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OPA2316 / about bandwidth for G= + 100

Toshiyuki
Mastermind 7075 points
Other Parts Discussed in Thread: OPA2316, OPA316, OPA2320, OPA355, OPA350, OPA365, OPA2322

Hi,

I would like to use OPA2316 with G= + 100 at f=100kHz. Please let me know what bandwidth for G= + 100 is.

Best Regards,

Kato

  • 0
    TI__Guru 60590 points

    Kato,

    The effective bandwidth is a function of the Gain-Bandwidth Product, GBP, and close-loop noise gain and thus may be easily calculated using following formula: BW=GBP/Noise_Gain.  Since OPA316 GBP is 10MHz, the effective -3dB bandwidth for Gain=+100 is BW=10MHz/100=100kHz.  The bandwidth may also be simulated as shown below:

    For more detailed information, please watch the TI Precision Lab video covering the topic: 

  • 0 in reply to Marek Lis
    Mastermind 7075 points

    Hi Marek - san,

    Thank you for the reply. Would you tell me higher bandwidth devices than OPA2316 ? However, small package is high priority .

    Best Regards,

    Kato

  • 0 in reply to Toshiyuki
    TI__Guru 60590 points

    Hi Kato,

    Please consider OPA2320 and OPA2322 with GBP of 20MHz as well as OPA350, OPA355, and OPA365 with even higher bandwidth.