Vizier87 Active Member Aug 20, 2009 #1 Hi guys, Do I need to introduce a filter before amplifying an output from an LM35 thermometer? It seems that the amplification didn't work well. I use an LM358 for the purpose. If I need it, then what is the suggested low-pass frequency?
Hi guys, Do I need to introduce a filter before amplifying an output from an LM35 thermometer? It seems that the amplification didn't work well. I use an LM358 for the purpose. If I need it, then what is the suggested low-pass frequency?
Nigel Goodwin Super Moderator Most Helpful Member Aug 20, 2009 #2 I suggest you post the circuit, and explain what "didn't work well" means.