Methods and apparatus for error cancelation in calibrated current sources are disclosed. In an example, a digital to analog converter to convert digital bits into an analog output signal is described, including a plurality of current sources, a calibrator, and a current source selector. The example current sources output substantially identical currents, and the calibrator is selectively coupled to sequentially calibrate the current sources to a reference current. The example current source selector assigns respective ones of the plurality of current sources to the digital bits in accordance with a bit-to-current source sequence selected to reduce current error in the analog output and changes the assignments based on the current source coupled to the calibrator.