/etc... Amplifiers & Other Linear

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XTR115
Related Posts

  • Forum Post: How to convert linear resistance to 4-20mA using XTR115 ?

    John Es
    I'd like to hear from anybody familiar with XTR115 or XTR116 on their recommendations how to convert 0-1000 Ohm linear resistance to 4-20mA... Any circuit ideas or schematic examples other than going full bridge front end? John
    on Sep 17, 2010

  • Forum Post: Re: 4-20mA variable output

    Ian Williams
    Hello Alan, Thank you for your question, and welcome to the TI E2E forums! The simplest way to achieve 4-20mA out with a resistance pot at the input would be by using the XTR115 or XTR116, since both parts have an internal voltage reference that could be used with the appropriate resistors to easily...
    on Jan 17, 2011

  • Forum Post: Re: XTR115 with External Regulator

    Bruce Trump
    Leonard, Yes, the circuit you describe will operate properly. If you return all the current drawn from the V+ terminal to the Iret pin, it will be accurately included in the output current of the transmitter. This must include the ground current of the 7V regulator and its load current. The total...
    on Feb 1, 2011

  • Forum Post: Re: Assistance seeked for Loop powered 4 20 mA circuit

    Bruce Trump
    Aditya, It does not appear that your circuit has any means by which the quiescent currents of the op amps and regulator are sensed and accounted for in the output. I suggest that you look at the data sheet for the XTR115. In this device, all current used by the circuitry is forced to flow through...
    on Jan 21, 2012

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