Differential amplifier including balanced two terminal series RC

Details Differential amplifier including balanced two terminal series RC Differential amplifier including balanced two terminal series RC

1986-06-30

1987-12-29

LaRoche, Eugene R.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330307, H03F 345, H03F 314

Patent

active

047163798

ABSTRACT:
A differential amplifier manufactured in integrated circuit form in a semiconductor substrate includes first and second differentially coupled input transistors. The emitters of the input transistors are coupled to a first source of supply voltage (e.g. V.sub.cc) and the collectors of the input transistors are coupled via load devices to a second source of supply voltage (e.g. ground). An RC gain reduction network is provided between the collectors of the input transistors and implemented in such a manner so as to provide substantially equal parasitic capacitances at the collectors of each of the input devices.

REFERENCES:
patent: 3408533 (1968-10-01), Gates
patent: 4365208 (1982-12-01), Harford
patent: 4468627 (1984-08-01), Fushiki
patent: 4626881 (1986-12-01), Kishi et al.

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