Patent ID: 6163211
Filing Date: 2000-12-19
Classification: H03F

Abstract:
An amplifier, comprising:a cascode amplifier stage coupled to receive an input at an input node;an output node coupled to the cascode amplifier stage node, wherein the amplifier is configured to assert an output potential at the output node in response to the input; andfeedforward circuitry coupled between the input node and the cascode amplifier stage, wherein the feedforward circuitry is configured to provide a positive feedforward signal to the cascode amplifier stage while the output potential decreases, and to provide relatively less positive feedforward to the cascode amplifier stage while the output potential increases, wherein the feedforward circuitry is configured to cause rise times and fall times of the output potential in response to changes in the input to be within predetermined limits, with no more than a predetermined amount of overshoot at each rising edge and each falling edge of the output potential, and with at least substantially equal overshoot at said each rising edge and said each falling edge of the output potential.