Patent ID: 9634617
Date: 2017-04-25
CPC Classifications: H03F

Claim:
1. A multistage amplifier circuit, comprising: a first forward circuit, including a first amplifier having a first amplifier input to receive an input signal, and a second amplifier having a second amplifier input coupled with an output of the first amplifier, the second amplifier including a second amplifier output providing an output signal; a second forward circuit, including a third amplifier having a third amplifier input coupled to receive the input signal, the third amplifier having a third amplifier output coupled with the second amplifier input; and a sensor circuit coupled with the second forward circuit to sense nonlinear operation or slewing conditions of the multistage amplifier circuit, the sensor circuit having a sensor circuit output providing a sensor circuit output signal in a first state when nonlinear operation or slewing conditions are sensed in the multistage amplifier circuit, and in a second state when nonlinear operation or slewing conditions are not sensed in the multistage amplifier circuit, wherein an amplitude of a signal within the second forward circuit is maintained at a level when the sensor circuit output is in the first state.