Other Parts Discussed in Thread: FDC1004 , FDC2112 Hey is it possible to ust the EVM on a Raspberry Pi via USB or do I need to use I2C and the corresponding GPIOs at the Raspi? The FDC1004 comes with code snippets online that are at least helpfull for arduino…
Thanks Hadyn. With the nominal frequencies, inductance and capacitance given here, it looks like the sensors should have about 20pF of capacitance? Does this line up with what you expect?
Interestingly, there is another FDC2112 E2E thread where the sensors…
We only use it with capacitive sensing solution.
Is this TI part suitable for FDC2x1x (FDC2112, FDC2212, FDC2114, FDC2214) application??
Application states – A wide frequency range is especially useful for reliable sensing of conductive liquids such…
Hello,
Depending on the resolution they need, you could use the FDC2112 instead. The FDC2112 operates at a faster sample rate but has less resolution than the FDC2212. If not, the FDC2214 is just a 4 channel version of the FDC2212. If using the FDC2214…
Peter,
The FDC2112/4 can be sensitive to EMI from the surrounding environment. Is your customer using a shield as described in the data sheet, section 10.1.2?
Regards, John
Part Number: FDC2212 Other Parts Discussed in Thread: FDC2112 I am working on two pcb's, one of them with FDC2112 and one with FDC2212.
I have the same problem in both. I cannot change the Vpp of the channels using the IDRIVE registers.
I will attach…
Part Number: FDC2214EVM Other Parts Discussed in Thread: FDC2212 , FDC2114EVM , FDC2214 , FDC2114 , FDC2112 , FDC1004 Hello,
For evaluation purposes I want to use the FDC2214EVM in combination with a custom board with a FDC2212.
Will the software (MSP430 and…
Part Number: FDC2214 I found this below curve in a previous post(link: https://e2e.ti.com/support/sensors/f/sensors-forum/660277/fdc2112-fdc2112-sensor-device-advice/2432400#2432400 )
Because this curve was posted by TI's staff, it should be real. I want…
Hi Alvin,
Thanks for your information on the application. What about building with multiple sensors with multiple FDC1004s ?
FDC1004 is certainly the product we recommend over the FDC2112 primarily due to the feature called active shielding that is present…
Hi Jun,
The FDC2112 will be a challenge in implementing a 0.01% resolution for a base of 50pF. At such capacitance levels noise in the system takes over. The sensor design and the coil design presents challenges to achieve such resolution. The FDC2112…
