Self-calibrating A/D and D/A converter

Details Self-calibrating A/D and D/A converter Self-calibrating A/D and D/A converter

1989-09-29

1990-11-13

Shoop, Jr., William M.

Coded data generation or conversion

Converter calibration or testing

341172, 341153, H03M 110

Patent

active

049705156

ABSTRACT:
A self-calibrating A/D and D/A converter operating according to the principle of successive approximation includes a weighted converter network, a calibration and correction network, network elements and switches associated with the network elements. A control configuration controls the converter network and the calibration and correction network through the switches for performing a conversion and correction phase as well as a calibration phase. A comparator feeds the converter network and the calibration and correction network back to the control configuration. The control configuration includes a single successive approximation register for controlling the converter network and the calibration and correction network in a multiplex mode.

REFERENCES:
patent: 4077035 (1978-02-01), Yee
patent: 4399426 (1983-08-01), Tan
patent: 4517549 (1985-05-01), Tsukakoshi
patent: 4679028 (1987-07-01), Wilson et al.
patent: 4709255 (1987-11-01), Welland et al.
patent: 4736189 (1988-04-01), Katsumata et al.

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