Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Reexamination Certificate
2006-10-27
2009-08-04
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
C327S382000, C327S534000
Reexamination Certificate
active
07570089
ABSTRACT:
An output stage interface circuit for interfacing with a data bus, comprising first and second rails for receiving respectively a high voltage and a low voltage from a power supply; a data output terminal; a first main switch element coupled between said terminal and the first rail and comprising a first main MOS device having a gate and an independently configurable back gate, and responsive to a first data control signal applied to the gate pulling the voltage on the data output terminal toward the first rail voltage; and a first control circuit responsive to the voltage on said terminal being pulled from a first state across a first voltage reference to a second state for coupling said back gate to said terminal and permitting coupling of the gate of said MOS device to said terminal, the first main MOS device presenting a high impedance on the terminal when its voltage is pulled to the second state.
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Moane Brian Anthony
Ronan Colm Patrick
Twomey John
White Liam Joseph
Analog Devices Inc.
Donovan Lincoln
Jager Ryan C
Wolf Greenfield & Sacks P.C.
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