Filter arrangement

Details Filter arrangement Filter arrangement

1987-03-31

1988-11-22

Wan, Gene

Amplifiers

With semiconductor amplifying device

Including signal feedback means

330109, H03F 134

Patent

active

047868805

ABSTRACT:
In a filter arrangement, a first junction capacitor is arranged between the inverting output and the non-inverting input of a fully balanced amplifier and a second junction capacitor is arranged between the non-inverting output and the inverting input. Additionally, a first resistor is arranged between a first input terminal and the non-inverting input and a second resistor is arranged between a second input terminal and the inverting input. A first current source is connected to the non-inverting input and a second current source is connected to the inverting input. The current sources produce the reverse voltages for the junction capacitors across the resistors to define the capacitance values of these capacitors.

REFERENCES:
patent: 4509019 (1985-04-01), Banu et al.

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