Patent ID: 8717216

Claim:
A digital-to-analog converter (DAC) comprising: a plurality of resistor networks coupled together in series to form a ring; and a decoder configured to, based on a plurality of most significant bits of a digital code, couple first and second reference voltage nodes to the ring by closing first and second selected ones of a first plurality of switches; wherein the decoder is further configured to, based on a plurality of least significant bits of the digital code, couple a first output voltage node to the ring by closing a selected one of a second plurality of switches and couple a second output voltage node to the ring by closing a selected one of a third plurality of switches, wherein the decoder is configured to receive an N bit digital code having M most significant bits and L least significant bits, wherein plurality of resistor networks includes 2 M+1 −2 resistor segments and two output networks each including 2 L +1 resistor; wherein a differential output voltage provided by the DAC is based on the selected ones of the first, second, and third pluralities of switches that are closed.