• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 46 subscribers
  • Views 1182 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

OPA211 Bandwidth question

Forest Song
Prodigy 10 points
Other Parts Discussed in Thread: OPA211

In datasheet description, the bandwidth of OPA211 is 80MHz (G=100), or 45MHz (G=1). Please explain why the Gain-Bandwidth Product is not a fixed data.

  • 0
    Guru 21975 points

    Hi Forest,

    You can see in figure 11 that the gain of the OPA211 does not follow a straight 20dB/decade line. The gain/phase compensation is a bit special. Thus the gain crosses 0dB at a lower frequency. When you move up to gain of 100, the GBW is higher. Is this clear?

    Regards, Bruce.