Automotive Sensor Signal Conditioner with Analog Output

The ZSSC4151 is a CMOS integrated circuit for highly accurate amplification and sensor-specific correction of resistive bridge sensor signals. Digital compensation of sensor offset, sensitivity, temperature drift, and non-linearity is accomplished via an internal 16-bit RISC microcontroller running a correction algorithm, with calibration coefficients stored in an integrated EEPROM. The ZSSC4151 is adjustable to nearly all resistive bridge sensor types. Measured values are provided at the analog voltage output and at the optional digital I2C or the ZACwire™ interface, also referred to as the one-wire interface (OWI). The digital interfaces can be used for a simple PC-controlled calibration procedure to program a set of calibration coefficients into an on-chip EEPROM. The ZSSC4151 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.

Features

  • Safety and diagnostic functions that can enable support for automotive (ASIL B) and industrial (SIL 2) safety critical applications related to the ISO 26262:2011 and IEC 61508 standards
  • Digital compensation of sensor offset, sensitivity, temperature drift, and non-linearity
  • Adjustable to nearly all full or half bridge sensors
  • Analog gain of 200, supporting sensors with spans down to 1mV/V using the digital zooming option
  • Output options: ratiometric 12-bit analog voltage output (e.g., 5-95% or 10-90%) with freely adjustable clamping or ZACwire™ digital one-wire-interface (OWI)
  • Temperature compensation: internal or external diode, bridge external series resistance, or RTD
  • Sensor biasing by internal voltage
  • High voltage and reverse polarity protection up to 40V at all module pins: VDDE, VSSE, and AOUT
  • Maximum supply current: 7mA
  • Short-circuit protection for AOUT
  • Traceability via user-defined registers

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Range Carrier Type Buy Sample
ZSSC4151AE2R Active NLG24 VFQFPN 24 -40 to 150°C Reel Availability
ZSSC4151AE2V Active NLG24 VFQFPN 24 -40 to 150°C Tray Availability
ZSSC4151AE2W Active NLG24 VFQFPN 24 -40 to 150°C Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZSSC4151 Datasheet - Datasheet PDF 199 KB Apr 19, 2016
ZSSC4151 Short-form Datasheet - Short Form Datasheet PDF 92 KB Apr 19, 2016
ZSSC4151 Memories Rev 1.00 - Drawings PDF 27 KB Sep 13, 2015
User Guides & Manuals
ZSSC4151 Circuit + Functional Description - Manual PDF 180 KB Feb 7, 2016
ZSSC4151 Evaluation Kit Start-up Guide - Guide PDF 691 KB Mar 10, 2016
ZSSC4151 Evaluation Kit Hardware Manual - Manual - Eval Board PDF 1.20 MB Mar 10, 2016
Application Notes & White Papers
ZSSC4151 Application Description - Application Note PDF 1.00 MB May 26, 2016
IDT Wafer Dicing Guidelines - Application Note PDF 44 KB Apr 16, 2016
ZSSC4151 Application Note - I2C and OWI Interface Descriptions - Application Note PDF 208 KB Apr 16, 2016
ZSSC4151 QFN Package Dimensions - Application Note PDF 146 KB Apr 16, 2016
Other
ZSSC4151 Zip File for HTML Files for Commands and Memory Maps Rev. 1.03 - Miscellaneous ZIP 114 KB Mar 27, 2017
The IDT Automotive Advantage - Overview PDF 5.67 MB Jan 18, 2017
IDT CAD Altium Libraries for AID Products Rev 20160819 - PCB Design Files ZIP 1.20 MB Aug 18, 2016
Automotive Solutions Overview 简体中文 Overview PDF 2.79 MB Mar 8, 2016
ZSSC4151 Die Dimensions and Pad Locations - Technical Brief PDF 629 KB May 9, 2016

Software & Tools

Title Other Languages Type Format File Size Date
ZSSC4151 GUI Configuration and NVM Memory Files - Software ZIP 4 KB Jan 11, 2017
ZSSC4151 Evaluation Kit Software Rev 1.0.13.0 - Software ZIP 23.75 MB Aug 29, 2016

Evaluation Boards

Part Number Title Sort ascending
ZSSC415xKIT Evaluation Kit for ZSSC415x