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V to I Circuit with no common spans

Marcos Carreras
Prodigy 20 points
Other Parts Discussed in Thread: XTR110

Hello everybody,

I need to develop a V/I circuit. I think XTR110 is the best IC for this application, but need to know your thoughts about this: The current loop, need to drive 0-25mA output @ 0-10V input... Besides, need to implement another circuit to get 0-55mA @ 0-10V inputs for driving high impedance loads. I need the higher possible accuracy since the Vin is comming from a 12 bits DAC and the circuit will be part of a I/P calibration device. Are my assumptions ok by using this IC? Any tip you deem aplicable?

Thanks to all in advance,

Regards,

Marcos

 

  • 0
    TI__Mastermind 27715 points

    Marcos,

    The XTR110 will work well for your application with non-standard spans. Simply make sure your external components meet the requirements of Equation 1 on p.6 of the data sheet, and pay close attention to the "Span Adjustment" and "Extended Span" sections.

    Best regards,

    Ian Williams
    Linear Applications Engineer
    High Performance Linear