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OPA2333-HT: Paralleling for a higher output current

Prodigy 140 points

Replies: 4

Views: 68

Part Number: OPA2333-HT

1. Can these dual Op-Amps be connected in parallel to provide a higher current output?

I've read this other e2e discussion on the risks of paralleling op-amps, however, it doesn't state it is impossible. 

2. If it can be done, what are some considerations? The article mentions high speeds and slew rate--are there other things to keep in mind with device?

Thank you,

Jennifer

  • Hi Jennifer,

    Which circuit are you referring to? How much current do you want to source? 

    Figure 22 is a V-to-I converter, which is a current mirror circuit. In order to achieve higher current, you only need to lower Rs1 resistor, and the current will be mirrored to Rload, since the op amp is controlling the feedback of load voltage, mosfet is controlling the source of current. Please let us know. 

    Best,

    Raymond

  • Hi Jennifer,

    can you give some more details on your application?

    Kai

  • Hi Raymond, Kai


    The main question was whether it was possible and what the drawbacks would be. I do not have a circuit at the moment. I'm currently waiting on further details and will reply with a follow up as needed. I appreciate the feedback, Raymond.

    Thank you,

    Jennifer

  • In reply to Jennifer Bernal:

    Hi Jennifer,

    well, this paralleling can be done, of course, and it would even work, but I would not recommend it, because often there are better ways to increase the driveability of a circuit. It very much depends on the actual application.

    Kai

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