M
Michael Noone
Guest
Hi - I'm going to be using a CUI pressure sensor
(http://www.cui.com/pdffiles/SF-X.pdf). It acts as a variable resistor. I
want to connect it to an ADC (fairly high impedance - I think about 10M).
How does one do this? My only idea was to make a sort of voltage divider -
with one pin of the pressure sensor held high, the other connected to the
ADC. Then have a resistor between the ADC and ground. I suppose I'd have to
have a large resistor in front of the ADC to raise the impedance as the
pressure sensor's resistance goes up to 100M or so. Is this the best way to
do it? How does one choose a value for the resistor going to ground?
Thanks!
-MJ Noone
(http://www.cui.com/pdffiles/SF-X.pdf). It acts as a variable resistor. I
want to connect it to an ADC (fairly high impedance - I think about 10M).
How does one do this? My only idea was to make a sort of voltage divider -
with one pin of the pressure sensor held high, the other connected to the
ADC. Then have a resistor between the ADC and ground. I suppose I'd have to
have a large resistor in front of the ADC to raise the impedance as the
pressure sensor's resistance goes up to 100M or so. Is this the best way to
do it? How does one choose a value for the resistor going to ground?
Thanks!
-MJ Noone