Ultra high input impedance/voltage range amplifier

Details Ultra high input impedance/voltage range amplifier Ultra high input impedance/voltage range amplifier

1976-12-08

1978-05-30

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including particular power supply circuitry

330300, H03F 304

Patent

active

040927016

ABSTRACT:
An ultra high input impedance and input voltage range amplifier wherein a low voltage input stage is cascaded with an emitter follower transistor stage which provides an excess current sink to keep the voltage across the input stage at a low value.

REFERENCES:
patent: 3233185 (1966-02-01), Young
patent: 3453554 (1969-07-01), Shoemaker
patent: 3678402 (1972-07-01), Tempel
Danilovic et al., "Voltage Stabilization of the Source-Follower Operating int", Electronic Engineering, Feb. 1969, pp. 221-223.
Todd, "Simplify DC Amplifier Design by Using FETs", Electronic Design, Feb. 1, 1966, pp. 64-68.
Thompson, "A Very High Input Impedance Buffer Using Field Effect Transistors", Electronic Engineering, Jun. 1966, pp. 370-373.

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