A high pass amplifier comprises a first amplifier including an input and an output. A second amplifier includes an input that communicates with the output of the first amplifier and an output. A first resistance includes a first end that communicates with the input of the first amplifier and an output that communicates with the output of the first amplifier. A first capacitance includes a first end that communicates with the input of the first amplifier. A second resistance includes a first end that communicates with a second end of the first capacitance and a second end that communicates with the output of the second amplifier. The high pass amplifier can be a differential mode amplifier.

 
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