Interleaved analog-to-digital converter (ADC) gain calibration

A system, comprising:

• a set of interleaved analog-to-digital converters (ADCs);
• and
• a full-scale reference generation circuit comprising an analog circuit and digital-to-analog converters (DACs), wherein the analog circuit is configured to generate full-scale reference voltages of full scales of each ADC in the set of interleaved ADCs,
• wherein the DACs are configured to provide variable currents that, at least in part, specify the full-scale reference voltages,
• wherein the variable currents correspond to full-scale corrections of the full scales of the set of interleaved ADCs,
• wherein the full-scale reference voltages correspond to the variable currents and a fixed current, and
• wherein at least a portion of the full-scale reference generation circuit is common to or shared by the set of interleaved ADCs.

A method for generating full-scale reference voltages, comprising:

• by a full-scale reference generation circuit comprising an analog circuit:
• receiving, from digital-to-analog converters (DACs), variable currents that, at least in part, specify the full-scale reference voltages;
• and
• generating, using the analog circuit and based at least in part on the variable currents, the full-scale reference voltages of full scales of each analog-to-digital converter (ADC) in a set of interleaved ADCs, wherein the variable currents correspond to full-scale corrections of the full scales of the set of interleaved ADCs, and
• wherein at least a portion of the full-scale reference generation circuit is common to or shared by the set of interleaved ADCs.