Patent ID: 8653859
Filing Date: 2014-02-18
Classification: G05F

Abstract:
1. An electronic circuit comprising: a differential input section comprising a first transistor having a first conductivity type and a second transistor having the first conductivity type, the first transistor having a first input node to receive a first input signal, and the second transistor having a second input node to receive a second input signal; a current mirror section coupled to the differential input section, the current mirror section comprising a third transistor having a second conductivity type and a fourth transistor having the second conductivity type, the third transistor and the fourth transistor coupled together at a common gate node; an operational amplifier having a positive amplifier input node connected to the first transistor and to the third transistor, a negative amplifier input node, and an amplifier output node coupled to the common gate node; a first inverter having a first inverter input node coupled to the second transistor and to the fourth transistor; and a compensation voltage generator coupled to the negative amplifier input node, and configured to provide a compensation voltage to replicate a switching threshold voltage of the first inverter.