The ZSSC3240 is a sensor signal conditioning IC (SSC) for highly accurate amplification, digitization, and sensor-specific correction of resistive sensor signals. The ZSSC3240 is suitable for bridge and half-bridge sensors, as well as external voltage-source ele­ment and single-element sensors (e.g., Pt100 and external temper­ature sensor diodes) powered by an on-chip current source. Digital compensation of the sensor offset, sensitivity, temperature drift, and non-linearity is accomplished via a 26-bit math core running a correction algorithm with calibration coefficients stored in a non-volatile, reprogrammable memory. The programmable, integrated sensor front-end allows optimally applying various sensors for a broad range of applications. The ZSSC3240 provides measurement value readouts and programming capabilities via an I2C, SPI, or one-wire interface (OWI). Three different operation modes allow optimal development of digital, digital-analog, and analog-output smart sensor modules including wake-up on request, continuous-on/fast‑response, and automatic/cyclic sensor measurement operations. Absolute and ratiometric voltage, current-loop, or interrupt analog outputs are supported by the ZSSC3240. The analog output options and digital interface options (for calibration and/or a digital application inter­face) can be combined.

Features

  • Digital communication and calibration interfaces:
    • SPI up to 10MHz
    • I2C (Standard, Fast, and High-Speed Mode)
    • One-wire-interface (OWI), up to 100kBit/s
  • Accommodates nearly all resistive bridge sensor types (signal spans from 1mV/V up to 500mV/V)
  • Supports different sensor element configurations:
    • Resistive bridge or half-bridge
    • Resistive divider string
    • Voltage source
  • On-chip temperature sensor
  • External temperature sensing supported, e.g. sensor-bridge as temperature detector, external diode, etc.
  • Support for Pt100 
  • Programmable 16-bit digital-to-analog-converter and output:
    • (0V to 1V) or (0V to 5V) absolute voltage output
    • VDD-ratiometric voltage output
    • 4mA to 20mA current-loop output supported 
    • 0V to 10V absolute-voltage output supported
  • On-chip voltage regulators for sensor supply, and IC operation
  • Support for VDD regulation by external JFET
  • 24-bit analog-to-digital converter and 26 bits digital-signal-conditioning math core
  • Reprogrammable, nonvolatile memory (NVM)
  • Programmable measurement scheduler for continuous sensing applications, with optimized balance of 
    • Energy consumption
    • Output update rate
    • Sensor-signal-conditioning accuracy
    • Self-diagnostic coverage and system safety
  • On-chip diagnostics:
    • Sensor connection
    • Broken-chip-check / chipping-check
    • Memory integrity

Product Options

Orderable Part ID Part Status Description Pkg. Type Lead Count (#) Temp. Range Carrier Type Package Buy Sample
ZSSC3240CC1B Active 304μm thickness, no inking WAFER 0 -40 to 85°C Wafer Package Info
Availability
ZSSC3240CC2B Active 725μm thickness, no inking WAFER 0 -40 to 85°C Wafer Package Info
Availability
ZSSC3240CC5B Active 304μm thickness, with inking WAFER 0 -40 to 85°C Wafer Package Info
Availability
ZSSC3240CC6B Active 725μm thickness, with inking WAFER 0 -40 to 85°C Wafer Package Info
Availability
ZSSC3240CI1B Active 304μm thickness, no inking WAFER 0 -40 to 125°C Wafer Package Info
Availability
ZSSC3240CI2B Active 725μm thickness, no inking WAFER 0 -40 to 125°C Wafer Package Info
Availability
ZSSC3240CI5B Active 304μm thickness, with inking WAFER 0 -40 to 125°C Wafer Package Info
Availability
ZSSC3240CI6B Active 725μm thickness, with inking WAFER 0 -40 to 125°C Wafer Package Info
Availability
ZSSC3240CI3R Active 13-inch Reel VFQFPN 24 -40 to 125°C Reel Package Info
Availability
ZSSC3240CI3W Active 7-inch Reel VFQFPN 24 -40 to 125°C Reel Package Info
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ZSSC3240 Datasheet Datasheet PDF 965 KB
User Guides & Manuals
ZSSC3240 Calibration Guide Manual PDF 381 KB
Choosing the Right Sensor Signal Conditioning IC Guide PDF 300 KB
Application Notes & White Papers
IDT Wafer Dicing Guidelines Application Note PDF 144 KB
Other
ZSSC3240 Electromagnetic Compatibility Technical Brief PDF 541 KB
ZSSC3240 Die and Wafer Information Technical Brief PDF 800 KB
Sensing Technologies and Sensor Solutions Overview 简体中文 Overview PDF 1.96 MB
Sensor Signal Conditioning ICs for Industrial and Consumer Applications 日本語 Overview PDF 2.93 MB

Boards & Kits

Part Number Title Type Company
ZSSC3240KIT Evaluation Kit for ZSSC3240 Reference