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Low-sensitivity active filters using the operational amplifier pole

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2 Author(s)

The utilization of the operational amplifier pole in the design leads to filters with satisfactory high-frequency performance. The approach reduces the number of capacitors required leading to circuits suitable for integration. Circuit arrangements for a bandpass filter and a second-order Butterworth low-pass filter have been suggested using only resistors and two operational amplifiers. The circuits have low parameter sensitivities.

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Circuits and Systems, IEEE Transactions on  (Volume:21 ,  Issue: 2 )