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ZSSC3138 - Application Circuit
ZSSC3138 - Block Diagram
ZSSC3138 - Pinout


Automotive Sensor Signal Conditioner for Ceramic Sensor Applications

The ZSSC3138 is a member of the ZSSC313x product family of CMOS integrated circuits designed for automotive and industrial sensor applications. All family members are well suited for highly accurate amplification and sensor-specific correction of resistive bridge sensor signals. An internal 16-bit RISC microcontroller running a correction algorithm compensates sensor offset, sensitivity, temperature drift, and non-linearity of the connected sensor element. The required calibration coefficients are stored by the single-pass calibration procedure in an on-chip EEPROM. The ZSSC3138 offers a maximum analog gain of 420 and two offset compensation features. These fit the requirements of ceramic thick-film-based sensor elements as well as strain gauges perfectly. The high amplification in combination with the offset compensation offers the capability to set up ceramic-thick-film-based sensor applications without laser trimming, which leads to better long-term stability.


  • Adjustable to nearly all resistive bridge sensor types, analog gain of 420, overall gain up to 1680
  • Enhanced sample rate up to 7.8 kHz
  • High ADC resolution 15/16 bit
  • Safety functionality sensor connection
  • Internal temperature compensation
  • Digital compensation of sensor offset, sensitivity, temperature drift and non-linearity
  • Output options: ratiometric analog voltage output (5% to 95% maximum, 12.4 bit resolution) or ZACwire™ (digital one-wire-interface)
  • Sensor biasing by voltage
  • High voltage protection up to 33V
  • Supply current: max. 5.5mA
  • Reverse polarity and short circuit protection
  • Operation temperature range as wide as -40°C to +150°C
  • Traceability by user-defined EEPROM entries

Product Specification

FunctionTemp. RangeSupply Voltage (V)Input TypeInterfaceResolution (bits)
Resistive SSCT0, T14.50 - 5.50Single-bridgeZACwire™, I2C, Ratiometric Voltage16

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. RangeCarrier TypeSample & Buy
ZSSC3138BA1BActiveDICEWAFER0T1WaferCheck Availability
ZSSC3138BA1CActiveDICEFWAFER0T1WaferCheck Availability
ZSSC3138BA2RActivePYG14SSOP14T1ReelCheck Availability
ZSSC3138BA2TActivePYG14SSOP14T1TubeCheck Availability
ZSSC3138BE1BActiveDICEWAFER0T0WaferCheck Availability
ZSSC3138BE1CActiveDICEFWAFER0T0WaferCheck Availability
ZSSC3138BE2RActivePYG14SSOP14T0ReelCheck Availability
ZSSC3138BE2TActivePYG14SSOP14T0TubeCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
ZSSC3138 Short-form Datasheet Short Form Datasheet PDF 42 KB Jan 25, 2016
ZSSC3138 Datasheet Datasheet PDF 273 KB Jan 25, 2016
User Guides & Manuals
ZSSC313x Evaluation Kit Description Manual PDF 2.03 MB Apr 17, 2016
ZSSC313x Functional Description Manual PDF 634 KB Apr 16, 2016
Apps Notes & White Papers
ZSC31050/ZSC31150/ZSSC313X/ZSSC3154/ZSSC3170 Application Note - RBIC1 Calibration DLL Application Note PDF 275 KB Apr 26, 2016
ZSC31150/ZSSC3138 App Note - High Offset Compensation via Range Zooming Application Note PDF 367 KB Apr 26, 2016
IDT Wafer Dicing Guidelines Application Note PDF 44 KB Apr 17, 2016
show all (5)
ZSSC313x - EMC Design Guidelines Application Note PDF 1 MB Apr 17, 2016
ZSSC313x High Voltage Protection Application Note PDF 173 KB Apr 17, 2016
IDT Sensing Solutions Overview 日本語 Overview PDF 593 KB Nov 2, 2016
IDT CAD Altium Libraries for AID Products Rev 20160819 PCB Design Files ZIP 1.20 MB Aug 19, 2016
Automotive Solutions Overview 简体中文 Overview PDF 2.79 MB Mar 9, 2016
show all (4)
SSC Temperature Profile Calculation Spreadsheet Rev 1.03 Miscellaneous XLSX 53 KB Mar 10, 2014

Software & Tools

Title Type Format File Size Datesort icon
ZSSC3131, ZSSC3135, ZSSC3136 and ZSSC3138 Evaluation Software Rev. Software ZIP 931 KB Apr 7, 2016