> What is the difference between the LM75CIM5 and LM75CIM3 and will the > LM75CIM3 work for the sensor??? I think the difference is in the voltage, one is 5v and the other is 3. To use the 3v version, you would need to run the TI outputs through a few resistors to reduce the voltage, and 3v must be enough to pull the TI inputs high. -Ed www.geocities.com/siliconvalley/bay/2267