Patent ID: 9698815
Date: 2017-07-04
CPC Classifications: H03M

Claim:
1. A multiplying digital to analog converter (MDAC), comprising: first and second inputs configured to receive first and second differential input signals; a differential amplifier having first and second differential input nodes and first and second differential output nodes; a first capacitor having one node coupled to the first differential input node and another node coupled to the first input via a first switch and further coupled to at least one reference voltage supply node via at least one further switch; and a second capacitor having a node coupled to the first differential input node; a third capacitor having a node coupled to the first differential input node; and a fourth capacitor having one node coupled to the first differential input node and another node coupled to the first differential output node; wherein a capacitance of each of the second and third capacitors is equal to one half of a capacitance of each of the first and fourth capacitors.