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LMV772: There are some error on datasheet(Rev.F) of lmv772

John Henry
Prodigy 210 points
Part Number: LMV772

Hi, 

 I think there are some error on the datasheet lmv772. I download datasheet of lmv772 with a version  "SNOSA04F –MAY 2004–REVISED SEPTEMBER 2010 "

And I find maybe there are some errors:

Page 16:

Page 19:

  • 0
    TI__Guru 62081 points

    Hi  John,

    Question 1 on p.16. 

    You are correct. It should be R2 in fo = 1/(12*pi*R2C). Reasons are:

    At DC and low frequency, Vout/Vin = -R2/R1. 

    When R2 and Xc's impedance are equal, the gain is starting to decrease at -3dB point, which it generates the pole. R2 = 1/sC or fp = 1/(2*pi*R2*C).

    Question 2 on p.19. 

    You are also correct. R1 and R4 should have been switched, see the image below. You can solve the bottom circuit by applying superposition method. 

    Thanks for pointing out the mistakes. I will make a note of it. 

    Best,

    Raymond