DAC with configurable output stage

A method comprising:

• providing an integrated circuit including:
• a DAC configured to output an analog signal,
• an output terminal, and
• an output stage arranged to receive the analog signal from the DAC,
• wherein the output stage is configured to operate in a voltage mode to supply the analog signal to the output terminal as a voltage signal, and in a current mode to supply the analog signal to the output terminal as a current signal;
• wherein the output stage includes first shared circuitry, voltage mode circuitry and current mode circuitry, wherein the integrated circuit is configured to combine the first shared circuitry with the voltage mode circuitry in a voltage mode, and combine the first shared circuitry with the current mode circuitry in a current mode, wherein the voltage mode circuitry and the current mode circuitry are arranged between an output of the first shared circuitry and the output terminal;
• receiving a control signal indicative of a selection of the voltage mode or the current mode;
• configuring the output stage to operate in the voltage mode or the current mode based on the control signal.

An integrated circuit comprising:

• a plurality of channels including a first channel and a second channel, each channel comprising:
• a DAC configured to output an analog signal,
• an output terminal, and
• an output stage arranged to receive the analog signal from the DAC,
• wherein each output stage is configured to operate in a voltage mode to supply the analog signal to the output terminal as a voltage signal, and in a current mode to supply the analog signal to the output terminal as a current signal;
• wherein each output stage includes first shared circuitry, voltage mode circuitry and current mode circuitry, wherein the integrated circuit is configured to combine respective first shared circuitry with respective voltage mode circuitry in the voltage mode, and combine respective first shared circuitry with respective current mode circuitry in a current mode, wherein the respective voltage mode circuitry and the respective current mode circuitry are arranged between an output of the respective first shared circuitry and the respective output terminal.