Digital-to-analog converter

Details Digital-to-analog converter Digital-to-analog converter

H - Electricity

03

M

354/97

H03M 1/74 (2006.01) H03M 1/00 (2006.01) H03M 1/06 (2006.01)

Patent

CA 1259705

ABSTRACT OF THE DISCLOSURE A digital-to-analog converter includes a plurality of constant current sources (401 - 407) arrayed in a prescribed order and connected with a grounding lead wire (70). The respective constant current sources (401 - 407) are selectively connected to a first bus (303) by corresponding switches (501 - 507), respectively. A decoder (2) outputs switching signals to the switches (501 - 507). The switching signals are outputted from the decoder (2) to the switches (501 - 507) so that the constant current sources symmetrically positioned with respect to the center of an array of the plurality of constant current sources (401 - 407) are sequentially connected to the first bus (303). Thus, the digital-to-analog converter is improved in linearity.

506457

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