Datasheet

MAX9918/MAX9919/MAX9920
-20V to +75V Input Range, Precision
Uni-/Bidirectional, Current-Sense Amplifiers
7
Maxim Integrated
Typical Operating Characteristics
(V
CC
= 5V, T
A
= +25°C, unless otherwise noted.)
V
OS
(V
RS+
= +14V)
MAX9918 toc01
OFFSET VOLTAGE (FV)
N (%)
240 320-240-160 -80 0 80 160-320
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0
-400 400
V
OS
DRIFT
(V
RS+
= +14V)
MAX9918 toc02
OFFSET VOLTAGE (FV/°C)
N (%)
3210-1-2-3
0.05
0.10
0.15
0.20
0.25
0.30
0
-4 4
V
OS
(V
RS+
= -2V)
MAX9918 toc03
OFFSET VOLTAGE (FV)
N (%)
320240160800-80-160-240-320
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0
-400 400
V
OS
DRIFT
(V
RS+
= -2V)
MAX9918 toc04
OFFSET VOLTAGE (FV/°C)
N (%)
846-6 -4 -2 0 2-8
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0
-10 10
V
OS
vs. V
CM
MAX9918 toc05
V
CM
(V)
V
OS
(uV)
706040 500 10 20 30-10
-400
-300
-200
-100
0
100
200
300
400
500
-500
-20 80
T
A
= -40°C
T
A
= +25°C
MAX9918ASA
V
CC
= 5V
V
REF
= V
GND
T
A
= +125°C
V
OS
vs. V
CC
MAX9918 toc06
V
CC
(V)
VOS (FV)
5.45.35.1 5.24.7 4.8 4.9 5.04.6
-75
-50
-25
0
25
50
75
100
125
-100
4.5 5.5
MAX9918ASA
V
CC
= 5V
V
REF
= V
GND
V
CM
= -2V
V
CM
= 14V
0 0.1 0.2 0.3-0.4 -0.3 -0.2 -0.1
0.4
GAIN ERROR
(V
RS+
= +14V, MAX9919F, A
V
= +45V/V)
MAX9918 toc07
GAIN ERROR (%)
N (%)
0.1
0.2
0.3
0.4
0.5
0.6
0
0 0.1 0.2 0.3-0.4 -0.3 -0.2 -0.1 0.4
GAIN ERROR (%)
MAX9918 toc08
N (%)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0
GAIN ERROR
(V
RS+
= +14V, MAX9919N, A
V
= +90V/V)
0 0.1 0.2 0.3-0.4 -0.3 -0.2 -0.1 0.4
GAIN ERROR
(V
RS+
= -2V, MAX9919F, A
V
= +45V/V)
MAX9918 toc09
GAIN ERROR (%)
N (%)
0.1
0.2
0.3
0.4
0.5
0.6
0