I bought three "LM35DZ" temperature sensors, all of them are from National Semiconductor.
When I connect +5 V (4.90 V actually) to the Vcc pin, and its GND pin to 0 V, I get 0 V of output voltage with reference to ground, but when I measure Vcc with Vout pin as reference I get 4.36 V of voltage drop. There is no current flowing through the sensor as I checked with the multimeter (one lead to the GND pin of the LM35 and the other to 0 V of the voltage source.)
I have the same problem with all of them, what am I doing wrong? Did I burn them?
The TO-92 casing also says "52AB" (52AB LM35 DZ.) I couldn't find any info about the 52AB part.
Here is an image showing how I am doing the connections: