• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 48 subscribers
  • Views 675 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Op AMP Suitable For POwer Input Integrator

Nikhil Bhati
Prodigy 10 points

Other Parts Discussed in Thread: OPA564, OPA569, OPA544

which opamp ic would be suitable of integrating a 50hz  input 
output current shoud have to be atleast 1amp

  • 0
    TI__Guru* 93105 points

    Hi Nikhil,

    We have several power operational amplifiers that can provide an output current of 1 Ampere, or more, and could be applied in a integrator circuit. You didn't mention the power supply voltage(s) you have available so I will list a couple of possibilities. Since this is an integrator the input bias current required by the amplifier should be kept low. A CMOS power operational would likely be best. Here are some suggestions:

    OPA564   7 - 24 V supply, output current up to 1.5 Amps

    OPA569   2.7 - 5.5 V supply, output current up to 2 Amps

    OPA544   +/-10 to +/-35 V supply, output current up to 4 Amps (JFET input)

    I tried to provide links to their data sheets, but there is something not quite right with the E2E system today and I couldn't get things to work as needed.

    An important consideration when considering a power operational amplifier is the power that will have to be dissipated by it. The data sheets provide the Safe Operating Curve (SOA) information and the package thermal characteristics. Using them you should be able to determine if a particular device can dissipate the necessary power to work safely in your application.

    Regards, Thomas

    PA - Linear Applications Engineering