Amplifiers – Signal feedback – In cascade amplifiers
Reexamination Certificate
2006-12-21
2008-07-29
Nguyen, Patricia (Department: 2817)
Amplifiers
Signal feedback
In cascade amplifiers
C330S098000, C330S107000
Reexamination Certificate
active
07405616
ABSTRACT:
A differential transimpedance amplifier circuit comprises first, second, third and fourth operational amplifiers having a first inverting input, a first non-inverting input, a first inverting output and a first non-inverting output. A first feedback element communicates with the second non-inverting input and the second inverting output. A second feedback element communicates with the second inverting input and the second non-inverting output. A third feedback element communicates with the third non-inverting input and the first inverting output. A fourth feedback element communicates with the third inverting input and the first non-inverting output. A fifth feedback element communicates with the fourth inverting input and the first inverting output. A sixth feedback element communicates with the fourth non-inverting output and the first non-inverting output.
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Nguyen Patricia
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