GUI Operation
Figure 38. Updating Input Measurement Offset for FDC2114
3.5.5
Setting the Power Mode and Sensor Initialization Currents
Most applications do not need maximum channel initialization currents and the low power sensor
activation mode should be enabled. When low power sensor activation mode is enabled, the IDRIVE code
determines how much current the device supplies to the sensor. To determine the optimal current drive
setting, move the system target to its furthest distance from the sensor and click the “Detect iDriveInit with
Auto-Amplitude Correction” button. This will take a measurement to determine an appropriate current
setting. After the setting has been measured, the code value of I
drive
must be adjusted.
31
SNOU138 – June 2015
FDC2114 and FDC2214 EVM User’s Guide
Copyright © 2015, Texas Instruments Incorporated
