Datasheet

AD8432 Data Sheet
Rev. C | Page 8 of 32
–24
–12
–6
–18
0
12
30
24
18
6
1 10 100 1k
GAIN (dB)
FREQUENCY (MHz)
08341-011
G = 24.08dB
G = 21.58dB
G = 18.06dB
G = 12.04dB
Figure 9. Differential Gain vs. Frequency, V
OUT
= 2 V p-p, R
IN
= 50 Ω
45
46
47
48
49
51
52
53
54
50
55
0.1 1 10
FREQUENCY (MHz)
INPUT IMPEDANCE (Ω)
G = 24.08dB
G = 21.58dB
G = 18.06dB
G = 12.04dB
08341-029
Figure 10. Input Impedance R
IN
vs. Frequency, 50 Ω Active Termination
85
90
95
100
105
110
115
0.1 1 10
INPUT IMPEDANCE (Ω)
FREQUENCY (MHz)
G = 24.08dB
G = 21.58dB
G = 18.06dB
G = 12.04dB
08341-030
Figure 11. Input Impedance R
IN
vs. Frequency, 100 Ω Active Termination
0.1 1 10
FREQUENCY (MHz)
160
170
180
190
200
210
220
230
240
G = 24.08dB
G = 21.58dB
G = 18.06dB
G = 12.04dB
INPUT IMPEDANCE (Ω)
08341-031
Figure 12. Input Impedance R
IN
vs. Frequency, 200 Ω Active Termination
0.1 1 10
FREQUENCY (MHz)
0.1
1
10
INPUT IMPEDANCE (kΩ)
G = 24.08dB
G = 21.58dB
G = 18.06dB
G = 12.04dB
08341-032
Figure 13. Input Impedance R
IN
vs. Frequency, Unterminated
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0.1 1 10 100
OUTPUT IMPEDANCE (Ω)
FREQUENCY (MHz)
08341-033
Figure 14. Output Impedance vs. Frequency