Overview
Description
The ZSSC3281 is a dual path sensor signal conditioning IC (SSC) for highly accurate amplification, digitization, and sensor-specific correction of sensor signals. The ZSSC3281 is suitable for bridge and half-bridge sensors, as well as external voltage-source element and single-element sensors (for example, 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 32-bit ARM M3 based 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 ZSSC3281 provides measurement value readouts and programming capabilities via an I2C, SPI, or one-wire interface (OWI). Absolute and ratiometric voltage, current-loop, or interrupt outputs are supported by the ZSSC3281.
Features
- Digital communication and calibration 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
- On-chip temperature sensor
- External temperature sensing supported, for example, sensor-bridge as temperature detector, external diode, etc.
- Programmable 16-bit digital-to-analog-converter and output (supporting “True-0Volt”-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
- Wide operational temperature and supply range
- On-chip voltage regulators for sensor supply, and IC operation
- Support for extra regulation by external transistor, for example, JFET (especially for industrial supply voltages > 5.5VDC)
- Programmable sensor-signal-conditioning math core
- Reprogrammable, nonvolatile memory (NVM)
- On-chip diagnostics:
- Sensor connection
- AFE self-test
- Memory integrity
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 2.45 MB | |
| Overview | PDF 2.92 MB 日本語 | |
| Technical Brief | PDF 406 KB | |
| Guide | PDF 392 KB | |
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Design & Development
Boards & Kits
Evaluation
ZSSC3281KIT
Active
Dual-Channel 24-Bit Resistive Sensor Signal Conditioner Evaluation Kit
The ZSSC3281KIT Evaluation Kit provides the hardware needed for the configuration, calibration, and evaluation of the ZSSC3281 Sensor Signal Conditioner (SSC) IC. The user's PC can communicate with the ZSSC3281 IC socketed on the ZSSC3281 SSC Evaluation Board via the SSC Communication Board...
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
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Videos & Training
ZSSC3281 Sensor Signal Conditioner Overview
Learn about Renesas’ ZSSC3281 industry leading dual path sensor signal conditioning IC for fast and highly accurate amplification, digitization, and application specific correction of sensor signals.
Video List
News & Blog Posts
Blog Post
Jun 22, 2022
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