AD713
TEST CIRCUITS
9kΩ
AD713
PIN 4
+V
1kΩ
S
+V
4
S
+
+
0.1µF
0.1µF
1µF
1µF
1/4
+
AD713
COM
1µF
0.1µF
OUTPUT
1/4
INPUT
SIGNAL
OR
ALL 4 AMPLIFIERS
ARE CONNECTED
AS SHOWN.
AD713
PIN 11
V
–V
S
OUT
AD713
1kΩ
R
C
L
L
11
V
2kΩ
10pF
IN
GROUND*
*THE SIGNAL INPUT (1kHz SINEWAVE, 2V p-p) IS APPLIED TO ONE
AMPLIFIER AT A TIME. THE OUTPUTS OF THE OTHER THREE
AMPLIFIERS ARE THEN MEASURED FOR CROSSTALK.
SQUARE
WAVE
INPUT
1µF
0.1µF
–V
+
S
Figure 26. Crosstalk Test Circuit for Figure 21
Figure 27. Unity Gain Follower Circuit for Figure 22 and Figure 23
7.5pF
2kΩ
+V
4
S
+
2kΩ
1µF
0.1µF
V
IN
1/4
V
OUT
AD713
R
2kΩ
C
L
10pF
L
SQUARE
WAVE
INPUT
11
1µF
0.1µF
+
–V
S
Figure 28. Unity Gain Inverter Circuit for Figure 24 and Figure 25
Rev. F | Page 10 of 20
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