Patent ID: 9432004
Filing Date: 2016-08-30
CPC Classification: H03F,H03G,H03K

Claim Text:
1. A circuit, comprising: a controllable gain element having a differential input and an output and operable to effect gain offset and voltage offset compensation in response to a gain offset value and voltage offset value; a differential shunt circuit coupled to the differential input of the controllable gain element; a sensing circuit configured to sense a current operating condition of said circuit; and a control circuit operable responsive to said sensed current operating condition to: detect that the current operating condition of the circuit is outside a nominal operating condition; apply as said gain offset value a value selected as a function of the sensed current operating condition; actuate the differential shunt to connect terminals of the differential input to each other; sense a voltage at the output of the controllable gain element; and apply the sensed voltage as said voltage offset value.