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Today I was comparing OPA857 datasheet with others, and I realized that now on the site there is a new TI Designs "Reference Design for Extending OPA857 Transimpedance Bandwidth" TIDUBX71–April 2016, TIDA-00978. It is your. Interesting !! …
Mickey,
I am confused - you say input current frequency is 10 Hz to 30 kHz, but the bandwidth required is 100 MHz?
To get a theoretical understanding of how to design TIAs please refer to these 2 articles:
e2e.ti.com/.../what-you-need-to-know-about-transimpedance…
Hello Art, Test_In and Test_SD are not included in the TINA model because that particular function is for evaluation only, so we did not include the internal circuitry in the TINA model. If we had included those pins then we would also have to include…
Hello Shyam,
We have been using a real photodiode to test the performance of our amplifiers in a TIA configuration recently. We excite it with a pulsed laser diode and use an optical attenuator to control the incident power on the photodiode.
See the…