Datasheet

AD8615/AD8616/AD8618
Rev. E | Page 7 of 20
1M 10M
100
80
60
40
20
0
–20
–40
–60
–80
–100
GAIN (dB)
225
180
135
90
45
0
–45
–90
–135
–180
–225
PHASE (Degrees)
V
S
= ±2.5V
T
A
= 25°C
Ø
m
= 63°
60M
FREQUENCY (Hz)
04648-012
Figure 12. Open-Loop Gain and Phase vs. Frequency
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
OUTPUT SWIN
G
(
V
p-p)
FREQUENCY (Hz)
10k1k 100k 1M 10M
V
S
= 5.0V
V
IN
= 4.9V p-p
T
A
= 25°C
R
L
= 2kΩ
A
V
= 1
0
4648-013
Figure 13. Closed-Loop Output Voltage Swing vs. Frequency
0
10
20
30
40
50
60
70
80
90
100
OUTPUT IMPEDANCE (Ω)
1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
A
V
= 100 A
V
= 1
A
V
= 10
V
S
=±2.5V
04648-014
Figure 14. Output Impedance vs. Frequency
0
20
40
60
80
100
120
CMRR (dB)
FREQUENCY (Hz)
10k1k 100k 1M 10M
V
S
=±2.5V
04648-015
Figure 15. CMRR vs. Frequency
0
20
40
60
80
100
120
PSRR (dB)
FREQUENCY (Hz)
10k1k 100k 1M 10M
V
S
= ±2.5V
04648-016
Figure 16. PSRR vs. Frequency
5
0
10
15
20
25
30
35
40
45
50
SMALL-SIGN
A
L OVERSHOOT (%)
CAPACITANCE (pF)
10 100 1000
V
S
= 5V
R
L
= ∞
T
A
=25°C
A
V
= 1
+OS
–OS
0
4648-017
Figure 17. Small-Signal Overshoot vs. Load Capacitance