Differential input receiver and method for reducing noise

An integrated circuit receiver comprising:

• a differential input receiver having a first differential input transistor, a second differential input transistor and an output, wherein the first differential input transistor has an input that is operatively coupled to receive a first reference voltage, and wherein the second differential input transistor has a input that is operatively coupled to receive an input voltage;
• and
• a variable well voltage supply circuit operatively responsive to the output, a second reference voltage and a third reference voltage such that the variable well voltage supply circuit changes the input transistors threshold voltages by varying the first and second well voltages associated with each of the first differential input transistor and second differential input transistors in opposite directions.

A method for reducing noise for an integrated circuit receiver comprising the steps of:

• receiving an input signal by a differential input receiver;
• and
• changing the input transistors threshold voltages to provide differential receiver hysteresis by varying a first and a second well voltage associated with each of a first differential input transistor and a second differential input transistor in the differential input receiver.