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AD8597 OpAmp
•Cross-Talk 33R load:-84dB(1Khz)
•Cross-Talk 250R load:-95dB(1Khz)
•THD+N
no-load: 0.001%(1Khz, 1v RMS input, unity-gain)
•THD+N
33R-load: 0.0025%(1Khz, 1v RMS input, 70% output)
•Noise Level
33R-load: -110dB
•Noise Level 250R-load: -115dB
•Max Voltage Output:4v
p-p(33R load), 16vp-p(330R load)
•Peak Power Output:120mW(33R load), 200mW(330R load)
•Frequency Response:+0.06
dB, -0.0dB(20Hz-15Khz)
•Input Impedance: 10
Kohms
•Ouput Impedance: Less than 0.5
ohms

 

OPA627 OpAmp
•Cross-Talk 33R load:-80dB(1Khz)
•Cross-Talk 250R load:-95dB(1Khz)
•THD+N
no-load: 0.001%(1Khz, 1v RMS input, unity-gain)
•THD+N
33R-load: 0.001%(1Khz, 1v RMS input, 70% output)
•Noise Level
33R-load: -112dB
•Noise Level 250R-load: -115dB
•Max Voltage Output:4v
p-p(33R load), 16vp-p(330R load)
•Peak Power Output:120mW(33R load), 200mW(330R load)
•Frequency Response:+0.06
dB, -0.0dB(20Hz-15Khz)
•Input Impedance: 10
Kohms
•Ouput Impedance: Less than 0.5
ohms

TESTING
Below are testing results of mini HeadAmp with different OpAmps: