Datasheet

ADA4941-1
Rev. C | Page 13 of 24
100
1
1 100M
FREQUENCY (Hz)
DIFFERENTIAL OUTPUT VOLTAGE NOISE (nV/√Hz)
10
10 100 1k 10k 100k 1M 10M
05704-034
Figure 35. Differential Output Voltage Noise vs. Frequency
2.65
2.35
–40 125
TEMPERATURE (°C)
INPUT BIAS CURRENT (µA)
V
S
= ±5V
V
S
= +5V
V
S
= +3V
2.60
2.55
2.50
2.45
2.40
–25 –10 5 20 35 50 65 80 95 110
05704-035
Figure 36. Input Bias Current vs. Temperature for Various Supplies
3.3
2.7
–40 120
TEMPERATURE (°C)
REFERENCE BIAS CURRENT (µA)
–20 0 20 40 60 80 100
05704-036
3.2
3.1
3.0
2.9
2.8
REFERENCE I
BIAS
= 5V
REFERENCE I
BIAS
= 3V
REFERENCE I
BIAS
= 10V
Figure 37. REF Input Bias Current vs. Temperature
28
0
1
1M
FREQUENCY (Hz)
INPUT CURRENT NOISE (pA/√Hz)
26
24
22
20
18
16
14
12
10
8
6
4
2
10 100 1k 10k 100k
05704-037
Figure 38. Input Current Noise vs. Frequency
3.5
1.5
–0.5
10.0
INPUT VOLTAGE WITH RESPECT TO V
S–
(V)
INPUT BIAS CURRENT (µA)
05704-038
3.0
2.5
2.0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
V
S
= ±5V
V
S
= +5V
V
S
= +3V
Figure 39. Input Bias Current vs. Input Voltage
4.0
2.0
0 10.0
REFERENCE INPUT VOLTAGE WITH RESPECT TO V
S–
(V)
REFERENCE INPUT BIAS CURRENT (µA)
05704-039
3.5
3.0
2.5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
V
S
= ±5V
VREF = VIN
V
S
= +5V
V
S
= +3V
Figure 40. REF Input Bias Current vs. REF Input Voltage