Patent ID: 6778119
Filing Date: 2004-08-17
Classification: H03M

Abstract:
A digital to analog converter comprises:differential amplifier having a non-inverting input, an inverting input, an non-inverting output, an inverting output, and a gain network coupled to the non-inverting input, the inverting input, the non-inverting output, and the inverting output, wherein the inverting and non-inverting outputs provide an analog output of the digital to analog converter; plurality of current sources; and conversion control circuitry operably couples a first set of the plurality of current sources to the inverting input or the non-inverting input of the differential amplifier in accordance with a first set of bits of a digital input and couples, via at least one inversion, a second set of the plurality of current sources to the inverting or the non-inverting input of differential amplifier based on a second set of bits of the digital input.