Datasheet

Data Sheet ADA4857-1/ADA4857-2
Rev. C | Page 9 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
T = 25°C, G = +1, R
F
= 0 Ω, and, R
G
open, R
S
= 100 Ω for SOIC, (for G = +2, R
F
= R
G
= 499 Ω), unless otherwise noted.
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
1
10
100
1000
07040-008
FREQUENCY (MHz)
NORMALIZED CLOSED-LOOP GAIN (dB)
G = +1
G = +2
G = +5
G = +10
V
S
= ±5V
R
L
= 1kΩ
V
OUT
= 0.2V p-p
Figure 8. Small Signal Frequency Responses for Various Gains (LFCSP)
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
1
10 100
1000
07040-009
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
G = +1
R
L
= 1kΩ
V
OUT
= 0.2V p-p
±5V
+5V
Figure 9. Small Signal Frequency Response for Various Supply Voltages (LFCSP)
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
1 10 100 1000
07040-010
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
–40°C
+125°C
+25°C
G = +1
V
S
= ±5V
R
L
= 1kΩ
V
OUT
= 0.2V p-p
Figure 10. Small Signal Frequency Response for Various Temperatures (LFCSP)
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
1 10 100 1000
07040-011
FREQUENCY (MHz)
NORMALIZED CLOSED-LOOP GAIN (dB)
G = +1
G = +2
G = +10
V
S
= ±5V
R
L
= 1kΩ
V
OUT
= 2V p-p
G = +5
Figure 11. Large Signal Frequency Responses for Various Gains (LFCSP)
1 10
100 1000
07040-012
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
NO CAP LOAD
G = +2
V
S
= ±5V
R
L
= 1kΩ
V
OUT
= 0.2V p-p
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
4
5
6
7
8
9
5pF
10pF
Figure 12. Small Signal Frequency Response for Various Capacitive Loads (LFCSP)
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
1 10 100 1000
07040-013
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
G = +1
V
S
= ±5V
R
L
= 100Ω
1V p-p
4V p-p
Figure 13. Large Signal Frequency Response vs. V
OUT
(LFCSP)