AD8538/AD8539
VSY = 2.7 V or 1.35 V, AD8538 only, unless otherwise noted.
180
10000
1000
100
10
V
= 2.7V
V
T
= 2.7V
= 25°C
SY
SY
0V < V
< 2.7V
A
160
140
120
100
80
CM
T
= 25°C
A
60
SOURCE
SINK
40
1
20
0
0.1
0.001
–10.0–8.4 –6.8 –5.2 –3.6 –2.0 –0.4 1.2 2.8 4.4 6.0 7.6 9.2
0.01
0.1
1
INPUT OFFSET VOLTAGE (µV)
LOAD CURRENT (mA)
Figure 26. AD8538 Input Offset Voltage Distribution
Figure 29. AD8538 Output Saturation Voltage vs. Load Current
35
30
25
20
15
10
5
30
V
R
= 2.7V
= 10kΩ
SY
V
= 2.7V
SY
L
–40°C < T < +125°C
A
25
20
15
10
5
V
= VOH
SY
VOL
0
0
–40 –25 –10
5
20
35
50
65
80
95 110 125
0
0.012 0.024 0.036 0.048 0.060 0.072 0.084 0.096
TCV
(µV/°C)
TEMPERATURE (°C)
OS
Figure 30. AD8538 Output Saturation Voltage vs. Temperature
Figure 27. AD8538 Input Offset Voltage Drift Distribution
80
10
8
V
T
R
= 2.7V
= 25°C
= 2kΩ
V
T
= 2.7V
= 25°C
SY
SY
A
A
70
60
50
40
30
20
10
0
L
6
4
2
0
–2
–4
–6
–8
–10
OS+
OS–
1
1000
0
0.5
1.0
1.5
2.0
2.5
10
100
LOAD CAPACITANCE (pF)
INPUT COMMON-MODE VOLTAGE (V)
Figure 31. AD8538 Small Signal Overshoot vs. Load Capacitance
Figure 28. AD8538 Input Offset Voltage vs. Input Common-Mode Voltage
Rev. A | Page 12 of 24
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