Amplifiers – Combined with automatic amplifier disabling switch means
Reexamination Certificate
2011-05-17
2011-05-17
Nguyen, Hieu P (Department: 2817)
Amplifiers
Combined with automatic amplifier disabling switch means
C330S295000, C330S307000
Reexamination Certificate
active
07944290
ABSTRACT:
Systems and apparatus for converting an input current signal into two or more output voltage signals on an integrated circuit. In one aspect, an integrated circuit includes 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 amplifier.
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Umeda Daisuke
Yeung Pak-Ho
Fish & Richardson P.C.
Nguyen Hieu P
Sumitomo Electric Industries Ltd.
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