AD8122 Ver la hoja de datos (PDF) - Analog Devices
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AD8122 Datasheet PDF : 20 Pages
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AD8122
Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, VS = ±5 V, Category 5e UTP cable, input VCM = 0 V, VOFFSET = 0 V, VPEAK, VGAIN, and VFILTER are set to the recommended settings
shown in Figure 24, unless otherwise noted. For G = 2, RL = 150 Ω and VOUT = 2 V p-p; for G = 1, RL = 1 kΩ and VOUT = 1 V p-p.
6
12
3
9
0
6
–3
–6
100m
150m
–9
200m
250m
300m
–12
3
100m
150m
0
200m
250m
300m
–3
–6
–15
–9
–18
0.1
1
10
100
FREQUENCY (MHz)
Figure 4. Equalized Frequency Response for Various UTP Cable Lengths, G = 1
–12
0.1
1
10
100
FREQUENCY (MHz)
Figure 7. Equalized Frequency Response for Various UTP Cable Lengths, G = 2
6
3
0
–3
100m
–6
150m
200m
–9
–12
–15
–18
0.1
1
10
100
FREQUENCY (MHz)
Figure 5. Equalized Frequency Response for Various Coaxial Cable Lengths,
G=1
12
9
6
3
100m
0
150m
200m
–3
–6
–9
–12
0.1
1
10
100
FREQUENCY (MHz)
Figure 8. Equalized Frequency Response for Various Coaxial Cable Lengths,
G=2
3
VGAIN = 1.37V
VPEAK = 1.86V
0
–3
–6
–9
VFILTER = 2V
VFILTER = 1.7V
VFILTER = 0V
12
VGAIN = 1.37V
VPEAK = 1.86V
9
6
3
VFILTER = 2V
0
VFILTER = 1.7V
VFILTER = 0V
–3
–12
0.1
1
10
100
FREQUENCY (MHz)
Figure 6. Equalized Frequency Response for Various VFILTER Levels,
300 m Cable Length, G = 1
–6
0.1
1
10
100
FREQUENCY (MHz)
Figure 9. Equalized Frequency Response for Various VFILTER Levels,
300 m Cable Length, G = 2
Rev. 0 | Page 8 of 20
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