Other Parts Discussed in Thread: OPA552, OPA445
Hello,
I'm Malela . I use the OPA552 for a amplification board . i got 2 stages: a follower voltage and a non inverter amplifier(gain1.5).
I got a problem on the output of the follower stage: there a oscillations on the output signal when the input signal is a square signal or sinus signal. If i change the opa552 to use an opa445, i have no oscillations, but the output signal on the output follower voltage is attenuated. I would like to know to cut these oscillations if could use a low pass filter( RC). I would like to know too why withe the OPA445 ,the output signal is attenuated because i would like use it to a attenaution board in follower voltage stage and a amplifier stage (* 1/6)
Thank you for your reading
Malela , a student from France