Good afternoon~ thank you for reading my topic.
Recently I bought a LM393AD. This is the LM393\\\\u2019s datasheet. The following picture is about the circuit made by myself.In my circuit,there are just two resistances.One sends while one receive. My question:
When it sent a resistance with 100R and received one with 22K. The power is 5V,why the voltage of receiving tube always is 4.9V?
Does anyone know the reasons? Can you tell me ?
Thanks in advance!
Spoken-Tutorial-Technology General None min None sec