Digital-to-analog converter
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United States of America Patent
Stats
-
Jan 3, 1995
Grant Date -
N/A
app pub date -
Feb 17, 1993
filing date -
Feb 17, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A digital-to-analog converter includes a decoder, a full differential type low-pass filter, and first to fourth switches. The decoder has first and second inputs and first and second outputs. The low-pass filter has first and second inputs and first and second outputs. The first switch has a first terminal connected to a first reference voltage source, a second terminal connected to the first input of the low-pass filter, and a third terminal as a control terminal connected to the first output of the decoder. The second switch has a first terminal connected to the first reference voltage source, a second terminal connected to the second input of the low-pass filter, and a third terminal as a control terminal connected to the second output of the decoder. The third switch has a first terminal connected to a second reference voltage source, a second terminal connected to the second input of the low-pass filter, and a third terminal as a control terminal connected to the first output of the decoder. The fourth switch has a first terminal connected to the second reference voltage source, a second terminal connected to the first input of the low-pass filter, and a third terminal connected to the second output of the decoder.
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