Yes clear explanation!
Moreover i got the following reply from one of my colleague that "most of the TTL circuits operate on voltage 5V or lesser than this , beyond which they need to handled with power transistor which is not economic as well handling heat dissipation
What value add...
Ya i got it but i want to know what are the advantages of 4-20mA analog current loop over 0-20mA analog current loop? Reason behind 4-20mA for industrial analog communication!:confused: