The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1986
Filed:
Feb. 27, 1985
Applicant:
Inventors:
Stephen H Kelley, Austin, TX (US);
Mathew A Rybicki, Austin, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3403 / ;
Abstract
An N bit converter, where N is an integer, is provided for effecting A/D and D/A conversions by utilizing a capacitor array and a resistor voltage divider string. The converter may be linear or nonlinear and the structure remains monotonic independent of the accuracy of the converter. Although monotonic, device count is minimized and only 2.sup.(N/2) stages are required to implement an N bit linear converter. Reduction of the number of circuit elements is achieved, in part, by shared use of decode circuitry for the most significant and least significant bits of the N bits.