Datasheet

Data Sheet AD8538/AD8539
Rev. B | Page 9 of 24
10000
0.01
0.1
1
10
100
1000
0.001 1010.10.01
06741-009
LOAD CURRENT (mA)
OUTPUT SATURATION VOLTAGE (mV)
V
SY
– V
OH
V
SY
= 5V
T
A
= 25°C
SOURCE
SINK
V
OL
Figure 11. AD8538 Output Saturation Voltage vs. Load Current
35
0
5
10
15
20
25
30
–40 –25 –10 5 20 35 50
65 80 95
110 125
06741-010
TEMPER
ATURE (°C)
OUTPUT SATURATION VOLTAGE (mV)
V
SY
–
V
OH
V
SY
= 5V
R
L
= 10kΩ
V
OL
Figure 12. AD8538 Output Saturation Voltage vs. Temperature
60
–20
1k 10k 100k 1M
06741-01
1
FREQUENCY (Hz)
CLOSED-LOOP GAIN (dB)
0
20
40
V
SY
= 5V AND 2.7V
C
L
= 20pF
R
L
= 2kΩ
A
V
= 10
A
V
= 100
A
V
= 1
Figure 13. AD8538 Closed-Loop Gain vs. Frequency
70
–20
–10
0
10
30
40
50
60
20
–45
0
45
90
1k
10k 100k 1M
06741-012
FREQUENCY
(Hz)
OPEN-LOOP GAIN (dB)
OPEN-LOO
P PHASE SHIFT (Degrees)
V
SY
= ±2.5V AND ±1.35V
R
L
= 100kΩ
C
L
= 20pF
135
ФM
Figure 14. AD8538 Open-Loop Gain and Phase vs. Frequency
120
0
100
1M
06741-013
FREQUENC
Y
(Hz)
CMRR (dB)
20
40
60
80
100
1k
10k 100k
V
SY
= 5V
AND 2.7V
T
A
= 25
°
C
Figure 15. AD8538 CMRR vs. Frequency
100
0
100 1M
06741-014
FREQUENCY (Hz)
PSRR (dB)
20
40
60
80
1k 10k 100k
V
SY
= ±2.5V AND ±1.35V
T
A
= 25°C
+PSRR
–PSRR
Figure 16. AD8538 PSRR vs. Frequency