Datasheet

AD8500
Rev. B | Page 11 of 12
OPEN-LOOP GAIN (dB)
PHASE MARGIN (Degrees)
FREQUENCY (Hz)
–80
–60
–40
–20
0
20
40
60
80
30
0
–30
–60
–90
–120
60
90
120
10 100 1k 10k 100k
06005-032
V
S
= 1.8V
PHASE
GAIN
Figure 32. Open-Loop Gain and Phase vs. Frequency
100
90
80
70
60
50
40
30
20
10
0
0.01 0.1 1 10 100
CMRR (dB)
FREQUENCY (kHz)
06005-033
V
S
= 1.8V
Figure 33. CMRR vs. Frequency
35
30
25
20
15
10
5
0
10 100 1000
OVERSHOOT (%)
LOAD CAPACITANCE (pF)
OS–
OS+
06005-034
V
S
= 1.8V
Figure 34. Small Signal Overshoot vs. Load Capacitance
0.20
0.15
–0.15
0.10
–0.10
0.05
–0.05
0
–0.20
–0.0005 0 0.0005 0.0010 0.0015
VOLTAGE (V)
TIME (Seconds)
06005-035
V
S
= 1.8V
NO LOAD
Figure 35. Small Signal Transient Response
0.20
0.15
–0.15
0.10
–0.10
0.05
–0.05
0
–0.20
0 0.0005 0.0010 0.0015
VOLTAGE (V)
TIME (Seconds)
0
6005-036
–0.0005
V
S
= 1.8V
C
L
= 100pF
Figure 36. Small Signal Transient Response
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0
0.2
–0.002 –0.001 0 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008
VOLTAGE (V)
TIME (Seconds)
06005-037
V
S
= 1.8V
NO LOAD
Figure 37. Large Signal Transient Response