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Texas Instruments (TI) Amplifiers support forum is an extensive online knowledge base where millions of technical questions and solutions are available 24/7. You can search amplifier IC content or ask technical support questions on everything from precision and general purpose operational amplifiers (op amps) to instrumentation and differential amplifiers. Find the right solution for your circuit design challenges by using our TI E2E™ support forums that are supported by thousands of contributing TI experts.
Frequent questions
  • [FAQ] What is a 2-wire 4-20mA current transmitter?

    Katlynne Jones
    Katlynne Jones
    Other Parts Discussed in Thread: XTR117 , XTR106 , XTR101 , XTR112 , XTR108 , XTR116 , XTR115 , XTR105 , DAC161P997 , DAC161S997 What is a 2-wire 4-20mA current transmitter? How do I use one?
    • Answered
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
  • [FAQ] What is a 4-20mA current transmitter?

    Katlynne Jones
    Katlynne Jones
    What is a 4-20mA current transmitter?
    • Answered
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
  • [FAQ] Does TI have integrated 4-20mA transmitters for inputs from RTDs?

    Katlynne Jones
    Katlynne Jones
    Other Parts Discussed in Thread: XTR105 , XTR112 , XTR108 Does TI have integrated 4-20mA transmitters for inputs from RTDs (resistive temperature detectors)?
    • Answered
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
  • [FAQ] Does TI have integrated 4-20mA transmitters for inputs from bridge sensors?

    Katlynne Jones
    Katlynne Jones
    Other Parts Discussed in Thread: XTR106 , PGA309 , XTR117 Does TI have integrated 4-20mA transmitters for inputs from bridge sensors?
    • Answered
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
  • [FAQ] Can I use multiple XTR devices if I have multiple DAC outputs or multiple sensors that share a supply and ground?

    Katlynne Jones
    Katlynne Jones
    Other Parts Discussed in Thread: ISO7340C , ISO7310C I have multiple sensors going into a DAC with multiple output channels. Can I use multiple XTR devices to transmit the 4-20mA current signals for each sensor?
    • Answered
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
  • [FAQ] Are there reference designs that can help me build a 4-20mA transmitter?

    Katlynne Jones
    Katlynne Jones
    Other Parts Discussed in Thread: XTR105 , XTR112 , XTR116 , XTR117 , XTR111 , XTR300 , XTR305 , DAC8771 , DAC8775 , DAC8760 Are there reference designs that can help me build a 4-20mA transmitter? Where can I find them? How do I incorporate IEC protection…
    • Answered
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
  • [FAQ] The minimum output current of my 2-wire 4-20mA transmitter is greater than 4mA.

    Katlynne Jones
    Katlynne Jones
    Other Parts Discussed in Thread: XTR116 The minimum output current of my 2-wire 4-20mA transmitter is greater than 4mA. Why is that? How can I lower it?
    • Answered
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
  • [FAQ] Can I use a 2-wire 4-20mA transmitter with a sensor or microcontroller that uses its own supply?

    Katlynne Jones
    Katlynne Jones
    Other Parts Discussed in Thread: ISO7340C , ISO7310C 2-wire 4-20mA transmitters are loop powered, and the sensor and its associated circuitry are supplied by the transmitter. Is it possible to use a sensor or microcontroller that uses a separate supply…
    • Answered
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
  • [FAQ] Why does my 2-wire 4-20mA transmitter output not reach the full 20mA?

    Katlynne Jones
    Katlynne Jones
    Why does my 2-wire 4-20mA transmitter output not reach the full 20mA? When I change the load resistance or decrease the supply, the output changes. What can I do to fix this?
    • Answered
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
  • [FAQ] Voltage scaling for almost any application (single ended)

    Ron Michallick
    Ron Michallick
    The technical article “ Three ways to scale an analog input ” only covered options for non-inverting and attenuating voltage scaling. Is there a voltage scaling solution for any single ended input range to a desired output range?
    • Answered
    • over 5 years ago
    • Amplifiers
    • Amplifiers forum
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