Patent ID: 8384573
Filing Date: 2013-02-26
Classification: H03F,H03M

Abstract:
1. A digital-to-analog converter (DAC) comprising: a digital segment having a digital data input configured to receive digital data; and an analog segment coupled to the digital segment and having an analog output configured to output an analog signal corresponding to the digital data, wherein the analog segment includes a discrete-time segment and a continuous-time segment, wherein the continuous-time segment is coupled directly to the discrete-time segment at a discrete-time/continuous-time interface, wherein the discrete-time segment comprises one or more gain stages, and wherein the continuous-time segment comprises a continuous-time integrator; wherein the analog segment further comprises a feedback structure configured to couple the analog output to the one or more gain stages to attenuate signal distortion at the analog output, and wherein a combined gain of the one or more gain stages is configured to determine a signal distortion attenuation characteristic of the analog segment.