ZSSC3240 Datasheet | Renesas

Description 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 voltagesource element and single-element sensors (e.g., Pt100 and external temperature sensor diodes) powered by an on-chip current source. Digital pensation of the sensor offset, sensitivity, temperature drift, and non-linearity is acplished 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 bined. Basic Application Diagram Sensor Element VDD VSS OUTANA Optional Digital Master (I2C, SPI, OWI) Features - Digital munication and calibration interfaces o SPI up to 10MHz o I2C (Standard, Fast, and High-Speed Mode) o One-wire-interface (OWI), up to 100k Bit/s - Acmodates nearly all resistive bridge sensor types (signal spans from 1m V/V up to 500m V/V) - Supports different sensor element configurations: o Resistive bridge or half-bridge o Resistive divider string o Voltage source - On-chip temperature sensor - External temperature sensing supported, e.g. sensor-bridge as temperature detector, external diode, etc. - Support for Pt100...