Datasheet

Data Sheet ADA4898-1/ADA4898-2
Rev. D | Page 9 of 20
–20
–10
0
10
20
30
40
50
60
70
80
110
90
100
07037-016
FREQUENCY (Hz)
OPEN-LOOP GAIN (dB)
100k 1M 1G10M 100M
PHASE
GAIN
–70
–80
–90
–100
–110
–120
–130
–140
–150
–160
–170
–180
–190
–200
OPEN-LOOP PHASE (Degrees)
ΔV
OUT
= ±5V
V
S
= ±15V
Figure 19. Open-Loop Gain and Phase vs. Frequency
07037-017
FREQUENCY (Hz)
DISTORTION (dBc)
–140
–120
–100
–80
–60
–40
–20
0
100k 1M 10M
G = +1, HD2
G = +1, HD3
G = +2, HD3, R
F
= 250Ω
G = +2, HD2, R
F
= 250Ω
R
L
= 1kΩ
V
S
= ±15V
V
OUT
= 2V p-p
Figure 20. Harmonic Distortion vs. Frequency and Gain
07037-018
FREQUENCY (Hz)
DISTORTION (dBc)
–140
–120
–100
–80
–60
–40
–20
0
100k 1M 10M
R
L
= 1kΩ, HD3
R
L
= 100Ω, HD3
G = +1
V
S
= ±15V
V
OUT
= 2V p-p
R
L
= 1kΩ, HD2
R
L
= 100Ω, HD2
Figure 21. Harmonic Distortion vs. Frequency and Loads
1
07073-019
OUTPUT VOLTAGE (V p-p)
DISTORTION (dBc)
–135
–125
–120
–130
–115
–110
–105
–100
–95
2 3 4 5 6
HD2
HD3
f = 100kHz
G = +1
R
L
= 1kΩ
V
S
= ±15V
Figure 22. Harmonic Distortion vs. Output Amplitude
07037-020
FREQUENCY (Hz)
DISTORTION (dBc)
–140
–120
–100
–80
–60
–40
–20
0
100k 1M
10M
R
L
= 1kΩ, HD3
R
L
= 100Ω, HD3
R
L
= 100Ω, HD2
G = +1
V
S
= ±5V
V
OUT
= 2V p-p
R
L
= 1kΩ, HD2
Figure 23. Harmonic Distortion vs. Frequency and Loads
–0.04
–0.02
0
0.02
0.04
0.06
0.08
0.10
0.12
0.14
C
L
= 0pF
C
L
= 5pF
C
L
= 15pF
C
L
= 33pF
07037-021
TIME (20ns/DIV)
OUTPUT VOLTAGE (V)
V
OUT
= 100mV p-p
G = +1
R
L
= 1kΩ
V
S
= ±15V
Figure 24. Small Signal Transient Response for Various Capacitive Loads