概览
描述
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.
特性
- 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
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应用
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| 类型 | 文档标题 | 日期 |
| 数据手册 | PDF 2.45 MB | |
| 概览 | PDF 2.92 MB 日本語 | |
| 技术摘要 | PDF 406 KB | |
| 指南 | PDF 392 KB | |
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设计和开发
开发板与套件
评估
ZSSC3281KIT
有效
双通道 24 位电阻式传感器信号调节器评估套件
ZSSC3281KIT 评估套件提供配置、校准和评估 ZSSC3281 传感器信号调节器（SSC）IC 所需的硬件。 使用 USB 连接 SSC 通信板，用户的 PC 可以与 ZSSC3281 SSC 评估板上的 ZSSC3281 IC 进行通信。 评估套件软件可在线上免费下载。
评估板可以连接到用户的传感器或 SSC 传感器替换板 （SRB）。 SRB 可替代实际传感器，可用于初步校准或试运行校准。 在 SRB 上，仿真电阻传感器信号由电位计控制。
有关 SSC 通信委员会的更多信息和支持，请访问 SSC-CB 产品页面。
这些电路板也可以单独订购。...
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视频和培训
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.
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博客
2022年6月22日
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