AD8222_16 datasheet(10/25 Pages) AD

No de pièce	AD8222

Description	Precision, Dual-Channel Instrumentation Amplifier

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Fabricant	AD [Analog Devices]

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Data Sheet

AD8222

Rev. B | Page 9 of 24

200

150

100

50

0

–50

–100

–150

–200

–15

15

10

5

0

–5

–10

COMMON-MODE VOLTAGE (V)

VS = ±15V

VS = ±5V

Figure 10. IBIAS vs. Common-Mode Voltage

2.0

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

02

46

8

10

WARM-UP TIME (Minutes)

Figure 11. Change in Input Offset Voltage vs. Warm-Up Time

1000

800

600

400

200

0

–200

–400

–600

–800

–1000

–55

–35

–15

5

25

45

65

85

105

125

TEMPERATURE (°C)

POSITIVE

OFFSET CURRENT

NEGATIVE

Figure 12. Input Bias Current and Offset Current vs. Temperature

160

150

140

130

120

110

100

90

80

70

60

50

40

30

20

10

0

0.1

1M

100k

10k

1k

100

10

1

FREQUENCY (Hz)

GAIN = 1

GAIN = 10

GAIN = 100

GAIN = 1000

BANDWIDTH

LIMITED

Figure 13. Positive PSRR vs. Frequency, RTI (G = 1 to 1000)

160

150

140

130

120

110

100

90

80

70

60

50

40

30

20

10

0

0.1

1M

100k

10k

1k

100

10

1

FREQUENCY (Hz)

GAIN = 1

GAIN = 10

GAIN = 100

GAIN = 1000

Figure 14. Negative PSRR vs. Frequency, RTI (G = 1 to 1000)

10k

1k

100

10

1

10M

1M

100k

10k

1k

100

10

SOURCE RESISTANCE (Ω)

GAIN = 1

GAIN = 10

GAIN = 100

GAIN = 1000

Figure 15. Total Drift vs. Source Resistance

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