Datasheet

Data Sheet ADA4857-1/ADA4857-2
Rev. C | Page 13 of 20
PHASE
GAIN
–10
0
10
20
30
40
50
60
80
70
0.1
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
1
10 100
1000
OPEN-LOOP PHASE (Degrees)
07040-032
FREQUENCY (MHz)
OPEN-LOOP GAIN (dB)
V
S
= ±5V
R
L
= 1k
Ω
Figure 32. Open-Loop Gain and Phase vs. Frequency
07040-033
OUTPUT VOLTAGE (V)
TIME (40ns/DIV)
8
–8
6
–6
–4
4
–2
0
2
OUTPUT
R
L
= 100Ω
OUTPUT
R
L
= 1kΩ
INPUT
V
S
= ±5V
G = +1
Figure 33. Input Overdrive Recovery for Various Resistive Loads
–30
–20
–10
0
10
–80
–70
–60
–50
–40
0.1 1 10
100 1000
07040-034
FREQUENCY (MHz)
PSRR (dB)
–PSRR
+PSRR
V
S
= ±5V
R
L
= 1kΩ
Figure 34. Power Supply Rejection Ratio (PSRR) vs. Frequency
SOIC
LFCSP
–30
–20
–10
0
–100
–70
–80
–90
–60
–50
–40
0.1
1 10 100 1000
07040-035
FREQUENCY (MHz)
PD ISOLATION (dB)
G = +2
V
S
= ±5V
R
L
= 1kΩ
PD = 3V
Figure 35. PD Isolation vs. Frequency
07040-036
OUTPUT VOLTAGE (V)
TIME (200ns/DIV)
8
–8
6
–6
–4
4
–2
0
2
OUTPUT
R
L
= 100Ω
OUTPUT
R
L
= 1kΩ
2 × INPUT
V
S
= ±5V
G = +2
Figure 36. Output Overdrive Recovery for Various Resistive Loads
–30
–90
–80
–70
–60
–50
–40
0.1 1 10
100 1000
07040-037
FREQUENCY (MHz)
CMRR (dB)
V
S
= ±5V
R
L
= 1k
Ω
Figure 37. Common-Mode Rejection Ratio (CMRR) vs. Frequency