AD8221BRZ-R7 datasheet(12/25 Pages) AD

12 / 25 page

AD8221

Rev. C | Page 11 of 24

0.40

0.45

0.50

0.55

0.60

0.65

0.70

0.75

0.80

–5

–15

–10

COMMON-MODE VOLTAGE (V)

VS = ±5V

VS = ±15V

Figure 10. IBIAS vs. CMV

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

0.1

0.01

WARM-UP TIME (min)

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

–5

–4

–3

–2

–1

–40

–20

100

120

140

TEMPERATURE (°C)

INPUT BIAS CURRENT

VS = ±15V

INPUT OFFSET CURRENT

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

100

120

140

160

180

0.1

100

10k

100k

FREQUENCY (Hz)

GAIN = 1

GAIN = 10

GAIN = 100

GAIN = 1000

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

100

120

140

160

180

0.1

100

10k

100k

FREQUENCY (Hz)

GAIN = 1

GAIN = 10

GAIN = 100

GAIN = 1000

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

100

10k

100k

10k

100

100k

10M

SOURCE RESISTANCE (

BEST AVAILABLE FET

INPUT IN-AMP GAIN = 1

BEST AVAILABLE FET

INPUT IN-AMP GAIN = 1000

AD8221 GAIN = 1

AD8221 GAIN = 1000

Figure 15. Total Drift vs. Source Resistance

AD8221BRZ-R7 Datasheet(PDF) 12 Page - Analog Devices

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