Apparatus and method for sample-and-hold with boosted...

Details Apparatus and method for sample-and-hold with boosted... Apparatus and method for sample-and-hold with boosted...

2006-03-21

2006-03-21

Ton, My-Trang Nu (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

Reexamination Certificate

active

07015729

ABSTRACT:
A pipelined sample-and-hold circuit is provided. The circuit is pipelined such that processing of a held signal can continue into the next sample phase. Also, the pipelined sample-and-hold circuit includes a hold switch. The hold switch includes a boosted switch and dummy circuits. The boosted switch circuit is responsive to a boosted signal. The dummy circuits are arranged for charge injection cancellation responsive to another boosted signal that is a substantially inverse of the boosted signal.

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K. Nagaraj, D. Martin, M. Wolfe, R. Chattopadhyay, S. Pavan, J. Cancio anc T.R. Viswanathan, “A Dual-Mode 700-Msamples/s 6-bit 200-Msamples/s 7-bit A/D Converter in a 0.25um Digital CMOS Process”, IEEE Journal of Solid-State Circuits, vol. 35, No. 12, pp. 1760-1768, Dec. 2000.
C. Eichenberger and W. Guggenbuhl, “Dummy Transistor Compensation of Analog MOS Switches”, IEEE Journal of Solid-State Circuits, vol. 24, No. 4, pp. 1143-1146, Aug. 1989.

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