Part Number: FDC2212 Hi TI Team,
I have probed the sensor channel 0 on the circuit with a digital logic analyzer to verify the oscillation of the sensor tank and I have encountered some uncertainties regarding the observed signals . Channel 1 displays…
Part Number: FDC2212 Hi TI team,
I am trying to program the FDC2212 sensor registers using the Teensy board and I am having difficulty with using I2C protocol to read/write from registers. I believe that the register address is 8bits and each register…
Hi FDC2212 Engineering Application Technology Consulting
What is the liquid used in your reported results?
There are many types of liquids, including polar and non-polar molecules
Are the two frequencies used in alternating probe positions?
We have…
Part Number: FDC2212 Hi team,
We are working on a capacitive sensing project that requires very high accuracy. Ideally, we would like the sensor to be able to differentiate in steps less than 5fF as our entire sensing range is roughly 200fF. Will the…
Part Number: FDC2212 1 : Consistency problem. Currently we use FDC2212 two channels in single-ended mode, 10PCS board inside, the same conditions to collect the capacitance consistency is very poor. There will be a 2pf gap between different devices. But…
Part Number: FDC2212 Hello,
One customer used FDC2212 for his application, but he found that the sampled data is incorrect.
CH0_FIN_SEL=b10
CH0_FREF_DIVIDER =0x01
DRIVE_CURRENT_CH0=0xA800, INA0 Vpp=1.5V
SETTLECOUNT register (0x10) is 0x000E.
CH0_RCOUNT…
Part Number: FDC2212 Other Parts Discussed in Thread: MSP430FR2676 , I have a setup with the FDC2212 communicating with the MSP430FR2676 via I2C. I have not been able to get the FDC2212 to drive the LC oscillator and receive data. I have set up the code…
To go forward we will need more info, like a full schematic, layout, and BOM. I will close this thread and send you a friend request. Please accept it and we can privately message thru this forum.
Regards, John
Part Number: FDC2212 Hello, we are working on a new design around the FDC2212 and are experiencing some anomalies. We're seeing occasional "steps" in the data, even in a purely static test set up. Occasionally, one or both channels with…
Cherry,
As mentioned earlier in the thread, many of our customers have struggled to get to production with the FDC2xxx devices because of their sensitivity to EMI and a lack of options for shielding. For this reason, we recommend using the FDC1004 which…