Current Loop Transmitter Suggestions

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pjohn

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Hi,
Can you please suggest me various current loop transmitters, please do not suggest XTR115, XTR116 or XTR117. I want to power the external circuitry via the transmitter. Any suggestions will be highly appreciated.
 

4mA - 20mA is pretty standard.

How much current do you need? What signal frequencies are you dealing with? What line voltage drop / resistance are you expecting? You need to give more details.

You can easily make a current loop transmitter from op amps, etc.
 

Don't know why you can't use the XTR series of transmitters but here's a discrete circuit design example.
 
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