Digital to analogue voltage converter

A digital to analogue voltage converter comprising:

• a first resistor string having a plurality of resistors between a first end of the first resistor string and a second end of the first resistor string;
• and
• a plurality of digital to analogue voltage converter stages, each digital to analogue voltage converter stage coupled to said first resistor string and comprising:
• a voltage buffer;
• a first switching stage coupled to the first resistor string, the first switching stage configured to provide an input to the voltage buffer in dependence on receiving a first sub-word of a digital input of the digital to analogue voltage converter;
• a second resistor string having one or more resistors, wherein a first end of the second resistor string is coupled to a current source and a second end of the second resistor string is coupled to an output of the voltage buffer;
• and
• a second switching stage coupled to the second resistor string, the second switching stage configured to provide an analogue voltage as an output of the digital to analogue voltage converter stage in dependence on receiving a second sub-word of the digital input of the digital to analogue voltage converter.