Can the outputs of a semiconductor SPDT-switch be used as inputs if I reverse the switch? I can't see why it shouldn't work, but I though I'd ask anyway.
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3\$\begingroup\$ An electromechanical switch don't have outputs and inputs - they have connections. \$\endgroup\$– Andy akaCommented Apr 15, 2015 at 11:49
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\$\begingroup\$ I'm sorry, I forgot to mention that it's a semiconductor device. I'll edit the post. \$\endgroup\$– pawCommented Apr 15, 2015 at 12:09
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2\$\begingroup\$ The datasheet will tell you. \$\endgroup\$– pjc50Commented Apr 15, 2015 at 12:19
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You don't mention which chip you are referring to, but in general a CMOS switch (CD4066 etc.) is bi-directional. The only requirement is that both voltages (input and output) are within the allowed range (in general 'within the power supply range', where the power pins can be separate from the ground and logic power.)
answered Apr 15, 2015 at 13:21
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\$\begingroup\$ The switch is Mini-Circuits SWMA-2-50DR+. Can't see any information on this subject in the datasheet, but maybe I just don't know where to look. \$\endgroup\$– pawCommented Apr 15, 2015 at 14:45
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\$\begingroup\$ That is not a general-purpose CMOS switch but a HF switch. I have no experience with such a switch, and I would not assume it to be totally bi-directional without further investigation. I would probably just use it as directed by the datasheet. \$\endgroup\$ Commented Apr 15, 2015 at 16:41