Analog-to-digital converters utilizing gunn effect devices

Details Analog-to-digital converters utilizing gunn effect devices Analog-to-digital converters utilizing gunn effect devices

1975-07-02

1976-06-15

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

357 3, H03K 1317

Patent

active

039640604

ABSTRACT:
A parallel or serial analog-to-digital converter utilizing both Gunn effect devices and field effect transistors. The converters are based on a differential pair of amplifiers consisting of two or more Gunn effect devices, one of which is biased close to the knee of the current-voltage characteristic before the negative resistance region. Hence a clock pulse will bias one of the devices into the negative resistance region while the other device is now biased close to the knee to be able to respond to the analog signal. This is due to the fact that both devices are biased by a common constant current source, including a field effect transistor.

REFERENCES:
patent: 2950469 (1960-08-01), Raasch
patent: 3178700 (1965-04-01), Kaenel
patent: 3242479 (1966-03-01), Euler
patent: 3594618 (1971-07-01), Hartnagel
patent: 3766372 (1973-10-01), Kataoka

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