ADA4941-1 Analog Devices, ADA4941-1 Datasheet - Page 13

• Manufacturer Part Number: ADA4941-1
• Description: Single Supply Differential 18-Bit ADC Driver
• Manufacturer: Analog Devices

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