MOS Switch circuit with consistent low on resistance

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons

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307579, 307584, 307585, 307297, H03K 17687, H03K 1712, H03K 1704, H03K 1730

Patent

active

045188807

ABSTRACT:
The invention provides an inverting amplifier having a CMOS inverter and a MOSFET, the latter being connected to an input-output path of the CMOS inverter to autozero the CMOS inverter to its toggle point upon being turned on. An output signal from a CMOS inverter which has a short-circuited input-output path is supplied to the back gate of the MOSFET. Even if a gate threshold voltage of the MOSFET varies, its ON resistance is kept substantially constant.

REFERENCES:
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patent: 3512012 (1970-05-01), Kosowsky et al.
patent: 3558921 (1971-01-01), Yokozawa et al.
patent: 3866064 (1975-02-01), Gregory
patent: 3913026 (1975-10-01), Koehler
patent: 4020367 (1977-04-01), Yamashiro et al.
patent: 4093874 (1978-06-01), Pollitt
patent: 4211942 (1980-07-01), Aoki et al.
patent: 4327321 (1982-04-01), Suzuki et al.
Thibodeaux, "Getting the Most Out of C-MOS Devices For Analog Switching Jobs"; Electronics; pp. 69-74; 12/25/75.
Dingwall, "Monolithic Expandable 6 Bit 20 MHz CMOS/SOS"; IEEE J. Solid-State Circuits, vol. SC-14, pp. 926-932, Dec. 1979.

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