Loop Powered transmitter

rnd 5

Prodigy 160 points

Other Parts Discussed in Thread: XTR117

Hello team,

This is sagar, I have to design Loop Powered Transmitter with TWO 4-20mA output current,

1st 4-20mA is used to measure Analog signal 1

2nd 4-20mA is used to measure Analog signal 2

Please help me in design circuit or give me block diagram.

Thank you in advance...!!!

over 6 years ago

0 Tamara M Alani over 6 years ago

TI__Genius 10850 points

Hi Sagar,

Thank you for your post, I'm happy to help. A 2-wire transmitter is referred to as being loop powered. Take a look at our XTR117, its input current controls the output current. Page 5 of the datasheet describes the connections and shows a sample circuit for you to follow:

-Tamara Alani

0 rnd 5 over 6 years ago in reply to Tamara M Alani

Prodigy 160 points

Hello Tamara Alani,

Thank you for your quick replay, but I have to design circuit like: I wants Two 4-20mA outouts in a single loop powered , So that I can measure Two Variables by mean of TWO 4-20mA's .

0 Tamara M Alani over 6 years ago in reply to rnd 5

TI__Genius 10850 points

Hi Sagar,

In order to get 2 current loop outputs from 2 different inputs, you can use 2 XTR117 devices (one for each input/output). You can't achieve two current loop outputs on a single loop power.

-Tamara Alani

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Loop Powered transmitter