• AD8538: FAQ

    FAQ

  • AD8538 in a thermopile circuit

    Q 

    I want to use the AD8538 in a thermopile circuit.
    Can I have the values of the circuit (follow the link or see attachment)?

    http://www.analog.com/en/all-operational-amplifiers-op-amps/
    operational-amplifiers-op-amps/products/technical…

  • AD8538 as auto-zero buffer?

    I've done a bit of reading on the operating principle behind the auto-zero amplifier, but have some questions for our particular needs.

    Is it appropriate to assume that in a "quiescent" state, where the amplifier non-inverting input is at ground (V…

  • AD8538 in high-side current measurement and temperature simulation in LTSpice

    Hi!

    I try to simulate a high-side current measurement circuit. But when i simulate with different temperatures the current output curve moves (due to offset) much more than I expect.

    For the AD8538 the offset voltage drift is about 0.03uV/C. So when…

  • RE: AD8538 - thermopile amplifier circuit

    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,
    …

  • RE: Dropout voltage of AD8538 versus load current?

    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,
    …

  • How to use AD8538 in a thermopile circuit

    My research has pointed me to a link

    http://www.analog.com/en/content/using_thermopile_sensor_in_ir_digital_thermometers/fca.html

    Unfortuantly that link is now dead but I have found the webarchive version: Using a Thermopile Sensor in IR Digital Thermometers…

  • SPICE Model for a Platinum RTD Sensor

    PDF This KWIK (Know-how With Integrated Knowledge) Circuit FAQ offers a step by step guide on how to model a Resistance Temperature Detector (RTD)  This sensor model enables SPICE simulation of the electrical and physical properties of an RTD.  The SPICE…

  • RE: How to reduce effect of temperature to relaxation oscillator (using AD8542)?

    Hi Harry,

    I've tried with AD8535 and AD8552 but the problem is not fixed.

    The output is still effected by temperature. And I found new problem.

    With the same circuit (just change opamp), there are the different frequency output

    - With AD8542:…

  • RE: AD8231 op-amp bandwidth and part number

    FormerMember
    FormerMember

    Bruce,

    You didn't say what the corner is, etc.  Did you use the Filter Wizard to design the HPF?

    What do you mean by LP resonse?

    Can you attach schematic and also freq response plot?

    The op amp in the AD8231 doesn't have a part number;  it…