Datasheet

ADA4000-1/ADA4000-2/ADA4000-4
Rev. A | Page 9 of 16
10 100 1k
100
1
1 10k
FREQUENCY (Hz)
VOLTAGE NOISE DENSITY (nV/√Hz)
05791-026
10
V
S
= ±5V, ±15V
T
A
= 25°C
Figure 25. Voltage Noise Density vs. Frequency
120
0
1k 100M
FREQUENCY (Hz)
Z
OUT
(Ω)
05791-017
60
80
10k 100k 1M 10M
100
20
40
V
S
= ±15V
T
A
= 25°C
A
v
= +100
A
v
= +10 A
v
= +1
Figure 26. Output Impedance vs. Frequency
60
0
0600400200
LOAD CAPACITANCE (pF)
OVERSHOOT (%)
05791-022
800 1000
50
40
30
20
10
V
IN
= 100mV p-p
V
S
= ±5V, ±15V
R
L
= 0
A
V
= +1
+OVERSHOOT
–OVERSHOOT
Figure 27. Overshoot vs. Load Capacitance
0.6
–0.6
–5
TIME (Seconds)
V p-p (µV)
05791-025
5
0.4
0.2
0
–0.2
–0.4
–4–3–2–101234
V
S
= ±5V, ±15V
Figure 28. 0.1 Hz to 10 Hz Input Voltage Noise
50
–30
100 1k 100M
FREQUENCY (Hz)
CLOSED-LOOP GAIN (dB)
05791-011
–10
0
30
10k 100k 1M 10M
40
10
20
–20
A
V
= +100
A
V
= +10
A
V
= +1
V
S
= ±5V, ±15V
Figure 29. Closed-Loop Gain vs. Frequency