Datasheet

AD8556
Rev. A | Page 10 of 28
05448-017
FREQUENCY (Hz)
1M100k100 1k 10k
CMRR (dB)
40
80
120
0
V
SY
= ±2.5V
GAIN = 70
Figure 16. CMRR vs. Frequency
05448-018
FREQUENCY (Hz)
1M100 1k 10k 100k
CMRR (dB)
120
80
4
0
0
V
SY
= ±2.5V
GAIN = 1280
Figure 17. CMRR vs. Frequency
05448-019
TEMPERATURE (°C)
150–50 –25 0 25 50 75 100 125
GAIN = 1280
GAIN = 800
GAIN = 400
GAIN = 100
GAIN = 70
CMRR (dB)
145
135
125
115
105
95
85
75
V
SY
= 5V
Figure 18. CMRR vs. Temperature at Different Gains
05448-020
FREQUENCY (kHz)
1050
VOLTAGE NOISE DENSITY (nV/√Hz)
60
50
40
30
20
10
V
SY
= ±2.5V
GAIN = 70
Figure 19. Voltage Noise Density vs. Frequency (0 Hz to 10 kHz)
05448-021
FREQUENCY (kHz)
5002500
VOLTAGE NOISE DENSITY (nV/√Hz)
30
25
20
15
10
5
V
SY
= ±2.5V
GAIN = 70
35
Figure 20. Voltage Noise Density vs. Frequency (0 Hz to 500 kHz)
05448-022
TIME (1s/DIV)
NOISE (µV)
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
V
SY
= ±2.5V
GAIN = 1000
Figure 21. Low Frequency Input Voltage Noise (0.1 Hz to 10 Hz)