I am demodulating differential signal using LPF based demodulator. The schematics of the entire system is attached which include diff modulator, coupling capacitors, and demodulator.
A modulated signal of 17 Mhz is demodulated. For the demodulator, I designed a 2-stage differential...
I found this circuit below from a research paper and been trying to simulate it without success. The circuit is about measuring capacitance values of the Femto range.
Please give your suggestion so that I will be able to measure the capacitance of a very small value.