AD8079
+5V
10µF
0.1µF
VIN
PULSE
GENERATOR
2
7
AD8079 8
1
50Ω
0.1µF
6
10µF
TR/TF = 250ps
–5V
RL = 100Ω
Figure 3. Test Circuit
SIDE 1
100mV STEP
SIDE 2
20mV
5ns
Figure 4. 100 mV Step Response
SIDE 1
1V STEP
SIDE 2
200mV
5ns
Figure 5. 1 V Step Response
RL = 100Ω
VIN = 50mV rms
SIDE 2
SIDE 1
0.1
0
–0.1
–0.2
–0.3
–0.4
SIDE 2
50Ω
SIDE 1
50Ω
–0.5
1M
10M
100M
FREQUENCY – Hz
1
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
1G
Figure 6. Frequency Response and Flatness
–50
RL = 100Ω
–60
–70
2ND HARMONIC
–80
3RD HARMONIC
–90
–100
–110
10k
100k
1M
10M
FREQUENCY – Hz
100M
Figure 7. Distortion vs. Frequency, RL = 100 Ω
–60
RL = 1kΩ
VOUT = 2Vp-p
–70
–80
–90
–100
2ND HARMONIC
3RD HARMONIC
–110
–120
10k
100k
1M
10M
FREQUENCY – Hz
100M
Figure 8. Distortion vs. Frequency, RL = 1 kΩ
–4–
REV. A