416x-7x Family Short-form Datasheet Short Form Datasheet PDF 196 KB Apr 23, 2016
User Guides & Manuals
ZSSC4169_0500_14 Configuration Description Manual PDF 873 KB Jan 19, 2018
Choosing the Right Sensor Signal Conditioning IC Guide PDF 300 KB Sep 25, 2017
Application Notes & White Papers
ZSSC416x-7x Application Note - User Memory Application Note PDF 493 KB May 16, 2017
IDT Wafer Dicing Guidelines Application Note PDF 44 KB Apr 16, 2016
Tutorial on the Digital SENT Interface - ZSSC416x/ZSSC417x White Paper PDF 253 KB Apr 9, 2016
ZSSC41xx Technical Brief - Traceability Data Technical Brief PDF 178 KB Aug 27, 2018
Sensing Technologies and Sensor Solutions Overview 简体中文 Overview PDF 2.11 MB Jun 21, 2018
Automotive Sensor Signal Conditioners Overview Overview PDF 2.22 MB Jan 29, 2018
IDT CAD Altium Libraries for AID Products Rev 20160819 PCB Design Files ZIP 1.20 MB Aug 18, 2016

Software & Tools

Title Other Languages Type Format File Size Date
ZSSC41xx Evaluation Software V3.1.1.0 Software ZIP 10.76 MB Aug 1, 2018

Evaluation Boards

Part Number Title Sort ascending
ZSSC416xKIT Evaluation Kit for ZSSC416x