Datasheet

AD8531/AD8532/AD8534
Rev. F | Page 8 of 20
LOAD CURRENT (mA)
IMPEDANCE
(
Ω)
200
160
120
80
40
180
140
100
60
20
0
1k 10k 100k 1M 10M 100M
01099-018
V
S
= 5V
T
A
= 25°C
A
V
= 1
A
V
= 10
Figure 18. Closed-Loop Output Impedance vs. Frequency
01099-019
MARKER 41µV/√Hz
100µV/DIV
10
0%
100
90
V
S
= 5V
A
V
= 1000
T
A
= 25°C
FREQUENCY = 1kHz
Figure 19. Voltage Noise Density vs. Frequency (1 kHz)
01099-020
MARKER 25.9µV/√Hz
200µV/DIV
10
0%
100
90
V
S
= 5V
A
V
= 1000
T
A
= 25°C
FREQUENCY = 10kHz
Figure 20. Voltage Noise Density vs. Frequency (10 kHz)
FREQUENCY (Hz)
CURRENT NOISE DENSITY (pA/√Hz)
1
0.1
0.01
10 100 1k 10k 100k
01099-021
V
S
= 5V
T
A
= 25°C
Figure 21. Current Noise Density vs. Frequency
FREQUENCY (Hz)
COMMON-MODE REJECTION (dB)
110
100
90
80
70
60
50
40
1k 10k 100k 1M 10M
01099-022
V
S
= 5V
T
A
= 25°C
Figure 22. Common-Mode Rejection vs. Frequency
FREQUENCY (Hz)
POWER SUPPLY REJECTION (dB)
140
120
40
60
80
100
20
0
–20
–40
–60
100 1k 10k 100k 1M 10M
01099-023
PSSR+
PSSR–
V
S
= 2.7V
T
A
= 25°C
Figure 23. Power Supply Rejection vs. Frequency