Patent ID: 11929760
Assignee: ASAHI KASEI MICRODEVICES CORPORATION
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A DA converter for outputting an analog signal according to an input digital signal, the DA converter comprising:
a plurality of current output circuits to be input with the digital signal, and configured to output a current according to the digital signal to a corresponding wiring;
a conversion circuit provided with a plurality of feedback paths respectively coupled to wirings corresponding to the plurality of current output circuits, and configured to select at least one wiring among the wirings corresponding to the plurality of current output circuits and output an analog signal according to a current flowing in the selected wiring; and
a first noise reduction circuit provided with a plurality of first switches each of which is configured to switch whether to electrically connect to at least one wiring among the wirings corresponding to the plurality of current output circuits, and configured to reduce a noise component generated in at least one of the plurality of current output circuits from the electrically coupled wiring.