概览
描述
The ZSSC3230 is a CMOS integrated circuit for accurate capacitance-to-digital conversion and sensor-specific correction of capacitive sensor signals. Digital compensation of sensor offset, sensitivity, and temperature drift is accomplished via an internal digital signal processor running a correction algorithm with calibration coefficients stored in a non-volatile, multiple-time programmable (MTP) memory. Programming the ZSSC3230 is simple via the serial interface. The interface is used for the PC-controlled calibration procedure, which programs the set of calibration coefficients in memory. The ZSSC3230 is configurable for capacitive sensors with capacitances up to 30pF and will provide a scalable up to 18-bit output resolution. It is compatible with single-ended capacitive sensors. Measured and corrected sensor values can be output as I²C (≤ 3.4MHz).
The ZSSC3230 provides accelerated signal processing, increased resolution, and improved noise immunity to support high-speed control, safety, and real-time sensing applications with the highest requirements for energy efficiency.
特性
- Supply Voltage 1.68 to 3.6V
- Low current consumption with 1.3µA at 1 sample per second
- Maximum target input capacitance: 30pF
- Programmable capacitance span and offset
- High sampling rate with 430Hz at 14-bit resolution
- ADC resolution: Adjustable in speed and resolution, 18-bit in maximum
- Internal auto-compensated temperature sensor, not stress sensitive
- Programmable measurement sequence, single shot and automatic cycling of measurements with end-of-sequence interrupt output
- Oversampling modes by internal averaging
- Interrupt features
- Build in NVM for configuration and free space for arbitrary user data
- Small die size
- External reset pin (low active)
- No external trimming components required
- Highly integrated CMOS design
- Package: Die and 24-VFQFPN
产品对比
应用
文档
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| 类型 | 文档标题 | 日期 |
| 数据手册 | PDF 886 KB | |
| 概览 | PDF 2.92 MB 日本語 | |
| 指南 | 7Z 1.21 MB | |
| 手册 - 硬件 | PDF 3.83 MB | |
| 指南 | PDF 1.02 MB | |
| 技术摘要 | PDF 647 KB | |
6 项目
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设计和开发
支持
视频和培训
This video introduces the ZSSC3230, the newest energy efficient and highly precise 18-bit sensor signal conditioners (SSCs) from Renesas. Its combination of best-in-class signal conditioning, low power consumption and small size makes it ideal for use with humidity, pressure, level and other smart capacitive sensor modules that are included in a variety of consumer, medical and industrial applications, such as HVAC systems, weather stations, smart meters and automated smart building systems.