ZSSC3281BI3R

ZSSC3281BI3R is an advanced dual channel ARM based resistive sensor signal conditioner IC. This is highly accurate amplification, digitization, and sensor-specific correction of sensor signals. This suitable for bridge and half-bridge sensors, as well as external voltage-source element and single-element sensors powered by an on-chip current source. Digital compensation of the sensor offset, sensitivity, temperature drift, and non-linearity is accomplished via a 32-bit ARM M3 based math core running a correction algorithm with calibration coefficients stored in non-volatile, reprogrammable memory. The programmable, integrated sensor frontend allows optimally applying various sensors for a broad range of applications. This provides measurement value readouts and programming capabilities via an I2C, SPI, or one-wire interface. Absolute and radiometric voltage, current-loop, or interrupt outputs are supported by the ZSSC3281.

• Digital communication and calibration interfaces, SPI up to 10MHz, I2C and I3C SDR
• Accommodates nearly all resistive bridge sensor types (signal spans from 1mV/V to 500mV/V)
• Supports different sensor element configurations resistive bridge or half-bridge, voltage source
• On-chip temperature sensor, external temperature sensing supported
• Programmable 16-bit digital-to-analog-converter and output
• On-chip voltage regulators for sensor supply, and IC operation
• Support for extra regulation by external transistor, for example JFET, on-chip diagnostics
• Programmable sensor-signal-conditioning math core, reprogrammable, non-volatile memory
• 5 x 5mm² 40-QFN package
• Ambient temperature range from -40 to 125°C