AD8538/AD8539
Data Sheet
Rev. B | Page 12 of 24
VSY = 2.7 V or ±1.35 V, AD8538 only, unless otherwise noted.
180
0
06741-
024
INPUT OFFSET VOLTAGE (V)
NUM
BE
R
O
F
AM
P
L
IF
IE
RS
20
40
60
80
100
120
140
160
–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
VSY = 2.7V
0V < VCM < 2.7V
TA = 25°C
Figure 26. AD8538 Input Offset Voltage Distribution
35
0
06741-
025
TCVOS (V/°C)
NUM
BE
R
O
F
AM
P
L
IF
IE
RS
5
10
15
20
25
30
0
0.012
0.024
0.036
0.048
0.060
0.072
0.084
0.096
VSY = 2.7V
–40°C < TA < +125°C
Figure 27. AD8538 Input Offset Voltage Drift Distribution
10
–10
0
2.5
06741-
026
INPUT COMMON-MODE VOLTAGE (V)
IN
P
U
T
OFFS
E
T
V
OLTA
GE
(
V)
–8
–6
–4
–2
0
2
4
6
8
0.5
1.0
1.5
2.0
VSY = 2.7V
TA = 25°C
Figure 28. AD8538 Input Offset Voltage vs. Input Common-Mode Voltage
10000
0.1
0.001
1
06741-
027
LOAD CURRENT (mA)
OU
TP
U
T
S
A
TU
R
A
TION
V
OLTA
GE
(
m
V
)
1
10
100
1000
0.01
0.1
SINK
SOURCE
VSY = 2.7V
TA = 25°C
Figure 29. AD8538 Output Saturation Voltage vs. Load Current
30
0
–40
125
06741-
028
TEMPERATURE (°C)
OU
TP
U
T
S
A
TU
R
A
TION
V
OLTA
GE
(
m
V
)
5
10
15
20
25
–25
–10
5
20
35
50
65
80
95
110
VSY = 2.7V
RL = 10k
VSY = VOH
VOL
Figure 30. AD8538 Output Saturation Voltage vs. Temperature
80
0
1
1000
06741-
029
LOAD CAPACITANCE (pF)
S
M
A
LL
S
IGN
A
L
OV
E
R
S
H
OOT
(
%
)
10
20
30
40
50
60
70
10
100
OS+
OS–
VSY = 2.7V
TA = 25°C
RL = 2k
Figure 31. AD8538 Small Signal Overshoot vs. Load Capacitance