Precision A/D converter utilizing a minimum of interface interco

Details Precision A/D converter utilizing a minimum of interface interco Precision A/D converter utilizing a minimum of interface interco

1988-10-18

1990-06-26

Shoop, Jr., William M.

Coded data generation or conversion

Converter compensation

341120, 341139, 341141, 341155, H03M 118

Patent

active

049375750

ABSTRACT:
An A/D converter circuit generates a precise digital signal which accurately corresponds to an analog input signal. The A/D converter comprises a converter element, having a first and second, input terminal for receiving control signals, and having an output terminal, and further having at least one analog input terminal. The analog input signal is coupled to the analog input terminal, for converting the analog input signal to an uncorrected digital signal. The uncorrected digital signal includes inaccuracies of the parameter differentials of the converter element. A memory unit, stores information defining the actual parameter values of the converter element. A processor, controls the conversion of the analog input signal to the precise digital signal, wherein the actual parameter values are applied to the uncorrected digital signal thereby removing the inaccuracies of the converter element to obtain the precise digital signal.

REFERENCES:
patent: 4141065 (1979-02-01), Sumi et al.
patent: 4149256 (1979-04-01), Sumi et al.
patent: 4151518 (1979-04-01), Jansson et al.
patent: 4309767 (1982-01-01), Andow et al.
patent: 4425561 (1984-01-01), Whiteside et al.
patent: 4510569 (1985-04-01), Takao et al.
patent: 4567466 (1986-01-01), Bozarth et al.

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