| 摘要 |
<p>A digital-to-analog converter for converting digital signals, such as audio or video signals, into analog signals, is disclosed. With the present digital-to-analog converter, a pair of equilibrium output signals P(+) and P(-) from a 1-bit D/A converter IC, made up of an oversampling filter, noise shaper and a pulse converter, are supplied to a pair of field effect transistors connected in a drain common configuration. A constant current I0 is supplied to the common drain from a constant current source and at least one of the source output currents is converted by an output circuit into a voltage. In this manner, a 1-bit D/A converted output signal freed of fluctuations of the power source is outputted at an output terminal. <IMAGE></p> |
