ZSSC3240CI3W

ZSSC3240CI3W 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).

• Digital communication and calibration interfaces
• Accommodates nearly all resistive bridge sensor types (signal spans from 1mV/V up to 500mV/V)
• On-chip temperature sensor
• External temperature sensing supported, e.g. sensor-bridge as temperature detector, external diode
• Support for Pt100
• On-chip voltage regulators for sensor supply, and IC operation
• Support for extra regulation by external transistor, for example JFET
• Programmable 24-bit sensor-signal-conditioning math core
• Reprogrammable, non-volatile memory (NVM)