Digital-analog converting apparatus and test apparatus

Details Digital-analog converting apparatus and test apparatus Digital-analog converting apparatus and test apparatus

2009-12-18

2011-11-15

Lauture, Joseph (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S144000

Reexamination Certificate

active

08059021

ABSTRACT:
Provided is a DA conversion apparatus comprising a capacitor array DA converter that outputs to an output line an output voltage corresponding to a digital value input thereto; and a load changing section that changes a size of a load capacitance connected to the output line. The load changing section may set gain of the DA conversion apparatus with the size of the load capacitance connected to the output line being a constant capacitance unaffected by the digital value. The load changing section may include a load capacitor connected between the output line and a standard potential; a load-side switch connected in series with the load capacitor between the output line and the standard potential; and a load capacitance control section that controls the load-side switch.

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