Hello,
I have a need to connect either a bridge sensor (mV-Out) or a voltage out sensor ( 0.5 to 4.5 V ) to a 4-20 transmitter and have the ability to adjust the offset and span for custom sensor range use. Both sensors operate from 5V. Obviously, one sensor will have a common mode voltage and the other is only single-ended. Both of these sensors are already thermally compensated. I'm wondering which XTR would be best knowing of the offset and span needs. Offset adjust could be quite large ( 50-75% of full scale ). I see the XTR108 offers a lot of features that look appropriate; however, there is likely some over-kill. Based on this limited information, are there any suggestions on whether I should use an XTR like the XTR101 or similar and then add opamp circuits separately for offsets and scaling or just go with a more complex XTR.