Part Number: FDC1004
Hi All,
The customer is using the FDC1004 try to use CAPDAC to expand the range of each channel equivalent capacitance.
When they set the CHB to "Disabled", the value as below:
CIN1=0.666 pF
CIN2=0.428 pF
CIN3=0.169 pF
After setting the CHB to CAPDAC but remain the CAPDAC as "0", all the measurement increase and measurement "3" is increase sharply.
CIN1=0.899
CIN2=0.785
CIN3=1.265
They only change the GUI, the hardware part remain.
What would cause this phenomenon?
Please kindly share your comment.
BRs
Evan
