Datasheet

AD8605/AD8606/AD8608 Data Sheet
Rev. N | Page 14 of 24
FREQUENCY (Hz)
10k 40M
100k
GAIN (dB)
100
80
–100
60
40
20
0
–20
–40
–60
–80
225
180
–225
135
90
45
0
–45
–90
–135
–180
PHASE (Degrees)
1M
10M
02731-036
V
S
= 2.7V
R
L
= 2kΩ
C
L
= 20pF
Φ
M
= 52.5°
PHASE
GAIN
Figure 37. Open-Loop Gain and Phase vs. Frequency
FREQUENC Y
(Hz)
3.0
2.5
0
1k
10M10k
OUTPUT SWING (V p-p)
100k 1M
2.0
1.5
0.5
1.0
02731-037
V
S
= 2.7V
V
IN
= 2.6V p-p
T
A
= 25°C
R
L
= 2kΩ
A
V
= 1
Figure 38. Closed-Loop Output Voltage Swing vs. Frequency (FPBW)
FREQUENCY (Hz)
100
90
0
1k
100M
10k 100k 1M 10M
80
70
20
60
50
30
10
40
A
V
= 100
A
V
= 10
A
V
= 1
V
S
= 2.7V
02731-038
OUTPUT IMPEDANCE (Ω)
Figure 39. Output Impedance vs. Frequency
CAPACITANCE (pF)
60
50
0
10 1k100
SMALL SIGNAL OVERSHOOT (%)
30
20
10
40
–OS
+OS
V
S
= 2.7V
T
A
= 25°C
A
V
= 1
02731-039
Figure 40. Small Signal Overshoot vs. Load Capacitance
TIME (1s/DIV)
V
S
= 2.7V
VOLTAGE NOISE (1µV/DIV)
02731-040
Figure 41. 0.1 Hz to 10 Hz Input Voltage Noise
TIME (200ns/DIV)
VOLT
AGE (50mV/DIV)
02731-041
V
S
= ±1.35V
R
L
= 10kΩ
C
L
= 200pF
A
V
= 1
Figure 42. Small Signal Transient Response