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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
Demystifying Switched-Capacitor Circuits
62
Distortion may stem from an imperfect clock signal whose waveform has a fi nite
slope. As we know, the sampling switch M
1
in Figure 3.5 is made of an NMOS
transistor; thus, when the value of (V
clk
V
in1
) reaches the transistor’s threshold
voltage V
th
, the switch is turned on. If the transition of V
clk
from “high” to “low” (and
vice versa) is not steep—that is, the waveform of V
clk
changes with a fi nite slope,
then neither the value of (V
clk
V
in1
) nor the switch open/close operation changes
abruptly, and thereby the actual sampling or holding instant deviates from the ideal.
As intuition suggests, the ...
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Publisher Resources

ISBN: 9780750679077