Data Sheet

ADA4941-1

Rev. D | Page 13 of 23

100

1

1

100M

FREQUENCY (Hz)

10

10

100

1k

10k

100k

1M

10M

Figure 36. Differential Output Voltage Noise vs. Frequency

2.65

2.35

–40

125

TEMPERATURE (°C)

VS =±5V

VS =+5V

VS =+3V

2.60

2.55

2.50

2.45

2.40

–25 –10

5

20

35

50

65

80

95

110

Figure 37. Input Bias Current vs. Temperature for Various Supplies

3.3

2.7

–40

120

TEMPERATURE (°C)

–20

0

20

40

60

80

100

3.2

3.1

3.0

2.9

2.8

REFERENCE IBIAS =5V

REFERENCE IBIAS =3V

REFERENCE IBIAS =10V

Figure 38. REF Input Bias Current vs. Temperature

28

0

11M

FREQUENCY (Hz)

26

24

22

20

18

16

14

12

10

8

6

4

2

10

100

1k

10k

100k

Figure 39. Input Current Noise vs. Frequency

3.5

1.5

–0.5

10.0

INPUT VOLTAGE WITH RESPECT TO VS– (V)

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

VS =±5V

VS = +5V

VS = +3V

Figure 40. Input Bias Current vs. Input Voltage

4.0

2.0

0

10.0

REFERENCE INPUT VOLTAGE WITH RESPECT TO VS– (V)

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

VS =±5V

VREF = VIN

VS = +5V

VS = +3V

Figure 41. REF Input Bias Current vs. REF Input Voltage