Low power delta sigma converter

Details Low power delta sigma converter Low power delta sigma converter

1996-07-01

1998-05-19

Gaffin, Jeffrey A.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

341118, H03M 300

Patent

active

057541310

ABSTRACT:
A delta sigma modulator that has a low power dissipation without sacrificing modulator resolution includes, in one embodiment, a current mode digital to analog converter (DAC) in shunt with a conventional op amp in the first stage of the delta sigma modulator. By adding the current mode DAC in shunt with the first (or only) stage op amp of the delta sigma modulator, the slewing current needed during transients is provided by the combination of the op amp and DAC output signals. Since the DAC provides the slewing current required for the output signal change, the op amp need not apply the slewing current and therefore need only operate at low quiescent power.

REFERENCES:
patent: 5065157 (1991-11-01), Ribner et al.
patent: 5103229 (1992-04-01), Ribner
patent: 5142286 (1992-08-01), Ribner et al.
patent: 5148166 (1992-09-01), Ribner
patent: 5181032 (1993-01-01), Ribner
patent: 5187482 (1993-02-01), Tiemann et al.
patent: 5223753 (1993-06-01), Lee et al.
patent: 5283578 (1994-02-01), Ribner et al.
patent: 5392039 (1995-02-01), Thurston

Affiliated with

Also associated with

Rating

Low power delta sigma 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 Low power delta sigma converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low power delta sigma converter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1856795