Are there any guidelines to stay within as far as MOSFET capacitance goes?
Not that I'm aware. I have always seen the capacitance as a benefit in
that it acts as a filter where you need one. No doubt there could be such
a thing as "too much", but I haven't explored it. Mostly I have looked to
have a transconductance high enough to get the input impedance down
well below 10 ohms.
Not that I'm aware. I have always seen the capacitance as a benefit in
that it acts as a filter where you need one. No doubt there could be such
a thing as "too much", but I haven't explored it. Mostly I have looked to
have a transconductance high enough to get the input impedance down
well below 10 ohms.
That's good to know about the capacitance, thanks Nelson!
I'm still digesting these, but here are four papers that seem to provide a good explanation of the constraints when using a MOSFET in linear mode:
I'm still digesting these, but here are four papers that seem to provide a good explanation of the constraints when using a MOSFET in linear mode:
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