Multibit digital to analog converter having deglitch means with

Details Multibit digital to analog converter having deglitch means with Multibit digital to analog converter having deglitch means with

1998-03-18

2000-06-13

Young, Brian

Coded data generation or conversion

Converter compensation

341144, 327379, 327544, H03M 106, H03M 166, H03K 1716, H03K 1730

Patent

active

060754737

ABSTRACT:
A D/A converter of a multibit type has improved performance by reducing dispersion of the electric currents of plural electric current sources as much as possible, in which the D/A converter has a constant electric current source (10) constructed by 2.sup.N (N=2, 3, - - - and here, N=16) constant electric current sources having constant electric current values equal to each other; selectors (7, 8) for selecting Di constant electric current sources according to input data Di {here, Di=0, 1, 2, 3, - - - , (2.sup.N -1)} having N-bits in input word length so as to use these 2.sup.N constant electric current sources one by one until a sum of values of one input data or continuous plural input data among these 2.sup.N constant electric current sources exceeds 2.sup.N ; and an electric current adding means (9) for adding each of the constant electric currents from the Di constant electric current sources selected by the selectors to each other.

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