Datasheet

9
REV. A
AD8079
–5–
CROSSTALK – dB
FREQUENCY – Hz
100k 200M0.1M 1M 10M 100M
–10
–20
–110
–30
–40
–50
–60
–70
–80
–90
–100
V
IN
= 2V p-p
R
L
= 100Ω
V
S
= ±5V
Figure 9. Crosstalk (Output-to-Output) vs. Frequency
IRE
0.02
0.06
0.00
12
DIFF PHASE – Degrees
34567891011
0.01
0.08
0.04
0.02
0.00
–0.02
–0.01
DIFF GAIN – %
2 BACK TERMINATED
LOADS (75Ω)
1 BACK TERMINATED
LOAD (150Ω)
2 BACK TERMINATED
LOADS (75Ω)
1 BACK TERMINATED
LOAD (150Ω)
NTSC
NTSC
IRE
123 45678 91011
Figure 10. Differential Gain and Differential Phase
(per Amplifier)
NOTES: SIDE 1: V
IN
= 0V; 8mV/div RTO
SIDE 2: 1V STEP RTO; 400mV/div
5ns
SIDE 2
SIDE 1
R
L
= 100Ω
Figure 11. Pulse Crosstalk, Worst Case, 1 V Step
FREQUENCY – Hz
1M 500M10M 100M
3
0
–27
–3
–6
–9
–12
–15
–18
–21
–24
3
0
–27
–3
–6
–9
–12
–15
–18
–21
–24
NORMALIZED OUTPUT LEVEL – dBV
INPUT LEVEL – dBV
V
IN
= 1.0V rms
V
IN
= 0.5V rms
V
IN
= 0.25V rms
V
IN
= 125mV rms
V
IN
= 62.5mV rms
V
S
= ±5V
R
L
= 100Ω
Figure 12. Large Signal Frequency Response
TIME – ns
0.1%/DIV
5
–5
0 12020 40 60 80 100
4
1
–2
–3
–4
3
2
0
–1
2V STEP
R
C
= 100Ω
R
L
= 150Ω
Figure 13. Short-Term Settling Time
400mV
2µs
INPUT
OUTPUT
ERROR,
(0.05%/DIV)
2V STEP
R
L
= 100Ω
Figure 14. Long-Term Settling Time