Method and circuit for dynamic calibration of flash analog to digital converters

A circuit for dynamically calibrating an analog to digital converter, said circuit comprising:

• a voltage source having an input voltage signal;
• a driver receiving said input voltage signal, wherein said driver outputs a driver output signal;
• a flash circuit receiving said driver output signal, wherein said flash circuit outputs a comparison result;
• an encoding logic unit encoding said comparison result into n digital bits as an output signal, wherein said output signal comprises gain and offset data;
• and
• a calibration engine connected to said encoding logic and receiving said output signal,
• wherein said calibration engine controls an operation of said driver based on said gain and offset data.

A method for dynamically calibrating an analog to digital converter, said method comprising:

• inputting a voltage signal from a voltage source;
• sending said voltage signal to a driver;
• outputting a driver output signal from said driver;
• sending said driver output signal to a flash circuit;
• outputting a comparison result from said flash circuit;
• sending said comparison result to an encoding logic unit;
• encoding said comparison result into n digital bits as an output signal, wherein said output signal comprises gain and offset data;
• inputting said n digital bits into a calibration engine;
• outputting a calibration signal from said calibration engine based on said gain and offset data;
• and
• controlling an operation of said driver using said calibration signal.