AD620
TYPICAL PERFORMANCE CHARACTERISTICS
(@ 25°C, V
S
= ±15 V, R
L
= 2 kΩ, unless otherwise noted.)
50
SAMPLE SIZE = 360
40
PERCENTAGE OF UNITS
2.0
1.5
INPUT BIAS CURRENT (nA)
1.0
0.5
0
–0.5
–1.0
–1.5
–I
B
+I
B
30
20
10
00775-0-005
0
–80
–40
0
40
80
INPUT OFFSET VOLTAGE (
µ
V)
–2.0
–75
–25
25
75
TEMPERATURE (°C)
125
175
Figure 5. Typical Distribution of Input Offset Voltage
50
SAMPLE SIZE = 850
40
PERCENTAGE OF UNITS
Figure 8. Input Bias Current vs. Temperature
2.0
CHANGE IN OFFSET VOLTAGE (µV)
1.5
30
1.0
20
0.5
10
0
–1200
–600
0
600
1200
INPUT BIAS CURRENT (pA)
00775-0-006
0
0
1
2
3
WARM-UP TIME (Minutes)
4
5
Figure 6. Typical Distribution of Input Bias Current
50
SAMPLE SIZE = 850
40
PERCENTAGE OF UNITS
Figure 9. Change in Input Offset Voltage vs. Warm-Up Time
1000
GAIN = 1
VOLTAGE NOISE (nV/ Hz)
100
GAIN = 10
30
20
10
10
GAIN = 100, 1,000
GAIN = 1000
BW LIMIT
0
–400
–200
0
200
400
00775-0-007
1
1
10
100
1k
FREQUENCY (Hz)
10k
100k
INPUT OFFSET CURRENT (pA)
Figure 7. Typical Distribution of Input Offset Current
Figure 10. Voltage Noise Spectral Density vs. Frequency (G = 1−1000)
Rev. G | Page 7 of 20
00775-0-010
00775-0-009
00775-0-008
AD [ ANALOG DEVICES ]
