AD620

Rev. G | Page 8 of 20

FREQUENCY (Hz)

1000

100

10

1

10

1000

100

Figure 11. Current Noise Spectral Density vs. Frequency

TIME (1 SEC/DIV)

Figure 12. 0.1 Hz to 10 Hz RTI Voltage Noise (G = 1)

TIME (1 SEC/DIV)

Figure 13. 0.1 Hz to 10 Hz RTI Voltage Noise (G = 1000)

Figure 14. 0.1 Hz to 10 Hz Current Noise, 5 pA/Div

100

1000

AD620A

FET INPUT

IN-AMP

SOURCE RESISTANCE (

Ω)

100,000

10

1k

10M

10,000

10k

1M

100k

Figure 15. Total Drift vs. Source Resistance

FREQUENCY (Hz)

160

0

1M

80

40

1

60

0.1

140

100

120

100k

10k

1k

100

10

G = 1000

G = 100

G = 10

G = 1

20

Figure 16. Typical CMR vs. Frequency, RTI, Zero to 1 kΩ Source Imbalance