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Demystifying Switched Capacitor Circuits
book

Demystifying Switched Capacitor Circuits

by Mingliang (Michael) Liu
June 2006
Intermediate to advanced content levelIntermediate to advanced
336 pages
10h 24m
English
Newnes
Content preview from Demystifying Switched Capacitor Circuits
Advanced Switched-Capacitor Circuit Techniques
255
In [16], a current source is used to drive a replica switch with a constant on-
conductance (g
ds
), and an op-amp loop is used to force the source of the replica
switch to track the input signal, thereby allowing the main switch to maintain a
constant V
gs
, and also, a fi xed g
ds
. As a result, the distortion caused by the input-
dependent on-resistance (R
on
) is greatly suppressed. However, due to the use of active
devices such as the op-amp, this bootstrapping circuit dissipates more power as
compared to the aforementioned passive confi gurations, given the same power supply
voltage.
Switched Op-Amp ...
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Publisher Resources

ISBN: 9780750679077