Noise Calculation

jian wang87

Hi Michael

Got it, i start a new thread. you can send me by email if convenient..

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I did the calculation using the model in LTC app note. please help to review the steps. thanks again!

Noise Calculation.docx

over 4 years ago

0 Michael Steffes over 4 years ago

Guru 48395 points

let's see if it will let me insert the files I did now,looks like it is working again -

Some work on the LT1037 as an illustration vehicle for total output RMS noise including 1.docx

And the TINA V9 file with external noise macro's to fix the model,

LT1037 model with correct noise.TSC

0 jian wang87 over 4 years ago in reply to Michael Steffes

Intellectual 370 points

Hi Michael

now u have built the model of LT1037, so from your point, what's the right noise hand calculation for below circuit. Suppose there is no RC filter. thanks!

0 Ron Michallick over 4 years ago in reply to jian wang87

TI__Guru**** 159286 points

Hello Jian,

The output noise is 101 times the op amp input voltage noise. Upto to the bandwidth of the op amp divided by 101, then the noise gain is reduced as the op amp gain drops.

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Noise Calculation