| 摘要 |
An amplifier circuit includes a first amplifier module that includes an input and an output and that has first gain, a first bandwidth and a first output impedance. A second amplifier module includes an input that communicates with the input of the first amplifier module and an output and has a second gain that is less than the first gain, a second bandwidth that is greater than the first bandwidth and an output impedance that is less than the first output impedance. A capacitance communicates with the output of the second amplifier module and an output of the first amplifier module. The second amplifier module includes an operational transconductance amplifier.
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