Switched capacitor integrator system

Details Switched capacitor integrator system Switched capacitor integrator system

2006-11-21

2006-11-21

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific input to output function

By integrating

C327S344000, C327S345000

Reexamination Certificate

active

07138848

ABSTRACT:
A switched capacitor integrator system includes an input cascoded amplifier circuit; a summing junction; an integrating switched capacitor circuit connected to the output of the input cascoded amplifier circuit and to the summing junction; the integrating switched capacitor circuit including an input switched capacitor circuit responsive to an input and connected to the summing junction; and a correlated double sampling capacitor circuit including an offset capacitor interconnected between the summing junction and the input of the input cascoded amplifier circuit.

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Williams, et al. “Third-Order Sigma-Delta Modulator with Extended Dynamic Range”, IEEE Journal of Solid-State Circuits, vol. 29, No. 3, Mar. 1994, pp. 193-202.
Grilo et al., “Predictive Correlated Double Sampling Switched-Capacitor Integrators”, 1998 IEEE, pp. 9-12.
Huang et al. “Reduced Nonlinear Distortion in Circuits with Correlated Double Sampling”, IEEE Transactions on Circuits and Systems—II: Analog and Digital Signal Processing, vol. 44, No. 7, Jul. 1997, pp. 593-597.
Nagaraj, et al. “Reduction of Finite-Gain Effect In Switched Capacitor Filters”, Electronics Letter, Jul. 4, 1985, vol. 21, No. 14.

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