[sdiy] MOSFET leakage.

ASSI Stromeko at compuserve.de
Sun Dec 18 18:43:09 CET 2005


On Sonntag, 18. Dezember 2005 18:00, Simon Brouwer wrote:
> You'd have to use a trimmer, because of the large variation of gate
> capacitance between devices.

For a JFET perhaps (even that is doubtful, but I really don't know), two 
MOSFET of the same type and vintage have the same gate capacitance. 
That capacitance however is very nonlinear with biasing, so if you want 
to compensate it, you need a replica circuit.


Achim.
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