AD8538/AD8539
10000
1000
100
10
70
60
V
= 5V
SY
= 25°C
T
135
A
50
V
– V
V
SY
OH
90
40
30
OL
SOURCE
45
20
ФM
1
10
0
0
SINK
0.1
V
R
C
= ±2.5V AND ±1.35V
= 100kΩ
= 20pF
SY
–10
–20
L
L
–45
1M
0.01
0.001
0.01
0.1
LOAD CURRENT (mA)
1
10
1k
10k
100k
FREQUENCY (Hz)
Figure 11. AD8538 Output Saturation Voltage vs. Load Current
Figure 14. AD8538 Open-Loop Gain and Phase vs. Frequency
120
35
V
R
= 5V
= 10kΩ
V
T
= 5V AND 2.7V
SY
SY
= 25°C
L
A
30
25
20
15
10
5
100
80
60
40
20
0
V
– V
OH
SY
V
OL
0
100
1k
10k
100k
1M
–40 –25 –10
5
20
35
50
65
80
95 110 125
FREQUENCY (Hz)
TEMPERATURE (°C)
Figure 12. AD8538 Output Saturation Voltage vs. Temperature
Figure 15. AD8538 CMRR vs. Frequency
100
80
60
40
20
0
60
V
T
= ±2.5V AND ±1.35V
V
C
R
= 5V AND 2.7V
= 20pF
= 2kΩ
SY
= 25°C
SY
A
L
L
A
A
= 100
= 10
V
V
40
20
+PSRR
–PSRR
A
= 1
V
0
–20
1k
100
1k
10k
FREQUENCY (Hz)
100k
1M
10k
100k
1M
FREQUENCY (Hz)
Figure 16. AD8538 PSRR vs. Frequency
Figure 13. AD8538 Closed-Loop Gain vs. Frequency
Rev. A | Page 9 of 24
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