AD8139
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, differential gain = +1, R
G
= R
F
= 200 Ω, R
L, dm
= 1 kΩ, V
S
= ±5 V, T
A
= 25°C, V
OCM
= 0 V. Refer to the basic test
circuit in Figure 57 for the definition of terms.
2
1
2
G=1
G=2
1
G=1
NORMALIZED CLOSED-LOOP GAIN (dB)
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
–13
1
R
G
= 200Ω
V
O, dm
= 0.1V p-p
G = 10
NORMALIZED CLOSED-LOOP GAIN (dB)
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
–13
1
R
G
= 200Ω
V
O, dm
= 2.0V p-p
10
100
1000
04679-007
04679-009
04679-008
G=5
G=2
G=5
G = 10
10
100
1000
FREQUENCY (MHz)
04679-004
FREQUENCY (MHz)
Figure 7. Small Signal Frequency Response for Various Gains
5
4
3
2
V
S
= +5V
Figure 10. Large Signal Frequency Response for Various Gains
3
2
1
0
CLOSED-LOOP GAIN (dB)
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
10
V
O, dm
= 0.1V p-p
100
CLOSED-LOOP GAIN (dB)
1
V
S
= ±5V
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
V
O, dm
= 2.0V p-p
100
FREQUENCY (MHz)
1000
–12
10
V
S
= +5V
V
S
= ±5V
1000
FREQUENCY (MHz)
Figure 8. Small Signal Frequency Response for Various Power Supplies
3
2
1
0
04679-005
Figure 11. Large Signal Frequency Response for Various Power Supplies
3
2
1
0
+125°C
+85°C
+125°C
+85°C
CLOSED-LOOP GAIN (dB)
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
10
V
O, dm
= 0.1V p-p
100
FREQUENCY (MHz)
+25°C
1000
04679-006
CLOSED-LOOP GAIN (dB)
–1
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
10
V
O, dm
= 2.0V p-p
100
FREQUENCY (MHz)
1000
–40°C
+25°C
–40°C
Figure 9. Small Signal Frequency Response at Various Temperatures
Figure 12. Large Signal Frequency Response at Various Temperatures
Rev. B | Page 9 of 24
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