Method of linearizing variations in the transfer characteristic

Details Method of linearizing variations in the transfer characteristic Method of linearizing variations in the transfer characteristic

1995-02-28

1997-06-10

Young, Brian K.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341140, H03M 166

Patent

active

056380739

ABSTRACT:
A method is provided for linearizing variations in a transfer characteristic of a digital-to-analog (D/A) converter to which a digitized input signal is fed for being converted to an analog output signal. The method includes balancing the D/A converter so that essentially only negative differential variations result in the transfer characteristic at identified locations; determining amplitudes of the negative differential variations; and adding, with an inverse operational sign, the respective amplitudes of the negative differential variations to the input signal of the D/A converter at the respective locations of the variations.

REFERENCES:
patent: 4316178 (1982-02-01), Shibayama et al.
patent: 4340882 (1982-07-01), Maio et al.
patent: 4835535 (1989-05-01), Shibayama et al.
patent: 5457714 (1995-10-01), Engel et al.
Frederick G. Weiss et al., "A 14-Bit, 1 Gs/s DAC for Direct Digital Synthesis Applications", IEEE 13th Annual GaAsIC Symposium, Technical Digest, 1991, pp. 361-364.

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