In this paper, an analysis of the clock-feedthrough effects in
switched-current (SI)' circuits will be presented. The clock-feedthrough
effects caused by the non-ideal characteristic of MOS
switches when they are turned off limit the accuracy of the analog
track-and-hold (T/H) circuits. A model to analyze and characterize this
effect is established. A current-feedthrough cancellation technique is
developed for analog/digital applications. This circuit allows SI filters
to be implemented with small transistor sizes and still performs
relatively well compared with the existing techniques. A SI lowpass
biquadratic filter with a cutoff frequency of 5 KHz and a SI T/H circuit
were implemented and fabricated using a two micron P-well CMOS
process technology from MOSIS (MOS Integration Service). / Graduation date: 1992
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/37409 |
| Date | 17 June 1991 |
| Creators | Young, David Y. W. |
| Contributors | Allstot, David J. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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