Method of and apparatus for low noise current amplification
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United States of America Patent
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Mar 18, 1986
Issued Date -
N/A
app pub date -
Dec 22, 1983
filing date -
Jan 3, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This disclosure is concerned with novel techniques and circuit configurations for rendering high gain operational amplifiers and related differencing amplifiers adaptable for use with very low impedance signal sources to permit amplification of low-power signals with ultra-low noise, high D. C. stability, high gain, and wide frequency response, through development of the signal current as a very small increment on a much larger pre-existing current forced in opposite directions through an electronic switching device connected to such amplifier and producing minimal uncorrelated noise therein.
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