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LMP7704-SP: Space-Grade, 100-krad, 125-kHz Photodiode Transimpedance Amplifier (TIA) Circuit " SNOAA75 - JUNE 2021

AMIGUES XAVIER
Prodigy 10 points
Part Number: LMP7704-SP

hi TI Team,

in  the Application Breif  : " Space-Grade, 100-krad, 125-kHz Photodiode Transimpedance Amplifier (TIA) Circuit "  SNOAA75 - JUNE 2021

https://www.ti.com/lit/an/snoaa75/snoaa75.pdf?ts=1642090903666&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FLMP7704-SP%253FkeyMatch%253DLMP7704-SP

on Page  3/9 , Equation Vbias =( VCC+RB2) / (RB1+RB2)

should be corrected with  Vbias = VCC* RB2 / ( RB1 +RB2)

or exchange + with * between VCC and RB2,

thank you,

xavier ;-)


  • 0
    TI__Guru* 93105 points

    Hello Xavier,

    Yes, you are indeed correct regarding the voltage divider equation error in the LMP7704-SP Applications Brief. Very likely that was a typo that missed the eyes of the final draft review.

    I'll let our Precision Amplifiers Systems Engineer know about your finding and the brief will have to be corrected. Please note that such changes are handled in a queue system so it may be a while before a corrected version becomes available.

    Thank you for catching the problem for us!

    Regards, Thomas

    Precision Amplifiers Applications Engineering