| US 7,498,962 B2 | ||
| Analog-to-digital converter with low power track-and-hold mode | ||
| Donald E. Alfano, Round Rock, Tex. (US); Danny J. Allred, Austin, Tex. (US); Douglas S. Piasecki, Austin, Tex. (US); Kenneth W. Fernald, Austin, Tex. (US); Ka Y. Leung, Austin, Tex. (US); Brian Caloway, Georgetown, Tex. (US); Alvin Storvik, Austin, Tex. (US); Paul Highley, Austin, Tex. (US); and Douglas R. Holberg, Wimberley, Tex. (US) | ||
| Assigned to Silicon Labs CP, Inc., Austin, Tex. (US) | ||
| Filed on Dec. 29, 2006, as Appl. No. 11/618,644. | ||
| Application 11/618644 is a continuation of application No. 09/885459, filed on Jun. 19, 2001, granted, now 7,171,542, filed on Jan. 30, 2007. | ||
| Claims priority of provisional application 60/212653, filed on Jun. 19, 2000. | ||
| Prior Publication US 2007/0103357 A1, May 10, 2007 | ||
| Int. Cl. H03M 1/00 (2006.01) | ||
| U.S. Cl. 341—122 [341/155] | 21 Claims |
| 1. A method for converting analog data to digital data, comprising the steps of:
operating an analog-to-digital data converter in a tracking mode to sample an input signal and in a convert mode to convert
the sampled input signal after sampling to a digital signal; and
controlling with a controller the operation of the analog-to-digital data converter to operate in different track modes of
operation by providing at least one step wherein the tracking mode of operation is controlled to initiate at a predetermined
time to begin the sampling operation after a non tracking period wherein no sampling occurs and no conversion operation occurs.
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