AD8231

Data Sheet

Rev. E | Page 16 of 24

1000

900

800

700

600

500

400

300

200

100

0

1

100k

10k

1k

100

10

FREQUENCY (Hz)

Figure 41. Operational Amplifier Voltage Spectral Noise Density vs. Frequency

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

–0.2

–40

125

110

95

80

65

50

35

20

5

–10

–25

TEMPERATURE (°C)

5V

3V

Figure 42. Operational Amplifier Bias Current vs. Temperature

400

–400

–300

–200

–100

0

200

300

100

–3

3

2

1

0

–1

–2

Figure 43. Operational Amplifier Bias Current vs. Common Mode

1.0

0.8

0.6

0.4

0.2

–1.0

–0.8

–0.6

–0.4

–0.2

0.1

100

10

1

OUTPUT CURRENT (mA)

–40°C

+25°C

+85°C

+125°C

Figure 44. Operational Amplifier Output Voltage Swing vs.

1.0

0.8

0.6

0.4

0.2

–1.0

–0.8

–0.6

–0.4

–0.2

0.1

100

10

1

OUTPUT CURRENT (mA)

–40°C

+25°C

+85°C

+125°C

Figure 45. Operational Amplifier Output Voltage Swing vs.

140

120

100

80

60

40

20

0

1

100k

10k

1k

100

10

FREQUENCY (Hz)

+PSRR

–PSRR

Figure 46. Operational Amplifier Power Supply Rejection Ratio