Reference voltage generator

Details Reference voltage generator Reference voltage generator

1980-01-11

1981-12-08

Munson, Gene M.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307297, 357 41, H03K 3353, H03K 301, H01L 2702

Patent

active

043050115

ABSTRACT:
A reference voltage generator comprising two MOS-type transistors T.sub.1 ' and T.sub.2 ' produced on the same substrate, the channels of these transistors having the respective lengths L.sub.1 and L.sub.2 and the respective widths Z.sub.1 and Z.sub.2, one of the transistors T.sub.2 ' having a channel, only one dimension of which is of the same order of magnitude as the corresponding dimension of the extension, relative to the source and drain of this transistor, of the space charge zone appearing round this source and this drain when the transistor is operating, the other dimension being large in relation to the corresponding dimension of said extension of the space charge zone, the other transistor T.sub.1 ' having a channel the two dimensions of which are large in relation to the corresponding dimensions of the extension, relative to the source and drain of this transistor, of the space charge zone appearing round this source and drain when the transistor is operating, and further comprising means for providing the difference in the threshold voltages of the transistors T.sub.1 ' and T.sub.2 ', this difference in threshold voltages representing the reference voltage.

REFERENCES:
patent: 3806742 (1974-04-01), Powell
patent: 3975648 (1976-08-01), Tobey et al.
patent: 4096430 (1978-06-01), Waldron
patent: 4100437 (1978-07-01), Hoff

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