
Switched-Capacitor Building Blocks
53
Alternatively, we may create a noninverting integrator by simply swapping the
two switches near the virtual ground in Figure 3.3(d) (i.e., using the clock phases in
parentheses). However, comparing Equations (3.62) and (3.57), we realize that this
parasitic-compensated integrator basically clones the transfer function of the circuit
presented in Figure 3.3(a), yet at the cost of more switches and larger capacitors.
Thus, it is seldom used in practice.
Making use of the inherent S&H property and the parasitic-compensating
concept developed earlier, researchers have created a few interesting parasitic-
compens ...