Evaluation Module Texas Instruments FDC1004EVM

Prices

Detailed Description

The FDC1004EVM evaluation kit is a plug and play system to test and evaluate the FDC1004, 4-Channels capacitive to digital converter.

The EVM is a breakable PCB which consists of 3 sections. The first section is a USB to I2C converter based on MSP430F5528 microcontroller, the second section contains the FDC1004 and the third section is based on a touch less sensor (to demonstrate the sensitivity of the HDC1004) . The third section can be removed and replace with customized sensors according to the requirements of the applications. The FDC1004EVM does not need additional hardware, calibration nor does it require any software programming - only the FDC1004EVM GUI has to be installed. The software is able to configure the FDC1004’s registers, display on four graphs (one for each measurement) the capacitive values and export data in CSV format.

The FDC1004 is a high-resolution, 4-channel capacitance-to-digital converter for implementing capacitive sensing solutions. Each channel has a full scale range of ±15 pF and can handle a sensor offset capacitance of up to 100 pF, which can be either programmed internally or can be an external capacitor for tracking environmental changes over time and temperature. The large offset capacitance capability allows for the use of remote sensors.

The FDC1004 also includes shield drivers for sensor shields, which can reduce EMI interference and help focus the sensing direction of a capacitive sensor. The small footprint of the FDC1004 allows for use in space-constrained applications. The FDC1004 is available in a 10-pin WSON package and features an I2C interface for interfacing to an MCU.

Features

• Plug & Play
• Ready to be connected to customized sensors
• Measurements data logger
• FDC1004 Features:
  • Input Range: ±15 pF
  • Measurement Resolution: 0.5 fF
  • Maximum Offset Capacitance: 100 pF
  • Programmable Output Rates: 100/200/400 S/s
  • Maximum Shield Load: 400 pF
  • Supply Voltage: 3.3 V
  • Temp Range: –40 to 85°C
  • Current Consumption:
    • Active: 750 µA
    • Standby: 29 µA
  • Interface: I2C
  • Number of Channels: 4

FDC1004EVM User Guide and Schematic

ti.com