Datasheet

ADA4939-1/ADA4939-2
Rev. 0 | Page 9 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, +V
S
= 5 V, −V
S
= 0 V, V
OCM
= +V
S
/2, R
G
= 200 , R
F
= 402 , R
T
= 60.4 Ω, G = 1, R
L, dm
= 1 kΩ, unless otherwise noted.
Refer to
Figure 39 for test setup. Refer to Figure 42 for signal definitions.
2
–14
–12
–10
–8
–6
–4
–2
0
1 10 100 1k
NORMALIZED CLOSED-LOOP GAIN (dB)
FREQUENCY (MHz)
G = +2.00
G = +3.16
G = +5.00
R
G
= 200Ω, R
T
= 60.4Ω
R
G
= 127Ω, R
T
= 66.3Ω
R
G
= 80.6Ω, R
T
= 76.8Ω
V
OUT, dm
= 100mV p-p
07429-007
Figure 7. Small Signal Frequency Response for Various Gains
3
–12
–10
–8
–6
–4
–2
0
2
–11
–9
–7
–5
–3
–1
1
1 10 100 1k
NORMALIZED CLOSED-LOOP GAIN (dB)
FREQUENCY (MHz)
V
S
= 3.3V
V
S
= 5.0V
07429-008
V
OUT, dm
= 100mV p-p
Figure 8. Small Signal Frequency Response for Various Supplies
3
–12
–10
–8
–6
–4
–2
0
2
–11
–9
–7
–5
–3
–1
1
1 10 100 1k
NORMALIZED CLOSED-LOOP GAIN (dB)
FREQUENCY (MHz)
–40°C
+25°C
+105°C
07429-009
V
OUT, dm
= 100mV p-p
Figure 9. Small Signal Frequency Response for Various Temperatures
2
–14
–12
–10
–8
–6
–4
–2
0
1 10 100 1k
NORMALIZED CLOSED-LOOP GAIN (dB)
FREQUENCY (MHz)
G = +2.00
G = +3.16
G = +5.00
07429-010
R
G
= 200Ω, R
T
= 60.4Ω
R
G
= 127Ω, R
T
= 66.3Ω
R
G
= 80.6Ω, R
T
= 76.8Ω
V
OUT, dm
= 2V p-p
Figure 10. Large Signal Frequency Response for Various Gains
2
–12
–10
–8
–6
–4
–2
0
1 10 100 1k
NORMALIZED CLOSED-LOOP GAIN (dB)
FREQUENCY (MHz)
V
S
= 3.3V
V
S
= 5.0V
07429-011
V
OUT, dm
= 2V p-p
Figure 11. Large Signal Frequency Response for Various Supplies
3
–12
–10
–8
–6
–4
–2
0
2
–11
–9
–7
–5
–3
–1
1
1 10 100 1k
NORMALIZED CLOSED-LOOP GAIN (dB)
FREQUENCY (MHz)
–40°C
+25°C
+105°C
07429-012
V
OUT, dm
= 2V p-p
Figure 12. Large Signal Frequency Response for Various Temperatures