Full differential type analog circuit having parallel oppositely

Details Full differential type analog circuit having parallel oppositely Full differential type analog circuit having parallel oppositely

1993-05-14

1995-06-13

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

327563, 330294, H03F 345

Patent

active

054246750

ABSTRACT:
A full differential type analog circuit includes a full differential type operational amplifier, a first network, a second network, and a third network. The full differential type operational amplifier has inverting and non-inverting input terminals and inverting and non-inverting output terminals. The first network is connected between the inverting input terminal and the non-inverting output terminal and has a first input terminal for inputting a signal to the inverting input terminal and a first output terminal connected to the non-inverting output terminal. The second network is connected between the non-inverting input terminal and the inverting output terminal and has a second input terminal for inputting a signal to the non-inverting input terminal and a second output terminal connected to the inverting output terminal. The third network is connected between the first and second networks and includes two capacitors having the same arrangements, each formed by parallelly connecting an upper capacitor electrode and a lower capacitor electrode formed on a semiconductor substrate in opposite directions.

REFERENCES:
patent: 4626881 (1986-12-01), Kishi et al.
patent: 5117205 (1992-05-01), Nauta
patent: 5283483 (1994-02-01), Laber et al.

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