Renesas Electronics Corporation
Signal Conditioning 5X5MM2 40-QFN
Series Information:
Renesas Electronics ZSSC3281 Resistive Sensor Signal Conditioner IC
The Renesas Electronics ZSSC3281 is a highly precise Resistive Sensor Signal Conditioner (SSC) IC designed for accurate amplification, digitization, and sensor-specific corrections. It is compatible with bridge and half-bridge sensors, external voltage-source elements, and single-element sensors that use an on-chip current source. The IC features a 32-bit Arm® M3-based math core that executes a correction algorithm to digitally compensate for sensor offset, sensitivity, temperature drift, and non-linearity. Calibration coefficients are stored in non-volatile, reprogrammable memory. Its programmable, integrated sensor front-end enables optimal sensor application across various uses.The ZSSC3281 supports measurement readouts and programming through I2C, SPI, or one-wire interface (OWI). It also offers options for absolute and ratiometric voltage, current-loop, or interrupt outputs.This IC is available in a 5.0mm x 5.0mm QFN-40 package and can also be supplied as a bare die on a 304µm or 725µm wafer, either with or without inking.
Features:
Digital communication and callibration interfaces:
SPI up to 10MHz
I2C (Standard, Fast, Fast+) and I3C SDR
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
Programmable 16-bit digital-to-analog-converter and output, supporting "True-0V"-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 temperature sensor
External temperature sensing supported
Wide operational temperature and supply range
On-chip voltage regulators for sensor supply and IC operation
Support for extra regulation by an external transistor
Programmable sensor-signal-conditioning math core
Reprogrammable, non-volatile memory (NVM)
On-chip diagnostics
Sensor connection
AFE self-test
Memory integrity
Package options
5.0mm x 5.0mm QFN-40 package
Bare die on a 304µm wafer
Bare die on a 725µm wafer
Applications:
Calibrated, continuously operating sensors with digital interface and/or analog output
Smart, digital sensors for energy-efficient solutions
Pressure, flow, and level sensing
Industrial applications and factory automation
Consumer and white goods
Medical and health monitors