Analog Devices C1599c07 specifications AD620-Typical Characteristics

AD620–Typical Characteristics

1000
fA/!Hz
–
NOISECURRENT	100
	10

1	10	100	1000
		FREQUENCY – Hz
Figure 9. Current Noise Spectral Density vs. Frequency				Figure 11. 0.1 Hz to 10 Hz Current Noise, 5 pA/Div

2.0mV/DIV

RTI NOISE –

TIME – 1 SEC/DIV

100,000
–mV
RTI	10,000
858C,				IN-AMP
CTO
				FET INPUT
258	1000
FROM
DRIFTTOTAL					AD620A
	100
	10
		10k	100k	1M	10M
	1k

SOURCE RESISTANCE –V

Figure 10a. 0.1 Hz to 10 Hz RTI Voltage Noise (G = 1) Figure 12. Total Drift vs. Source Resistance

0.1mV/DIV

RTI NOISE –

TIME – 1 SEC/DIV

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

	+160
	+140	G = 1000
	+120	G = 100
	+100	G = 10
dB
		G = 1
–	+80
CMR
	+60
	+40
	+20
	0		10	100	1k	10k	100k
	0.1	1						1M
				FREQUENCY – Hz

Figure 13. CMR vs. Frequency, RTI, Zero to 1 kΩ Source Imbalance

–6– REV. E