Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2005-08-30
2005-08-30
Ton, My-Trang Nu (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
C327S089000
Reexamination Certificate
active
06937071
ABSTRACT:
A differential CMOS amplifier includes two CMOS inverters and biasing circuitry providing feedback loops across the output and input of each inverter. The biasing circuitry provides linear biasing so that the inverters can apply a desired gain to a pair of high frequency input signals (i.e., a differential input signal). The biasing circuitry can include operational amplifiers (op-amps) for providing positive feedback control between the output and input of the inverters. The inputs of the inverters can be regulated by this feedback loop such that their outputs are driven to the reference voltage, thereby forcing the inverters to operate in their linear regions so that non-distorting amplification can be applied to the input AC signals.
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Bever Hoffman & Harms LLP
Micrel Incorporated
Nu Ton My-Trang
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