Datasheet

AD8426
Rev. 0 | Page 15 of 28
160
140
120
100
80
60
40
20
0
0.1 1 10 100 1k 10k 100k
FREQUENCY (Hz)
CMRR (dB)
GAIN = 1000
GAIN = 100
GAIN = 10
GAIN = 1
BANDWIDTH
LIMITED
09490-327
Figure 27. CMRR vs. Frequency, RTI
120
100
80
60
40
20
0
0.1 1 10 100 1k 10k 100k
FREQUENCY (Hz)
CMRR (dB)
GAIN = 1000
GAIN = 1
GAIN = 100
GAIN = 10
BANDWIDTH
LIMITED
09490-328
Figure 28. CMRR vs. Frequency, RTI, 1 kΩ Source Imbalance
6
4
2
0
–2
–4
5
3
1
–1
–3
–5
–6
0 20 40 60 80 10010 30 50 70 90 110 120
WARM-UP TIME (Seconds)
CHANGE IN INPUT OFFSET VOLTAGE (µV)
09490-329
Figure 29. Change in Input Offset Voltage vs. Warm-Up Time
0
30
25
20
15
10
5
–50
250
200
150
100
50
0
–45 –25 –5 15 35 55 75 95 115 135
INPUT BIAS CURRENT (nA)
INPUT OFFSET CURRENT (pA)
TEMPERATURE (°C)
I
OS
±I
B
09490-330
Figure 30. Input Bias Current and Input Offset Current vs. Temperature
40
–80
–60
–40
–20
0
20
–60 –40 –20 0 20 40 60 100 14080 120
GAIN ERROR (µV/V)
TEMPERATURE (°C)
NORMALIZED AT 25°C
09490-125
Figure 31. Gain Error vs. Temperature, G = 1
10
–20
–15
–10
–5
0
5
–60 –40 –20 0 20 40 60 100 14080 120
CMRR (µV/V)
TEMPERATURE (°C)
REPRESENTATIVE DATA
NORMALIZED AT 25°C
09490-126
Figure 32. CMRR vs. Temperature, G = 1