AD8628/AD8629
70
300
270
240
210
180
150
120
90
V
C
R
= 2.7V
= 20pF
= 2kΩ
V = 5V
S
S
60
50
40
30
20
10
0
L
L
A
= 1
V
A
A
A
= 100
= 10
= 1
V
A
= 100
V
V
V
A = 10
V
–10
–20
–30
60
30
0
1k
10k
100k
1M
10M
100
1k
10k
100k
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 17. Closed-Loop Gain vs. Frequency at 2.7 V
Figure 20. Output Impedance vs. Frequency at 5 V
70
60
50
40
30
20
10
0
V
C
R
= 5V
= 20pF
= 2kΩ
S
L
L
A
A
= 100
= 10
V
V
= ±1.35V
= 300pF
= ∞
S
C
R
A
L
L
V
V
= 1
A
= 1
V
–10
–20
–30
1k
10k
100k
1M
10M
TIME (4µs/DIV)
FREQUENCY (Hz)
Figure 21. Large Signal Transient Response at 2.7 V
Figure 18. Closed-Loop Gain vs. Frequency at 5 V
300
270
240
210
180
150
120
90
V
= 2.7V
S
A
= 1
V
V
= ±2.5V
= 300pF
= ∞
S
C
R
A
L
L
V
A
= 100
V
= 1
A
= 10
10M
60
30
0
V
100
1k
10k
100k
1M
100M
TIME (5µs/DIV)
FREQUENCY (Hz)
Figure 19. Output Impedance vs. Frequency at 2.7 V
Figure 22. Large Signal Transient Response at 5 V
Rev. C | Page 8 of 20
ADI [ ADI ]
