Successive approximation analog to digital converter

Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

341122, 341145, 341155, H03M 146

Patent

active

049070029

ABSTRACT:
In a successive approximation analog to digital converter, an analog signal to be converted to a digital signal is held in a local digital to analog converter. The analog signal thus held is sampled dependent on the bit order of the digital signal, and the sampled analog signal is subjected to a successive bit comparison in a first comparator. A successive approximation register controls the local digital to analog converter to perform the sampling of the held analog signal, and holds the results of the successive bit comparison to provide the digital signal. Second and third comparators compare the analog signal and two reference signals, so that the successive bit comparison is performed from the MSB to the LSB where a voltage of the analog signal is between voltages of the two reference signals, while the successive bit comparison is performed from the second significant bit to the LSB where the analog signal voltage is outside a range between the voltages.

REFERENCES:
patent: 4350975 (1982-09-01), Haque et al.
patent: 4381496 (1983-04-01), Carter
patent: 4385286 (1983-05-01), Haque
patent: 4415882 (1983-11-01), Akazawa et al.
patent: 4593270 (1986-06-01), White
patent: 4647903 (1987-03-01), Ryu
patent: 4649371 (1987-03-01), Kolluri
patent: 4764750 (1988-08-01), Kawada
patent: 4831381 (1989-05-01), Hester
Electronic Engineer, Dec., 1979, "A One-Chip A/D Converter In MOS", pp. 82-87, M. J. Walsh.
IEEE Journal of Solid-State Circuits, vol., SC-10, No. 6, Dec., 1975 "All-MOS Charge Redistribution Analog-to-Digital Conversion Techniques"-Part 1, pp. 371-385, James L. McCreary & Paul R. Gray.
CH1993-5/84-0000-1202 1984 IEEE, CMOS Analog Cells for General Purposes A/D Conversion in Custom and Semi-Custom Applications, pp. 1202-1206, Jeffrey R. Ireland, Michael B. Terry and David Allstot.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Successive approximation analog to digital converter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Successive approximation analog to digital converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Successive approximation analog to digital converter will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-50228

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.