–70
–80
–90
–100
–110
–120
–130
–140
300
1k
3k
10k
30k 100k 300k
1M
FREQUENCY – Hz
Figure 25. Crosstalk vs. Frequency
+VS
0.01µF
8
VIN
1/2
AD822
4
0.01µF
RL
100pF
VOUT
–VS
AD822
VOUT
+VS
20kΩ
2.2kΩ
0.1µF
2
8
20V p-p
3
1/2
AD822
1
VIN
1µF
5kΩ
6
7
1/2
AD822 5
5kΩ
VOUT
CROSSTALK = 20 LOG
10VIN
0.1µF
1µF
–VS
Figure 28. Crosstalk Test Circuit
5V
100
90
5µs
10
0%
Figure 26. Unity-Gain Follower
5V
100
90
10µs
Figure 29. Large Signal Response Unity Gain Follower;
VS = ±15 V, RL = 10 kΩ
10mV
100
90
500ns
10
10
0%
0%
Figure 27. 20 V p-p, 25 kHz Sine Wave Input; Unity Gain
Follower; RL = 600 Ω, VS = ±15 V
Figure 30. Small Signal Response Unity Gain Follower;
VS = ±15 V, RL = 10 kΩ
REV. A
–11–