opa2228u or opa2228ua

[knoar]

Hi, i'm a french newcomer so, sorry for my poor American english frenchy language!
I'd like to mod my t1953 and want  to know the difference between those two op amplifers! on the data sheet i see nothing!

thanks for your answers!

 

[joaquins]

Looks like offset voltages are bit higher in ua version, still quite good, 10µV typ, 200µV max for the ua, vs 5µV typ, 75µV max. Same thing for the offset drift. Burr Brown '99 datahseet and Burr Brown by Texas Instruments '05 looks the same about this.

JS

 

[knoar]

Perfect!
thanks to you!!