Low voltage CMOS amplifier

Details Low voltage CMOS amplifier Low voltage CMOS amplifier

1978-01-25

1981-04-28

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including field effect transistor

330288, 330293, 330296, 331116FE, H03F 316

Patent

active

042648742

ABSTRACT:
A CMOS amplifier having a pair of CMOS load and amplifying devices connected in series, two parallel pairs of CMOS devices with interconnected gates to form current mirrors and connected to the gate of the load MOS device to compensate the gain for variations in power supply voltage, temperature and transistor parameters, a feedback MOS device having its source-drain path connected between the junction of the load and amplifying MOS and the gate of the amplifying MOS to provide nonlinear, negative feedback, and a resistor connected in parallel with the feedback MOS device to establish an initial self-biasing voltage level for the amplifying MOS below the threshold voltage of the feedback MOS.

REFERENCES:
patent: 2772607 (1973-11-01), Luckett et al.
patent: 3886464 (1975-05-01), Dingwall
patent: 4096444 (1978-06-01), Fellrath
patent: 4122414 (1978-10-01), Patterson

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