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Original question:

SN74AUC2G53: floating supplies (GND as VCC and neg1.25V as Vee) to allow switching of negative DC voltage?

SN74AUC2G53: Is there a 4 position (SP4T?) version with similar switching speed?

pinhas rosenfelder
Prodigy 30 points
Part Number: SN74AUC2G53

Tool/software:

Is there a similar part that can switch between 4 DC signals?

If not - is it practical to cascade 3 of these devices to effectively switch between 4 DC level inputs at 1ns switching times?  Or will there be timing issues and potential problems with conflicts make-before break in the middle?  or any other issue?