Datasheet

AD8665/AD8666/AD8668
Rev. B | Page 7 of 16
Figure 13. Open-Loop Gain and Phase vs. Frequency
Figure 14. Closed-Loop Output Impedance vs. Frequency
Figure 15. Common-Mode Rejection Ratio vs. Frequency
Figure 16. Power Supply Rejection Ratio vs. Frequency
Figure 17. Voltage Noise Density vs. Frequency
Figure 18. 0.1 Hz to 10 Hz Voltage Noise
80
–20
1k 10M
FREQUENCY (Hz)
OPEN-LOOP GAIN (dB)
10k 100k 1M
60
40
20
0
0
225
OPEN-LOOP PHASE SHIFT (Degrees)
45
90
135
180
V
DD
= 16V
R
L
= 2kΩ
C
L
= 10pF
Ф
M
= 73°
GAIN
PHASE
06195-011
1000
0.01
100 10M
FREQUENCY (Hz)
Z
OUT
(Ω)
1k 10k 100k 1M
0.1
1
10
100
A
V
= +100
V
DD
= 16V
A
V
= +1
06195-012
A
V
= +10
120
0
1k 4M
FREQUENCY (Hz)
CMRR (dB)
10k 100k 1M
100
80
60
40
20
V
DD
= 16V
T
A
= 25°C
06195-013
100
0
1k 4M
FREQUENCY (Hz)
PSRR (dB)
10k 100k 1M
80
60
40
20
V
DD
= 16V
T
A
= 25°C
PSRR–
PSRR+
06195-014
100
1
10 10k
FREQUENCY (Hz)
VOLTAGE NOISE DENSITY (nV/√Hz)
100 1k
10
V
DD
= 5V TO 16V
T
A
= 25°C
06195-015
TIME (1s/DIV)
VOLTAGE (1µV/DIV)
V
DD
= 5V TO 16V
T
A
= 25°C
06195-016