• AD8420 port surge protection

    Dear team.
    For AD8420 port surge protection, what is the appropriate protection voltage for TVS?

  • AD8420 and LTSpice simulation

    Dear team,
    I used LTSpice to simulate the 4-20mA receiver of CN-0314, and the simulation results were wrong. Don't know the reason.
    Please point out the error, thank you.

    sim_LTSPICE.rar

  • Problem with the ad8420 configured as a transmitter to get 4-20mA at its output

    Hi. I have a problem with a design that I made with the AD8420. I proceed to place the schematic diagram to explain more clearly my problem.

    Design a transmitter that receives a voltage of 0 to 10V at its input. The output must obtain a current in the…

  • AD8420在使用3.3V单电源供电时，放大倍数不对！而使用5V单电源供电时正常。

    如题：AD8420在使用3.3V单电源供电时，放大倍数不对！而使用5V单电源供电时正常。

    我是按照PDF手册推荐电路做板测试的

    使用3.3V单电源工作，放大倍数是201倍时（1K和200K组合），

    输入3.3mV，输出电压只有0.460V，和0.663V相差太远了

    我把后续电路割断了，也是这样

    而把单电源换成5V，放大倍数正常

    请问这种情况正常吗？

  • 4-20mA receiver using AD8420 - gain equation

    Hi guys, 

    I am using AD8420 in 4-20mA current loop receiver configuration. Referring document is https://www.analog.com/media/en/reference-design-documentation/reference-designs/CN0314.pdf

    I am using 3.3V external reference instead of ADR02 for voltage…

  • AD8420 4-20mA Receiver grounding

    I have a simple AD8420 configured as a 4-20mA receiver powered by +12v/GND .  The issue I have is that the output is only valid if I tie the return of the 4-20mA source (AI420_4_N) to the same ground as my board (DGND).  

    I'm within the common mode requirements…

  • RE: High Voltage DC PWM Motor Voltage Measurement using AD8420

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    …

  • AD8420在采用电流反馈时。放大倍数会随着输入信号的变化而变化

    如下图所示，当输入信号变化（10-20mV）时，放大倍数会从100大概变到106，该如何解决？@

  • AD8420: When there going to be LT Spice model?, I need it for CMR assessment.

    It has AD8420.cir but not sure how to install this into LTSpice.

    When you going to release LTSpice version of AD8420.

    Thanks.

  • Help needed with AD8420 design

    Hello everyone, I have a problem with the AD8420 in-amp in a new electromagnetic flow meter design. Please refer to the attached image of a section of the circuit diagram.

    The AD8420 is powered from a 3 V supply with the REF pin connected to mid-rail…