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US 2007/0182460 A1Published application
Dual output differential line driver using single current
AssigneeFairchild Semiconductor Corporation
InventorSteven Macaluso
Life of this patent
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Abstract
Box switches are stacked sharing a common current from power sources. The power sources may be current, voltage or a combination of such sources. In preferred embodiments, the transistor switches in the box switches may be paralleled by different polarity transistors that will act to better balance and make symmetrical the output signals. Capacitors may be used to smooth out residual noise voltage signals.
Claims11
A circuit having at least at least two differential inputs and at least two corresponding differential outputs, the circuit drawing a current from a power source, the circuit comprising:
- a first switch with a first differential input and a corresponding first differential output,
- a second switch with a second differential input and a corresponding second differential output,
- wherein the first switch and the second switch are arranged in series with respect to the power source, wherein the current from the power source runs from the first switch to a node and then to the second switch.
Dependencies are inferred from the claim text.