Abstract: A converter for converting digital data into differential analog signals includes a temperature and process independent bias voltage generator for generating a bias voltage and a digital to differential converter for converting a digital word into differential voltages. The digital to differential converter includes a first switching circuitry controlled by the digital word for selectively coupling a first output node to the bias voltage and a second output node to a supply voltage. Second switching circuitry controlled by a complement of the digital word selectively couples the first output node to the supply voltage and the second output node to the bias voltage. The first and second pairs of switches substantially simultaneously conduct at a desired differential cross-over voltage at the first and second output nodes based on the choice of the bias voltage such that the digital to differential analog converter operates from the operating voltage to the operating voltage plus the bias voltage range.