12-Bit 8-Channel Data Acquisition System Interfaces to IBM PC Serial Port
DN35 Design Notes (Linear Technology). . .
HIGH PASS ACTIVE FILTER COLLECTION
This is a collection of inverting and non-inverting active high pass filter circuits. I included one, two three, four and six pole filter circuits. You can change the component value ratios shown to achieve any frequency cut-off you may need. The circuit does not specify an operational Amplifier. The circuits should be used to select the needed resistor and capacitor components for a particular frequency knee and slope.
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