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I found this LM35 interface circuit in erics blog.
My question is why eric uses a opamp circuit, why not directly connecting LM35 to PIC.
If I use this circuit what gain do I need to adjust?
I found this LM35 interface circuit in erics blog.
My question is why eric uses a opamp circuit, why not directly connecting LM35 to PIC.
If I use this circuit what gain do I need to adjust?
Suraj,
Is the PIC's adc set to 8bit or 10bit.??
Hi ericgibbs I use 10bit right justify.
The maximum LM35 goes to 1V.That means maximum AD steps that can go 204.6.So I use only ADRESL all the time in 10bit result