I'm having problem in biasing the LM35 temperature IC. The multimeter reads 0.6v for a bias of 5v & output is also erroneous.Is there any proper biasing circuit for the IC or a direct supply of 5v will work???

 

Judging from your schematic, I'd say just give the LM35 five volts and let it output what it wants to output.

 

I don't see a schematic, however the LM35 requires no special "biasing." It operates on 4-30 volts, and its output is independent of the input voltage within that range. The output is a linear function of the temperature sensed by the LM35.

 

I don't see a schematic either. I was trying to get perzade to post one.

 

A picture might be even better. Like anything with 3 pins, it's easy to get them out of order. Been there, done it. Amazingly, the LM35 can survive a mistake at 5V, but not more. I suggest double checking the pinout. Also, the output really should be shown a small load, and a meter may not be enough.

 

Its simple apply regulated +5 volt dc to pin 1 and connect pin 3 to GND and read the voltage between pin 2 and GND.

If you don't get a proper out put then most probably the IC is damaged,for proper pin out check the datasheet.

Good Luck

 

The multimeter reads 0.6v

Remember the output scale factor for LM35 is about 20mV/C i.e.. 20 milli volt per degree centigrade (Celsius).So if the temperature is 30 degree centigrade then the output will be 30 * 20 = 600mV i.e.. 0.6V as your meter is showing.

Good Luck

 

Ummm.... Pretty sure it's 10mV per °C, not 20

 

Sorry ,yes its 10mV,I was thinking about LM37 which I work with most...