I'm trying to choose a resistor that would be the best choice for an instrumentation amplifier gain resistor. And after doing a little bit of googling, I found that the best type of resistor (at least concerning its temperature coefficient) is of the foil type.
But the thing is, those suckers are listed at Digikey at more than $10.00 dlls a piece! They're almost twice as expensive as the amplifier chip itself!
I plan to use this circuit as a load cell amplifier.
Question, is using this type of resistor overkill? Are there any other more reasonable alternatives out there?
But the thing is, those suckers are listed at Digikey at more than $10.00 dlls a piece! They're almost twice as expensive as the amplifier chip itself!
I plan to use this circuit as a load cell amplifier.
Question, is using this type of resistor overkill? Are there any other more reasonable alternatives out there?