Patent ID: 8836560

Claim:
A digital to analog converter (DAC) comprising: first and second nodes; a first switching device; a second switching device; a switch control module that: based on a first set of one or two binary bits, configures the first and second switching devices such that the first switching device connects a first current to the first node and the second switching device connects a second current to the second node; based on a second set of one or two binary bits, configures the first and second switching devices such that the first switching device connects the first current to the second node and the second switching device connects the second current to the first node; and based on a third set of one or two binary bits, configures the first and second switching devices such that the first and second switching devices disconnect the first current and the second current from the first and second nodes; at least one of: a tap current module that generates the first current based on a first reference voltage; and a sink current module that generates the second current based on a second reference voltage; a current source reference generator module that generates the first reference voltage based on a target current; a current sink reference generator module that generates the second reference voltage based on the target current; and a conversion control module that sets the target current based on a digital signal input to the DAC.