Current-mode amplification system, and corresponding operational amplifier, gain section and amplification element
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United States of America Patent
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Nov 28, 1995
Grant Date -
N/A
app pub date -
Sep 26, 1994
filing date -
Sep 27, 1993
priority date (Note) -
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Abstract
A current-mode amplification system including a first gain section and at least one second gain section chained together to form a chain of gain sections. The first gain section containing a first amplifier and a first low-pass filter. Each second gain section contains: a second amplifier having (1) a first input receiving the amplified and filtered output current from the preceding gain section in the chain, and (2) a second input receiving an input current of the amplification system, and delivering an amplified output current; an activator/deactivator for activating/deactivating the second input; and a second low-pass filter, the low-pass filter of each of the chained-together gain sections having a high cut-off frequency, the high cut-off frequencies of the various gain sections increasing from the input to the output of the amplification system.
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