• ADA4898-2: Differential voltage for the unpowered ADA4898-2

    Does the ADA4898-2 have back to back protection diodes at the input?
    I'm afraid that without these diodes we may surpass the +-1.5v differential
    mode input voltage at the absolute maximum ratings in an unpowered state.

     

    The 4898…
  • Histogram of the crossover frequency. ADA4898-2

    Dear Colleagues from Analog Devices,

     

    My current scientific interest is related to determination of crossover frequency of operational amplifiers; and especially ADA4898-2, which we often use in our University. The search in the literature revealed that…

  • About Exposed Pad of ADA4898-2

    I need some help, I used ADA4898-2 to design High-pass filter,In my own experience, I connected Exposed PAD to GND. But I checked data sheet , It said can be connected to the negative supply (−VS) or can be left floating. So, can ADA4898-2 wor…

  • ADA4898-2: Differential mode input voltage for a powered device

    Does the ADA4898-2 have back to back protection diodes at the input?
    I'm afraid that without these diodes we may surpass the +-1.5v differential
    mode input voltage at the absolute maximum ratings.

     

    The ADA4898-2 has a input stage…
  • Need help to evaluate op amp consumption on ADA4898-2

    Hello,

    I would want to know what is the method to evaluate the power consumption of preamp stage. I use a low noise amplifier (ADA4898-2 which is used +6V/-6V supply rails), and I'm not sure to understand the graph figure 4 on the datasheet : Does it…

  • RE: LTspice simulation of ADA4898

    Hello Kaos,

    I did simulate this component on LTSpice :

    Open your .CIR file with LTSPICE, then here :

    .subckt ADA4898    1    2    99    50    4

    Right click on ADA4898 and click on create symbol.

    This will create your component. You can also rename your pin (wisely…

  • ADA4898-2: Maximum voltage in an unpowered state

    This circuit is part of a magnetic field analyser. A new application requires
    us to double the sensor range.  

    The worst case scenario is that the user exposes our analyser without power to
    fields greater that its measurement range..…
  • The ada4988 model cannot run in Cadence spectre

    I use the ada4898 model to do the Cadence spectre simulation, the error message is as following:

    Error found by spectre in `ADA4898', in `ada4898', during circuit read-in.

        ERROR (SFE-395): "/home/yli/DM_template61/models/ada4898.cir" 165: The…

  • RE: AD5791 output conversion to differential

    Could you explain more about this? Why and is there any schematic on "AD5791s with 2 complementary ADA4898-1 buffers"?

  • RE: LTC6090/LTC6091 as High Voltage buffer front end for SAR ADC

    Hi Tonyraca and Harry,

    To make it easier, I've imported the ADA4898-2 pspice model into LTspice. I've also simulated your single ended to differential converter circuit section and it seems fine for the speeds you seem to be looking at (200Hz sine wave…