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特性

  • Supply voltage: 1.68V 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

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.

产品参数

属性
Function Capacitive SSC
Automotive Qual. No
Supply Voltage (V) 1.68 - 3.6
Input Type Single-capacitor
Interface I2C, PDM, Alarm
Adj. Analog Gain 0 - 30
Resolution (bits) 18
Sample Rate Max (KHz) 0.55
Temp. Range (°C) -40 to 85°C, -40 to 125°C, 0 to 70°C

封装选项

Pkg. Type Pkg. Dimensions (mm) Lead Count (#) Pitch (mm)
VFQFPN 4.0 x 4.0 x 0.9 24 0.5
WAFER 0.0 x 0.0 x 0.0

应用方框图

Embedded Programmable Logic Controller (PLC) for Industrial Use Block Diagram
工业用嵌入式可编程逻辑控制器(PLC)
灵活的嵌入式可编程逻辑控制器(PLC),旨在集成任何类型的接口以满足终端应用需求。

当前筛选条件

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.