Amplification device having an adjustable bandwidth
First Claim
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1. A device for amplifying electronic signals, comprising:
- an amplifier having an input and an output, and a plurality of feedback loops placed between the output and the input of the amplifier, which feedback loops are arranged so that each feedback loop has an adjustable gain and all the feedback loops jointly form an assembly having an equivalent impedance, which is substantially independent of the selected gain settings.
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Abstract
The invention relates to a device for amplifying electronic signals, including:
an amplifier PRA, and
a plurality of feedback loops G1, G2 placed between the output and the input of the amplifier, which feedback loops are arranged so that each feedback loop has an adjustable gain and all the feedback loops jointly form an assembly having an equivalent impedance which is substantially independent of the gain settings selected.
Thanks to the invention, the amplification bandwidth can be easily adjusted without adversely affecting the performance of the device in terms of noise and high cut-off frequency.
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Citations
6 Claims
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1. A device for amplifying electronic signals, comprising:
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an amplifier having an input and an output, and a plurality of feedback loops placed between the output and the input of the amplifier, which feedback loops are arranged so that each feedback loop has an adjustable gain and all the feedback loops jointly form an assembly having an equivalent impedance, which is substantially independent of the selected gain settings. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification