Datasheet

Data Sheet ADA4084-1/ADA4084-2/ADA4084-4
Rev. I | Page 13 of 36
1000
100
10
1
0.001 0.01 0.1 1 10
V
DO
(mV)
SINK CURRENT (mA)
V
SY
= ±1.5V
T
A
= 25°C
V
OL
– (V–)
08237-010
Figure 22. Dropout Voltage (V
DO
) vs. Sink Current
120
–40
270
–90
0.1 100k
GAIN (dB)
PHASE (Degrees)
FREQUENCY (kHz)
–45
0
45
90
135
180
225
–20
20
0
40
60
80
100
1 10 100 1k 10k
V
SY
= ±1.5V
T
A
= 25°C
R
L
= 10kΩ
08237-011
Figure 23. Open-Loop Gain and Phase vs. Frequency
60
–20
10 100M
GAIN (dB)
FREQUENCY (Hz)
–10
0
10
20
30
40
50
100 1k 10k 100k 10M1M
A
V
= +100
A
V
= +10
A
V
= +1
V
SY
= ±1.5V
T
A
= 25°C
08237-012
Figure 24. Closed-Loop Gain vs. Frequency
1000
100
10
1
0.10
0.01
10 100M
Z
OUT
(Ω)
FREQUENCY (Hz)
100 1k 10k 100k 10M1M
V
SY
= ±1.5V
T
A
= 25°C
A
V
= +10
A
V
= +100
A
V
= +1
08237-013
Figure 25. Output Impedance (Z
OUT
) vs. Frequency
140
–20
10 100M
PSRR (dB)
FREQUENCY (Hz)
0
20
40
60
80
100
120
100 1k 10k 100k 10M1M
V
SY
= ±1.5V
T
A
= 25°C
PSRR–
PSRR+
08237-014
Figure 26. PSRR vs. Frequency
140
120
100
80
60
40
20
0
10 100M
CMRR (dB)
FREQUENCY (Hz)
100 1k 10k 100k 10M1M
V
SY
= ±1.5V
T
A
= 25°C
08237-221
Figure 27. CMRR vs. Frequency
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