Method and circuit for amplitude compensation in a...

Details Method and circuit for amplitude compensation in a... Method and circuit for amplitude compensation in a...

2007-09-11

2007-09-11

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Converter compensation

C341S144000

Reexamination Certificate

active

11388594

ABSTRACT:
An amplitude-compensated digital-to-analog converter circuit and method of compensation. A unipolar digital-to-analog converter is provided, having a reference connection and a pair of differential, unipolar signal outputs. A sensing circuit senses the common mode component of the differential outputs and produces a common mode signal. A reference source produces a first reference signal, and a differential control amplifier compares the common mode signal to the first reference signal and applies a second reference signal applied to the reference connection of the digital-to-analog converter, thereby stabilizing the reference current for the digital-to-analog converter. The circuit includes a single signal output reference to ground and a multiple-pole low-pass filter.

REFERENCES:
patent: 4583118 (1986-04-01), Mallinson et al.
patent: 4682086 (1987-07-01), Mallinson et al.
patent: 4879505 (1989-11-01), Barrow et al.
patent: 5055847 (1991-10-01), Rybicki et al.
patent: 5287063 (1994-02-01), Izawa
patent: 5886657 (1999-03-01), Ahuja
patent: 6075354 (2000-06-01), Smith et al.
patent: 6940440 (2005-09-01), Iacob
patent: 2005/0073290 (2005-04-01), Marinca et al.
patent: 55-156422 (1979-05-01), None
patent: 56166628 (1981-12-01), None

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