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OP07 vs. TLE2021A or OPA277 for EMI

Aaron Spaete
Expert 4310 points
Other Parts Discussed in Thread: OPA188, OP07, LMP2021, TLE2021A, OPA277

Team,

My customer has used the OP07 and LT1097 in an application.  He is worried about EMI around the 1-2GHz region.   He would like to compare from a reference point he knows.   We have recommended OPA188 and LMP2021 as other candidates to look at. 

"I found the OP07 was once used in this design before the LT1097.  Going back through the TI website, it looked like the OPA277 and TLE2021A are two matches that I think would both function in my application.  

I reviewed the EMI datasheet and it showed about 19db EMIRR for the TLE2021A and 90DB+ for the OP277 at 1.8GHz, so I ordered some OP277's to try.  It would be fascinating to know how the OP07 and LT1097 rate on that scale."  
 
There doesn't look to be much info in the OP07 datasheet so I was hopeful one of the old timers on the forum may know.  

Thanks,

Aaron

  • 0
    TI__Guru* 93105 points

    Hi Aaron,

    We have done some limited EMIRR testing on non-TI operational amplifiers, but that was for our internal use only. The OP-07 and LT1097 were not included in those tests. Although we have the capability to make the EMIRR measurements on most competitor's operational amplifiers any information gained would not be openly disclosed on the TI E2E forum.

    Please contact me directly if you would like to discuss this further.

    Regards, Thomas

    PA - Linear Applications Engineering