Solution for 4-20mA/0-20mA loops

[tjalps]

0-20ma loop

Hello!

Does anyone now for best solution about receiver and transciver for upper mentioned loops. To convert current signal into voltage and reverse.

Best regards!

 

[Cluricaun]

xtr105 0-20ma

Hi tjalps

I do not know if this helps you but you can check
AD421 from analog and

1234://focus.ti.com/docs/browse/productnavigation.jhtml?familyId=508&tfsection=products&templateId=3

 

[tjalps]

xtr 0-20ma

Hello!


Thanks for your reply, but I now this IC's. Are there any cheaper aplication?

Regards!

 

[wisely77]

you may try xtr1xx (xtr101, xtr103, xtr104, xtr105,...) from burr-brown to convert voltage to current and using rcv420 also from burr-brown to convert current to voltage.

just becareful that some of the xtr model had obsolated, please go to their site and find it out. good luck.

wisely77

 

[KamW]

check MAXIM design guide **broken link removed** there is very interesting idea for 4-20, or 0-20mA source, different from AD421 and XTRs. I think it could help you. there are a lot of solutions with this ideas, I use MAX535 and it is much chaper!!!

regards
KamW