Digital-to-analog converter for increasing number of bits conver

Details Digital-to-analog converter for increasing number of bits conver Digital-to-analog converter for increasing number of bits conver

1997-08-11

1999-10-19

Young, Brian

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341145, H03M 100

Patent

active

059696567

ABSTRACT:
The present invention is a digital-to-analog converter comprising: a core digital-to-analog converter which converts digital signal of first number of bits to analog signal, a generator of an addend whose duty corresponds to the digital signal of second number of bits, an adder which adds the addend as least significant bit to the digital signal of first number of bits and supplies its output to the core digital-to-analog converter, and a filter which is supplied with its input from the core digital-to-analog converter and eliminates the ripples of the input to provide a ripple-eliminated analog signal at its output terminal, whereby the digital-to-analog converter can converts a digital signal of number of bits which exceed the first number, more exactly is the sum of the first number and the second number, to an analog signal.

REFERENCES:
patent: 4006475 (1977-02-01), Candy et al.
patent: 5101204 (1992-03-01), Matsusako
patent: 5210711 (1993-05-01), Rossmere et al.
patent: 5321642 (1994-06-01), Goldberg

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