AD8603/AD8607/AD8609
1000
100
80
225
180
V
R
C
= ±0.9V
= 100kΩ
= 20pF
V
T
= 1.8V
= 25°C
S
S
L
L
A
60
40
20
135
90
100
10
Φ = 70°
45
SOURCE
0
–20
–40
–60
–80
0
SINK
–45
–90
–135
–180
–225
1
0.1
0.01
0.001
–100
1k
10k
100k
1M
10M
10
0.01
0.1
LOAD CURRENT (mA)
1
FREQUENCY (Hz)
Figure 33. Open-Loop Gain and Phase vs. Frequency
Figure 30. Output Voltage to Supply Rail vs. Load Current
140
120
100
V
= 1.8V
S
90
80
70
60
50
40
V
= 1.8V
S
100
80
V
– V @ 1mA LOAD
OH
DD
60
40
20
V
@ 1mA LOAD
OL
0
30
20
10
0
–20
–40
–60
100
1k
10k
FREQUENCY (Hz)
100k
–10
–40 –25
5
20
35
50
65 80
95 110 125
TEMPERATURE (°C)
Figure 31. Output Voltage Swing vs. Temperature
Figure 34. CMRR vs. Frequency
60
50
40
30
20
10
0
1.8
1.5
1.2
0.9
0.6
V
= 1.8V
= 25°C
= 1
S
T
A
V
V
= 1.8V
S
A
V
= 1.7V p-p
= 25°C
= 1
IN
T
A
A
V
OS–
0.3
0
OS+
10
100
LOAD CAPACITANCE (pF)
1000
0.01
0.1
1
10
100
FREQUENCY (kHz)
Figure 32. Small Signal Overshoot vs. Load Capacitance
Figure 35. Closed-Loop Output Voltage Swing vs. Frequency
Rev. C | Page 10 of 16