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crutschow: This is basically what I want to do:
The "source" of my switch S0 is tied to ground. The "drain" voltage is 4.2V when S2 is closed, -1.8V when S1 is closed, or ~0V when S0 is closed. Current flow direction is indicated by the current source (max. 500 mA).
As gate voltages, I have...
crutschow: The gate is driven by a voltage between -1.8V and 3.3V. The signal comes from a cross-coupled level shifter I built myself.
Brad: Thanks for the link and the hint about the 4066. Unfortunately, the 4066 cannot withstand the max. 500mA current I need to sink.
Hello everybody,
I am working on an application in which I need to employ a discrete MOSFET as a switch to block voltages of both polarities. I have already learned that because of the body diode, two MOSFETs connected in an anti serial manner must be used.
Now there are two possibilities: (see...
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