Preamplifier and method
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United States of America Patent
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May 8, 2018
Issued Date -
N/A
app pub date -
Jan 29, 2015
filing date -
Jan 29, 2015
priority date (Note) -
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Abstract
In accordance with an embodiment, an amplification circuit includes an amplifier connected to a filter, wherein the amplifier has an input and an output and the filter has an input connected to the output of the amplifier. The amplification circuit includes a comparator that has an input connected to the output of the filter and an input coupled for receiving a reference voltage. The output of the comparator is connected to the input of the amplification circuit. In accordance with another embodiment, a method for generating an output signal is provided that includes generating an amplified signal by amplifying a signal that has an input portion and a feedback portion. A comparison signal is generated in response to comparing the signal with a reference signal and the comparison signal is used to set the output voltage to be substantially equal to the reference voltage.
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