the resistors are drastically impacting the output voltage in a way I haven't been able to grasp.
And if I am dealing with a 3,3v circuit I can grasp how much current each decoupling cap can supply in one discharge by taking 0,1µF = 100nF which translates to 100nA times 3,3 = 330nA...
That I realized today...
3, Do I need two LIA's, one for current and one for voltage, both of which is a "dual PSD LIA"?.
Theoretically you could do with one LIA, as C_mitra says.3, Do I need two LIA's, one for current and one for voltage, both of which is a "dual PSD LIA"?.
What is the point of phase shifting the reference signal 90deg?
The role of the square-waves are clear, to be multiplied with the signal of interest and thus in that process extract it from the other frequencies.
I recommend to do some simple calculations/simulations with excel..What is the point of phase shifting the reference signal 90deg?
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