SAR ADC providing digital codes with high accuracy and high...

Details SAR ADC providing digital codes with high accuracy and high... SAR ADC providing digital codes with high accuracy and high...

2005-10-25

2005-10-25

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S156000

Reexamination Certificate

active

06958722

ABSTRACT:
An aspect of the invention improves accuracy of digital codes generated at the output of a SAR ADC by using multiple reference voltages. A first reference voltage is used to generate an equivalent voltage corresponding to previous resolved bits and a second reference voltage is used to generate equivalent voltage corresponding to the bits being presently resolved. Another aspect of the present invention provides an ADC with high SNR as well as high throughput performance. Such a feature may be achieved by resolving some of the MSBs of the digital code using a high speed and low SNR DAC and remaining bits of the digital code using a high SNR DAC.

REFERENCES:
patent: 5138319 (1992-08-01), Tesch
patent: 5534864 (1996-07-01), Ono et al.
patent: 5638075 (1997-06-01), Nakajima
patent: 6167132 (2000-12-01), Krone et al.
patent: 6686864 (2004-02-01), Moreland
patent: 6844840 (2005-01-01), Melanson
patent: 2003/0123646 (2003-07-01), Chakravarthy
patent: 1341394 (2003-03-01), None

Affiliated with

Also associated with

Rating

SAR ADC providing digital codes with high accuracy and high... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with SAR ADC providing digital codes with high accuracy and high..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SAR ADC providing digital codes with high accuracy and high... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3443597