I'm relatively new to electronics, and I'm trying to make a thermometer using a LM335 temperature sensor. By reading the datasheet I thought it was simple, connect up 5V to a resister, then to the V+, connect up V- to GND, and I should get somewhere just below 3V when reading the V+ pin.
However, when I do this, I'm actually getting 4.08. I've tried two different sensors, so I'm reasonably sure that it's not just a DOA.
Any ideas about what I could be doing wrong? What I can do to try to work it out?
Answer
Are you sure you have it connected properly? If you are getting 4.83V at V+ and 4.88V at your supply it sounds like you have an open circuit.
Check the pinout against the datasheet. On page two they are showing the bottom views of the package.
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