Datasheet

Data Sheet ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4
Rev. E | Page 7 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, all plots are characterized for the ADA4891-1, ADA4891-2, ADA4891-3, and ADA4891-4. For the ADA4891-1
and ADA4891-2, the typical R
F
value is 604 Ω. For the ADA4891-3 and ADA4891-4, the typical R
F
value is 453 Ω.
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
4
0.1
1
10
100
1k
NORMALIZED CLOSED-LOOP GAIN (dB)
FREQUENCY
(MHz)
V
S
= 5V
V
OUT
= 200mV p-p
R
F
= 604Ω
R
L
= 1kΩ
G = +10
G = +5
G = –1
OR +2
G = +1
08054-028
Figure 7. Small-Signal Frequency Response vs. Gain, V
S
= 5 V,
ADA4891-1/ADA4891-2
–15
–12
–9
–6
–3
0
3
6
0.1 1
10
100
1k
CLOSED-LOOP GAIN (dB)
FREQUENCY
(MHz)
G = +1
V
OUT
= 200mV p-p
R
L
= 1kΩ
V
S
= 2.7V
V
S
= 5V
08054-029
V
S
= 3V
Figure 8. Small-Signal Frequency Response vs. Supply Voltage,
ADA4891-1/ADA4891-2
–4
–3
–2
–1
0
1
2
3
4
5
0.1 1
10
100
1k
CLOSED-LOOP GAIN (dB)
FREQUENCY (MHz)
V
S
= 5V
G = +1
V
OUT
= 200mV p-p
R
L
= 1kΩ
08054-030
+125°C
+85°C
+25°C
0°C
–40°C
Figure 9. Small-Signal Frequency Response vs. Temperature, V
S
= 5 V,
ADA4891-1/ADA4891-2
5
4
3
2
1
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
0.1
1 10
100
1k
FREQUENCY (MHz)
NORMALIZED CLOSED-LOOP GAIN (dB)
08054-076
G = +10
G = +5
G = +1
G = –1 OR +2
V
S
= 5V
V
OUT
= 200mV p-p
R
F
= 453Ω
R
L
= 1kΩ
Figure 10. Small-Signal Frequency Response vs. Gain, V
S
= 5 V,
ADA4891-3/ADA4891-4
6
3
0
–3
–6
–9
–12
–15
0.1 1 10 100 1k
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
08054-077
V
S
= 2.7V
G = +1
V
OUT
= 200mV p-p
R
L
= 1kΩ
V
S
= 3V
V
S
= 5V
Figure 11. Small-Signal Frequency Response vs. Supply Voltage,
ADA4891-3/ADA4891-4
–4
–3
–2
–1
0
1
2
3
4
5
0.1
1 10 100 1k
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
08054-078
V
S
= 5V
G = +1
V
OUT
= 200mV p-p
R
L
= 1kΩ
+125°C
+85°C
+25°C
0°C
–40°C
Figure 12. Small-Signal Frequency Response vs. Temperature, V
S
= 5 V,
ADA4891-3/ADA4891-4