If you search Mouser/Digikey for shunt zener voltage reference you mainly get devices for positive voltages.
This may seem like a really dumb question but is there any reason why I should not use any of those positive voltage refs to generate a negative voltag ref? (e.g. I connect them via a current limiting resistor to the negative rail instead of the positive. Anode to -12V, cathode (via resistor) to gnd)
This may seem like a really dumb question but is there any reason why I should not use any of those positive voltage refs to generate a negative voltag ref? (e.g. I connect them via a current limiting resistor to the negative rail instead of the positive. Anode to -12V, cathode (via resistor) to gnd)