Datasheet

Data Sheet AD8137
Rev. E | Page 13 of 32
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
4
3
2
1
–3
–2
–1
0
–7
–6
–5
–4
–11
–10
–9
–8
1 10 100
1000
04771-0-037
G = 1
V
S
= ±5V
V
O, dm
= 0.1V p-p
R
F
= 500Ω
R
F
= 2kΩ
R
F
= 1kΩ
Figure 17. Small Signal Frequency Response for Various R
F
FREQUENCY (MHz)
DISTORTION (dBc)
–65
–70
–80
–75
–85
–90
–95
–100
–105
0.1 1 10
04771-0-045
V
S
= ±5V
V
S
= +5V
V
S
= +3V
G = 1
V
O, dm
= 2V p-p
Figure 18. Second Harmonic Distortion vs. Frequency and Supply Voltage
V
O, dm
(V p-p)
DISTORTION (dBc)
–50
–60
–65
–70
–55
–75
–80
–85
–90
–95
–100
0.25 1.25 2.25 3.25 4.25 5.25 7.25 8.256.25 9.25
04771-0-027
F
C
= 500kHz
SECOND HARMONIC SOLID LINE
THIRD HARMONIC DASHED LINE
V
S
= +5V
V
S
= +5V
V
S
= +3V
V
S
= +3V
Figure 19. Harmonic Distortion vs. Output Amplitude and Supply,
F
C
= 500 kHz
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
4
3
2
1
–3
–2
–1
0
–7
–6
–5
–4
–11
–10
–9
–8
1
10 100 1000
04771-0-036
G = 1
V
O, dm
= 2V p-p
R
F
= 500Ω
R
F
= 2kΩ
R
F
= 1kΩ
Figure 20. Large Signal Frequency Response for Various R
F
FREQUENCY (MHz)
DISTORTION (dBc)
–40
–70
–60
–50
–80
–90
–
100
–110
0.1 1 10
04771-0-063
V
S
= ±5V
V
S
= +5V
V
S
= +3V
G = 1
V
O, dm
= 2V p-p
Figure 21. Third Harmonic Distortion vs. Frequency and Supply Voltage
V
O, dm
(V p-p)
DISTORTION (dBc)
–50
–60
–65
–70
–55
–75
–80
–85
–90
–95
–100
0.25 1.25 2.25 3.25 4.25 5.25 7.25 8.256.25 9.25
04771-0-026
V
S
= +5V
V
S
= +5V
V
S
= +3V
V
S
= +3V
F
C
= 2MHz
SECOND HARMONIC SOLID
LINE
THIRD HARMONIC DASHED LINE
Figure 22. Harmonic Distortion vs. Output Amplitude and Supply, F
C
= 2 MHz