Digital to analog device and digital to analog manner

摘要

P To perform highly precise request current value code/current conversion while hardly increasing circuit scale. PSOLUTION: The digital/analog conversion apparatus includes: a digital value generating circuit for converting a request current value code into a digital code and outputting the digital code; a digital/analog voltage converting circuit for outputting an analog voltage in response to the digital code; a voltage/current converting circuit for converting the analog voltage into a current and outputting an output current; and a current detection circuit for converting the output current of the voltage/current converting circuit into a digital value and feeding the digital value back to the digital value generating circuit. The digital value generating circuit sets a correction amount in conversion into the digital code based ON the fed-back digital value. PCOPYRIGHT: (C)2010 and JPO& INPIT