Semiconductor device for digitizing an electric analog signal

Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock

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357 59, 340347AD, 307501, 357 23, 357 24, H03K 3353, H03K 1306, H01L 2978, H01L 2904

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active

043330223

ABSTRACT:
An analog/digital converter implemented on an MIS structure having a gate electrode in the form of a resistance layer across which the potential gradient is applied. The analog signal supplied to the gate electrode and is converted into a shift of an inversion layer below the gate electrode. The digital signal is obtained by means of determining the number of surface regions which are present below the gate electrode and which can be electrically connected to the inversion layer.

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patent: 3993991 (1976-11-01), Lorteije
Putzrath "Solid-State Analog-to-Digital Converter" RCA Technical Note No. 465 (9/61), 2 pages.

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