Datasheet

Data Sheet AD8237
Rev. 0 | Page 13 of 28
160
140
120
100
60
80
40
20
0
0.1 100k10k1k100101
CMRR (dB)
FREQUENCY (Hz)
GAIN = 1
GAIN = 10
GAIN = 100
GAIN = 1000
BOTH BANDWIDTH MODES
ONLY BW LIMIT CHANGES
GAIN = 1
LOW BANDWIDTH MODE ONLY
BW LIMIT
10289-027
Figure 28. CMRR vs. Frequency
160
140
120
100
60
80
40
20
0
0.1 100k10k1k100101
CMRR (dB)
FREQUENCY (Hz)
GAIN = 1
GAIN = 10
GAIN = 100
GAIN = 1000
BOTH BANDWIDTH MODES
ONLY BW LIMIT CHANGES
GAIN = 1
LOW BANDWIDTH MODE ONLY
BW LIMIT
10289-028
Figure 29. CMRR vs. Frequency, 1 kΩ Source Imbalance
10k
1k
100
10
0.
1 100k10k1k100101
NOISE (nV/√Hz)
FREQUENCY (Hz)
G = 1, LOW BANDWIDTH MODE
G = 10, LOW BANDWIDTH MODE
G = 10, HIGH BANDWIDTH MODE
G = 100, LOW BANDWIDTH MODE
G = 100, HIGH BANDWIDTH MODE
10289-029
Figure 30. Voltage Noise Spectral Density vs. Frequency
0.4µV/DIV
1s/DIV
10289-031
Figure 31. 0.1 Hz to 10 Hz RTI Voltage Noise
1k
100
10
1 100k10k1k100
10
NOISE (nV/√Hz)
FREQUENCY (Hz)
VALID FOR BOTH BANDWIDTH MODES
10289-032
Figure 32. Current Noise Spectral Density vs. Frequency
1.5pA/DIV 1s/DIV
10289-033
Figure 33. 0.1 Hz to 10 Hz RTI Current Noise