Programmable capacitor array and method of programming

Details Programmable capacitor array and method of programming Programmable capacitor array and method of programming

1994-11-14

1997-04-29

Young, Brian K.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

H03M 100

Patent

active

056253613

ABSTRACT:
A programmable capacitor array (10, 10') and a method for programming the programmable capacitor array (10, 10'). The programmable capacitor array (10, 10') includes an array of capacitors (C.sub.0 -C.sub.n), wherein each capacitor of the array of capacitors (C.sub.0 -C.sub.n) has first and second terminals. The first terminal of each capacitor may be coupled to a first circuit node (11) or to a first reference terminal (13). Likewise, the second terminal of each capacitor may be coupled to a second circuit node (12) or to a second reference terminal (14). One or more capacitors of the array of capacitors (C.sub.0 -C.sub.n) may be selectively coupled across the first (11) and second (12) circuit nodes or coupled across the first (13) and second (14) reference terminals, thereby permitting each capacitor to be electrically isolated from the array of capacitors (C.sub.0 -C.sub.n).

REFERENCES:
patent: 5117206 (1992-05-01), Imamura
patent: 5229772 (1993-07-01), Hanlon
patent: 5235335 (1993-08-01), Hester et al.
"Signal Processing", C. Caillon, J.P. Roche, C. Terrier, M. Schmotzer, Elektronik, vol. 35, No. 8, Apr. 1986, Munchen DE, pp. 54-62.
"Programmable Switched-Capacitor Low-Pass Ladder Filters", Howard M. Sandler, Adel S. Sedra, IEEE Journal of Solid-State Circuits, vol. SC-21, No. 6, Dec. 1986, New York, USA, pp. 1109-1119.

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