Patent ID: 7944290
Filing Date: 2011-05-17
Classification: H03F

Abstract:
1. An integrated circuit comprising: a first trans-impedance amplifier that includes a first cascode amplifier; and a second trans-impedance amplifier that includes a second cascode amplifier, the second cascode amplifier and the first cascode amplifier sharing an input transistive element; where the first cascode amplifier is coupled to one or more first switches that disable the first trans-impedance amplifier, the second cascode amplifier is coupled to one or more second switches that disable the second trans-impedance amplifier, and control logic coupled to the one or more first switches and the one or more second switches disables at least one of the first trans-impedance amplifier or the second trans-impedance amplifiers; where the first cascode amplifier includes a first resistive element with a first impedance, and the second cascode amplifier includes a second resistive element with a second impedance; the second impedance being distinct from the first impedance.