Low distortion digital to analog converter and digital...

Details Low distortion digital to analog converter and digital... Low distortion digital to analog converter and digital...

2004-07-23

2009-08-25

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C375S295000

Reexamination Certificate

active

07579971

ABSTRACT:
The present invention is a digital to analog converter circuit that provides significantly lower distortion than achieved by digital to analog converter circuits having comparable speed and resolution utilizing the present art. The present invention provides linear or higher order transitions between clock transition time points rather than step transitions used in the present art. Distortion reduction can exceed 30 dB in the embodiment with linear sample-to-sample transitions and greater in alternate embodiments with non-linear transitions. In other embodiments, the present invention can provide low distortion at resolutions from 16 to 24 bits or more at sample rates typical of high-speed 8-bit devices of the present art.

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