Datasheet

AD8251
Rev. B | Page 10 of 24
20
–10
–60 140
06287-019
TEMPERATURE (ºC)
INPUT BIAS CURRENT AND OFFSET CURRENT (nA)
15
10
5
0
–5
–40 –20 0 20 40 60 80 120100
I
B
–
I
OS
I
B
+
Figure 18. Input Bias Current and Offset Current vs. Temperature
140
120
100
80
60
40
10
06287-020
FREQUENCY (Hz)
CMRR (dB)
100 1k 10k 100k 1M
G = 1
G = 2
G = 4
G = 8
Figure 19. CMRR vs. Frequency
120
100
140
80
60
40
10 1M
06287-021
FREQUENCY (Hz)
CMRR (dB)
100 1k 10k 100k
G = 1
G = 2
G = 4
G = 8
Figure 20. CMRR vs. Frequency, 1 kΩ Source Imbalance
–15
–50 130
06287-022
TEMPERATURE (°C)
CMRR (µV/V)
10
15
5
0
–5
–10
–30 –10 10 30 50 70 90 110
Figure 21. ΔCMRR vs. Temperature, G = 1
25
–10
1k 100M
06287-023
FREQUENCY (Hz)
GAIN (dB)
10k 100k 1M 10M
20
15
10
5
0
–5
V
S
= ±15V
V
IN
= 200mV p-p
R
L
= 2k
G = 1
G = 2
G = 4
G = 8
Figure 22. Gain vs. Frequency
40
30
20
10
–10
–30
0
–20
–40
–10–8–6–4–20246810
06287-024
GAIN NONLINEARITY (10ppm/DIV)
OUTPUT VOLTAGE (V)
Figure 23. Gain Nonlinearity vs. Output Voltage, G = 1, R
L
= 10 kΩ, 2 kΩ, 600 Ω