Differential field effect transistor amplifier having a compensa

Details Differential field effect transistor amplifier having a compensa Differential field effect transistor amplifier having a compensa

1978-07-17

1980-06-10

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330256, 330257, 330288, H03F 316, H03F 345

Patent

active

042075378

ABSTRACT:
An amplifier circuit is disclosed which includes a current supply circuit having a field effect transistor and negative feedback for degenerating the magnitude of the current supplied thereby. The negative feedback can be provided by a diffused resistor connected between the gate and source electrodes of the current supply field effect transistor. A differential amplifier which includes a pair of differentially coupled amplifying field effect transistors is coupled to the current supply circuit. The negative feedback enables the current supply device to provide a current which compensates the differentially coupled field effect transistors over processing while not deleteriously affecting the temperature characteristics thereof. A bipolar diode and a bipolar transistor can be included in the current supply for enabling the resistor to take up less chip area and for allowing more flexibility in the design of the geometry of the current supply, field effect transistor.

REFERENCES:
patent: 4053915 (1977-10-01), Cave
Sakai et al. "Complementary Power Fets with Vertical Structures" Nec. Research and Development Nos. 37-38, pp. 65-73, Apr.-Jul. 1975.
Electronic Design 4, vol. 21, No. 4, Feb. 15, 1973 p. A9.

Affiliated with

Also associated with

Rating

Differential field effect transistor amplifier having a compensa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential field effect transistor amplifier having a compensa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential field effect transistor amplifier having a compensa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-865473