Hello Abhijeet,
The range of 150-450pF should be doable for the FDC2214. Assuming the same LC tank as the FDC2214EVM (18uH and 33pF), you would be changing your sensor frequency between 2.773MHz and 1.707MHz. To help with noise, you may want to consider…
Hey Specia,
Glad we were able to make some progress and get that electromechanical relay working with the device. It might not hurt to try and do a layout and get that in the queue while we are trying to work through spikes for this analog mux. You can…
Part Number: FDC2214-Q1 Other Parts Discussed in Thread: FDC2214 The FDC2214 is very effective in our medical device application, but the voltage requirement (2.7V) and current draw (2mA) creates challenges for a wearable device using coin cell batteries…
Hi John,
I was able to replicate this behavior on my setup, where even when the CHx_ERR_AW bit is set, the ERR_AHW and ERR_ALW bits in the STATUS register is always 0 when I read it.
I did notice that in part of the description of the STATUS register…
Part Number: FDC2214 Hi all,
I would like to ask you the questions about the satasheets of FDS2214.
1)There are 2 notations of b10 in Table 32. Is the second one a mistake of b11?
2) Do I need to retrieve STAUS at 0x18 and verify INTB before loading…
Part Number: FDC2214 Hi Folks,
We are in production with a wearable medical device using the FDC2214 in differential mode with an eight channel sensor. We are designing a followup product and are looking at using an elastomeric connector for connecting…
Part Number: FDC2214 "I want to modify the circuit of the FDC2214 sensor by adjusting the LC resonant circuit to change the frequency of the Fsensor. After modification, I use L = 150uH ± 10%, C = 3300pF ± 5%. The theoretically calculated frequency is…
Part Number: FDC2214-Q1 Other Parts Discussed in Thread: FDC1004-Q1 Hello everyone. I am new members your community also TI. So how can I print the data from the FDC22214-Q1 sensor to the screen with I2C and STM32F4 DISCO card. If you share example code…
Part Number: FDC2214 Hi, I am developing a driver for the Fdc2214 chip and have two uncertainties for the datasheet:
1. What is the correct deglitch filter setting for 33MHz?
Table 11 on page 21 says 0b011 while the Mux_Config register says 0b111
2.…
Part Number: FDC2214 Hello,
I'm trying to measure a capacitor over 2 seperate 1,5m long wires. Each wire is shielded and connected to GND. At 20nF the results are good. At larger capacitances (e.g.) 40nF and, the signals amplitude can't be raised above…