Datasheet

AD704
Rev. E | Page 9 of 16
1k
100
10
1
0.1
0.01
0.001
1 10 100 1k 10k 100k
FREQUENCY (Hz)
CLOSED-LOOP OUTPUT IMPEDANCE (Ω)
A
V
= –1000
A
V
= +1
I
OUT
= 1mA
00818-025
Figure 25. Closed-Loop Output Impedance vs. Frequency
1/4
AD704
+V
S
0.1µF
0.1µF
R
L
2k
C
L
R
F
V
OUT
V
IN
–V
S
SQUARE
WAVE INPUT
00818-026
Figure 26. Unity Gain Follower (for Large Signal Applications, Resistor R
F
Limits the Current Through the Input Protection Diodes)
00818-027
100
90
10
0%
2V
50µs
Figure 27. Unity Gain Follower Large Signal Pulse Response R
F
= 10 kΩ,
C
L
= 1000 pF
00818-028
100
90
10
0%
20mV
5µs
Figure 28. Unity Gain Follower Small Signal Pulse Response R
F
= 0 Ω,
C
L
= 100 pF
00818-029
100
90
10
0%
20mV
5µs
Figure 29. Unity Gain Follower Small Signal Pulse Response R
F
= 0 Ω,
C
L
= 1000 pF
1/4
AD704
+V
S
0.1µF
0.1µF
R
L
2.5k
C
L
10k
10k
V
OUT
V
IN
–V
S
SQUARE
WAVE INPUT
00818-030
Figure 30. Unity Gain Inverter Connection