Invention Grant
- Patent Title: DA converter and DA conversion method
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Application No.: US16352859Application Date: 2019-03-14
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Publication No.: US10666278B2Publication Date: 2020-05-26
- Inventor: Daisuke Matsuoka , Ryuzo Yamamoto , Tatsuya Chubachi
- Applicant: Asahi Kasei Microdevices Corporation
- Applicant Address: JP Tokyo
- Assignee: Asahi Kasei Microdevices Corporation
- Current Assignee: Asahi Kasei Microdevices Corporation
- Current Assignee Address: JP Tokyo
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2247ad0c
- Main IPC: H03M1/66
- IPC: H03M1/66 ; H03M1/08

Abstract:
To reduce distortion of output analog signals generated at a current-output DA converter. A DA converter that outputs a differential analog signal corresponding to an input digital signal is provided, including: a current output unit outputting a current corresponding to the digital signal to each of first and second wires; a converting unit outputting, as positive-side and negative-side analog signals, voltage signals based on currents flowing through the first and second wires, respectively; a first noise reducing unit having: a first switch switched to be or not to be electrically connected with the first wire; and a first buffer provided between the first switch and a reference potential; and a second noise reducing unit having: a second switch switched to be or not to be electrically connected with the second wire; and a second buffer provided between the second switch and the reference potential.
Public/Granted literature
- US20190288701A1 DA CONVERTER AND DA CONVERSION METHOD Public/Granted day:2019-09-19
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