AD704
50
CHANGE IN OFFSET VOLTAGE –
µV
4
120
100
3
INPUT BIAS CURRENT – pA
PERCENTAGE OF UNITS
40
80
POSITIVE I
B
60
30
2
20
40
NEGATIVE I
B
20
1
10
0
–0.8
–0.4
0
+0.4
+0.8
INPUT OFFSET VOLTAGE DRIFT –
µV/°C
0
0
1
2
3
4
5
WARM-UP TIME – Minutes
0
–15
–10
–5
0
5
10
15
COMMON MODE VOLTAGE – Volts
Figure 9. Typical Distribution of
Offset Voltage Drift
Figure 10. Change in Input Off-
set Voltage vs. Warm-Up Time
Figure 11. Input Bias Current vs.
Common-Mode Voltage
1000
1000
VOLTAGE NOISE – nV/ Hz
CURRENT NOISE – fA/
100
Hz
100
10
10
100Ω
20MΩ
10kΩ
V
OUT
1
1
10
100
FREQUENCY – Hz
1000
1
1
10
100
1000
FREQUENCY – Hz
Figure 12. Input Noise Voltage
Spectral Density
Figure 13. Input Noise Current
Spectral Density
Figure 14. 0.1 Hz to 10 Hz Noise
Voltage
500
+160
+140
180
160
V
S
=
±15V
T
A
= +25°C
QUIESCENT CURRENT –
µA
450
FIGURE 15
CMR – dB
+120
V
S
=
±
15V
+100
+80
+60
+40
140
120
100
–PSR
80
+PSR
60
40
400
+125°C
+25°C
350
–55°C
300
0
5
10
15
20
+20
0
0.1
PSR – dB
1
10
1k
10k
FREQUENCY – Hz
100
100k 1M
20
0.1
1
10
SUPPLY VOLTAGE –
±Volts
100
1k
10k
FREQUENCY – Hz
100k 1M
Figure 15. Quiescent Supply
Current vs. Supply Voltage (per
Amplifier)
Figure 16. Common-Mode
Rejection vs. Frequency
Figure 17. Power Supply Rejection
vs. Frequency
REV. A
–5–
AD [ ANALOG DEVICES ]
