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
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.
Parameters
| Attributes | Value |
|---|---|
| Function | Resistive SSC |
| Automotive Qual. | No |
| Supply Voltage (V) | 1.8 - 48 |
| Input Type | Dual-bridge |
| Interface | I2C, SPI, Alarm, Ratiometric Voltage, Absolute Voltage, Current Loop, OWI, PWM, 2xPDM, 2xPWM |
| Adj. Analog Gain | 1.32 - 540 |
| Resolution (bits) | 24 |
| Sample Rate Max (KHz) | 2.91 |
| Temp. Range (°C) | -40 to 125°C, 0 to 70°C |
Applications
- Calibrated, continuously operating sensors with digital interface and/or analog output: (absolute or ratiometric) voltage or current loop output
- Enables smart, digital sensors for energy-efficient solutions
- (Dual/Diff.) pressure, flow and level sensing
- Industrial applications, for example–process/factory automation
- Consumer / white goods, for example–HVAC, weight scales
- Medical applications, for example–blood pressure, continuous smart health monitors
Renesas Boards & Kits
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... Read More
Support Communities
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ZSSC3281 Evalution kit
Is there a video or document that describe the calibration procedure as step with the ZSSC3281 evaluation kit? Is the CalibrationL63.dll that used for ZSSC3240 will work with the ZSSC3281? If not, is there a same DLL for the ZSSC3281?
May 9, 2024 -
Connect script issues with ZSSC3281 kit
I wrote I connect script that does exactly what the script in log file created and initialization of the ZSSC3281. The difference is the that the ZSSC3281 kit turn all the 4 LEDs on the ZSSCSRBV3 board (5V,12V,KS5V and KS12v) and my script turn on only 3 LEDs ...
Jul 24, 2024 -
Modify ZSSC3281 memory individually
Is there a way to change Indvidual register through the memory tab in the ZSSC328x Application v1.5.0? If not, can it be done by the console?
Jun 18, 2024
Support Communities
