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OPAMP tests into a 2k7 load

These are some THD tests I performed of various OPAMPS into a 2.7k load.
Measurement parameters:
PSU: 15-0-15
Gain: 2.2
Output: 2.7V RMS
Load: 2.7k ohms
Click on the image for a larger version.
NOTE: "ML" = measurement limit for my setup.


OPAMPTHDNotes
AD712JN0.00041%
AD746JN0.00022%
AD827JN0.00036%
LM4562NA0.00016%ML
LT13580.00042%
NE5532N0.00020% Make forgotten!
NJM2043DD0.00016% ML
NJM2068DD0.00020%
NJM2114D0.00026%
NJM4558D0.00059%
NJM4565DD0.00025%
NJM4580DD0.00017%
OPA2111KP0.00222%Note bad harmonics
OPA2134PA0.00085%
OPA2604AU0.00017%
NE5532N0.00024%
NE55320.00016%ML
NE55320.00020%Signetics
TL072CP0.00152%

Click the images for a larger view

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