AD620

Rev. G | Page 7 of 20

TYPICAL PERFORMANCE CHARACTERISTICS

INPUT OFFSET VOLTAGE (

µV)

20

30

40

50

–40

0

40

80

–80

SAMPLE SIZE = 360

10

0

Figure 5. Typical Distribution of Input Offset Voltage

INPUT BIAS CURRENT (pA)

0

10

20

30

40

50

–600

0

600

–1200

1200

SAMPLE SIZE = 850

Figure 6. Typical Distribution of Input Bias Current

10

20

30

40

50

–200

0

200

400

INPUT OFFSET CURRENT (pA)

–400

0

SAMPLE SIZE = 850

Figure 7. Typical Distribution of Input Offset Current

TEMPERATURE (

°C)

2.0

–2.0

175

–1.0

–1.5

–75

–0.5

0

0.5

1.0

1.5

125

75

25

–25

Figure 8. Input Bias Current vs. Temperature

1.5

0.5

WARM-UP TIME (Minutes)

2.0

0

01

1.0

4

3

2

5

Figure 9. Change in Input Offset Voltage vs. Warm-Up Time

FREQUENCY (Hz)

1000

1

1

100k

100

10

10k

1k

100

GAIN = 1

GAIN = 10

10

GAIN = 100, 1,000

GAIN = 1000

BW LIMIT

Figure 10. Voltage Noise Spectral Density vs. Frequency (G = 1−1000)