Measurement Computing IOtech 640 Series - Manual (Page 84)

Specifications are subject to change without notice.
11.b-10 Specifications, Plotted Data 967692 IOtech 640 and 650 Series
Figure XVII. 640 CMRR
640 CMRR
Common Mode Voltage = 6V RMS
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
1 10 100 1,000 10,000 100,000
Frequency
CMR
R (dB)
Ch 2 AC
coupled
Ch 1 DC
coupled
Ch 2 DC coupled
Ch 1 AC
l d
Figure XVIII. 650 CMRR
650 Typical CMRR
Common Mode Voltage = 6V RMS
-120
-100
-80
-60
-40
-20
0
1 10 100 1,000 10,000 100,000
Frequency
CMR
R
(dB)
thin line & hollow symbol is DC coupled
thick line solid symbol is AC coupled