Current summing digital-to-analog converter

Details Current summing digital-to-analog converter Current summing digital-to-analog converter

2007-02-06

2007-02-06

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S144000

Reexamination Certificate

active

11235334

ABSTRACT:
A current summing type D/A converter having a configuration of two or more steps is provided. In a D/A converter block of the first step, by adding current segments, upper bits are D/A converted, and one of the current segments in the first step is further supplied to a D/A converter block in a second step to be shunt by the D/A converter block in the second step, so that lower bits are D/A converted. The output current in the first step and the output current in the second step are then added each other. According to the foregoing method, the D/A conversion may be performed without causing a differential linearity error.

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