Patent ID: 8456339
Filing Date: 2013-06-04
Classification: H03M

Abstract:
1. A single-ended delta sigma analogue to digital converter comprising: an integrator having first and second differential inputs for receiving an input analogue signal, the integrator having differential outputs; a quantiser having first and second differential inputs which receive signals output by the integrator, and an output which provides a digital output signal of the delta sigma analogue to digital converter; and a digital to analogue converter having an input which is connected to an output of the delta sigma analogue to digital converter, and first and second differential outputs, wherein the first output of the digital to analogue converter is connected to the first input of the integrator, the second output of the digital to analogue converter is not connected to the second input of the integrator and the second input of the integrator is configured to receive a fixed reference voltage such that the delta sigma analogue to digital converter operates in a single-ended mode.