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:
Jul. 27, 2004
Filed:
Mar. 28, 2003
Bruce Troutman, Meridian, ID (US);
ZiLOG, Inc., San Jose, CA (US);
Abstract
A digital-to-analog converter (DAC) converts a digital signal into an analog signal. The DAC comprises a first capacitor network, a second capacitor network, a first amplifier, and a second amplifier. The first capacitor network includes at least one capacitor that has a weighted capacitance value. Similarly, the second capacitor network includes at least one capacitor that has a weighted capacitance value. The first amplifier has an input that couples to the first capacitor network. The first amplifier also has an output that couples to, and drives, the second capacitor network. The second amplifier has an input that couples to the second capacitor network. The output of the second amplifier constitutes the analog signal.