Subranging A/D converter with converging digitally controlled vo

Details Subranging A/D converter with converging digitally controlled vo Subranging A/D converter with converging digitally controlled vo

1987-06-29

1988-06-07

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

324 99D, 340347M, H03M 136

Patent

active

047499842

ABSTRACT:
A subranging A/D converter generates high and low voltages using first and second DACs. A voltage divider receives the high and low voltages to generate plural reference voltages. A bank of comparators compares the analog voltage which is to be converted to each of the reference voltages, and a clocked logic circuit generates an intermediate digital signal indicative of the analog value relative to the plural reference voltages. The intermediate signal is used to decrement the high voltage and increment the low voltage, so that the reference voltages produced by the voltage divider assume subrange values. The process is repeated for as many clock cycles as is required to converge the high and low voltages to equal the analog voltage.

REFERENCES:
patent: 4122439 (1978-10-01), Ninomiya
patent: 4189714 (1980-02-01), Adam
patent: 4276543 (1981-06-01), Miller et al.
patent: 4635036 (1987-01-01), Yoshizawa
patent: 4641129 (1987-02-01), Doluca et al.
Hnatek, A User's Handbook of D/A and A/D Converters, 1976, J. Wiley & Sons, pp. 20 & 21.
The Engineering Staff of Digital Equipment Corp., Analog-Digital Conversion Handbook, 1964, pp. 20-22.
The Engineering Staff of Analog Devices, Inc., Analog-Digital Conversion Handbook, 6/1972, pp. I-54 to I-57.
Nordstrom, High-Speed Integrated A/D Converter, 1976 IEEE International Solid-State Circuits Conference, Digest of Technical Papers, pp. 150 & 151.
"High Linearity and Video Speed Come Together in A-D Converters", by Pratt, Electronics magazine, Oct. 9, 1980, pp. 167-170.
Basic D/A techniques are Summarized in the Datel Systems, Inc., Engineering Goldbook 76/77, vol. 3, pp. 12-16.

Affiliated with

Also associated with

Rating

Subranging A/D converter with converging digitally controlled vo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Subranging A/D converter with converging digitally controlled vo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subranging A/D converter with converging digitally controlled vo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-846990