FDC2112-Q1: incorrect capacitance readings

May

Part Number: FDC2112-Q1
Other Parts Discussed in Thread: FDC2112

Hi Team,

Good day, we received query from customer regarding incorrect capacitance readings. The customer is designing a dielectric meter using FDC2112. According to the customer, the measured frequency is correct
but the calculated capacitance values are wrong.

Furthermore, they already checked also this link (FDC2112: the result is false) e2e.ti.com/.../736071

Regards,

Maynard

over 3 years ago

0 Arjun_Prakash over 3 years ago

TI__Expert 7589 points

Hi Maynard,

Can you describe more about the capacitance values are wrong ? How far off is the capacitance from expected values ? Also, the FDC2112 is meant for application that can detect a change in the capacitance and not a device to measure absolute capacitance.