Analog-to-digital converter

Details Analog-to-digital converter Analog-to-digital converter

1994-09-21

1996-10-29

Gaffin, Jeffrey A.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341155, H03M 138, H03M 112

Patent

active

055700918

ABSTRACT:
An analog-to-digital converter mainly comprises an analog-to-digital conversion unit which produces a digital output, as an equivalent of an analog input supplied thereto, by performing a successive approximation. Herein, an instantaneous value of the analog input is compared with a reference signal so as to determine the digit in each of the bits of the digital output. The analog-to-digital converter can further comprise an analog comparator, an analog amplifier and a digital attenuator in order to reduce an effect of the noise. The analog amplifier amplifies the analog input by a gain so as to produce an intermediate analog signal. The analog-to-digital conversion unit converts the intermediate analog signal into an intermediate digital signal. The digital attenuator attenuates the intermediate digital signal by an attenuation rate so as to produce the digital output. The attenuation rate is determined such that a product, obtained by multiplying the gain and attenuation rate together, is normally equal to a value `1`. The analog comparator evaluates the level of the analog input by comparing it with predetermined levels in turn. Thus, the analog comparator controls the gain of the analog amplifier in accordance with a result of the evaluation.

REFERENCES:
patent: 4851842 (1989-07-01), Iwamatsu
patent: 4983969 (1991-01-01), Iwamoto et al.
patent: 5262686 (1993-11-01), Kurosawa

Affiliated with

Also associated with

Rating

Analog-to-digital converter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Analog-to-digital converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog-to-digital converter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1788734