Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PACKAGE THERMAL CHARACTERISTICS (Note 1)
SO-EP
Junction-to-Ambient Thermal Resistance (θ
JA
) ...........41°C/W
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
CC
= 5V, V
RS+
= V
RS-
= +14V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, V
SHDN
= V
GND
= 0V, V
REFIN
= V
CC
/2, R
L
= 100kΩ; for MAX9918, A
V
=
90V/V, R2/R1 = 89kΩ/1kΩ; for MAX9920, A
V
= 20V/V, R2/R1 = 79kΩ/1kΩ; T
A
= -40°C to +125°C, unless otherwise noted. Typical val-
ues are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
V
RS+
= V
RS-
=
+14V, V
REFIN
= 0V
MAX9918
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
V
RS+
= V
RS-
=
+14V, V
REFIN
= 0V
Input Offset Voltage (Note 2)
V
OS
MAX9919_
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
V
RS+
= V
RS-
=
+14V, V
REFIN
= 0V
MAX9920
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
T
A
= +25°C
T
A
= -40°C
to +125°C
T
A
= +25°C
T
A
= -40°C
to +125°C
T
A
= +25°C
T
A
= -40°C
to +125°C
T
A
= +25°C
T
A
= -40°C
to +125°C
T
A
= +25°C
T
A
= -40°C
to +125°C
T
A
= +25°C
T
A
= -40°C
to +125°C
±0.10
±0.48
±0.11
±0.18
±0.08
MIN
TYP
±0.14
MAX
±0.4
±0.7
±0.4
±1.3
±0.4
±0.9
±0.4
±1.0
±1.2
±3.0
±0.9
±3.5
mV
UNITS
2
Maxim Integrated
MAX9918/MAX9919/MAX9920
-20V to +75V Input Range, Precision
Uni-/Bidirectional, Current-Sense Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V, V
RS+
= V
RS-
= +14V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, V
SHDN
= V
GND
= 0V, V
REFIN
= V
CC
/2, R
L
= 100kΩ; for MAX9918, A
V
=
90V/V, R2/R1 = 89kΩ/1kΩ; for MAX9920, A
V
= 20V/V, R2/R1 = 79kΩ/1kΩ; T
A
= -40°C to +125°C, unless otherwise noted. Typical val-
ues are at T
A
= +25°C.) (Note 1)
PARAMETERS
SYMBOL
MAX9918
Input Offset Voltage Drift
(Note 3)
V
OSD
MAX9919_
MAX9920
Common-Mode Range
Common-Mode Rejection Ratio
(Note 3)
V
CM
CONDITIONS
V
RS+
= V
RS-
= +14V
V
RS+
= V
RS-
= -2V
V
RS+
= V
RS-
= +14V
V
RS+
= V
RS-
= -2V
V
RS+
= V
RS-
= +14V
V
RS+
= V
RS-
= -2V
-20
80
96
72
86
±175
±250
0
-20V
≤
V
CM
≤
+75V, V
SHDN
= V
CC
= 5V
V
RS+
= V
RS-
= +14V, +75V, V
CC
= 0V
MAX9918,
MAX9919_
Input Resistance
MAX9920
Full-Scale Sense Voltage (Note 4)
V
SENSE
Inferred from gain
error test
MAX9918, MAX9920
Gain (Notes 2, 4)
G
MAX9919F
MAX9919N
Minimum Adjustable Gain
G
ADJ
MAX9918
MAX9920
Common mode
Differential
Common mode
Differential
MAX9918, MAX9919_
MAX9920
300
715
330
224
50
200
Adj
45
90
30
7.5
V/V
V/V
±8
±30
±30
μA
μA
μA
μA
kΩ
Ω
kΩ
Ω
mV
dB
-2V
≤
V
CM
≤
+14V
-20V
≤
V
CM
≤
+75V
-2V
≤
V
CM
≤
+14V
-20V
≤
V
CM
≤
+75V
T
A
= +25°C
T
A
= -40°C to +125°C
MIN
TYP
±1.2
±3.3
±1.8
±1.8
±2.4
±8.8
+75
V
μV/°C
MAX
UNITS
Inferred from CMRR tests
MAX9918, MAX9919
CMRR
MAX9920
Input Bias Current
Input Offset Current
Input Leakage Current in
Shutdown
Input Leakage Current
I
RS+
, I
RS-
(I
RS+
- I
RS-
)
-20V
≤
V
CM
≤
+75V
Maxim Integrated
3
MAX9918/MAX9919/MAX9920
-20V to +75V Input Range, Precision
Uni-/Bidirectional, Current-Sense Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V, V
RS+
= V
RS-
= +14V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, V
SHDN
= V
GND
= 0V, V
REFIN
= V
CC
/2, R
L
= 100kΩ; for MAX9918, A
V
=
90V/V, R2/R1 = 89kΩ/1kΩ; for MAX9920, A
V
= 20V/V, R2/R1 = 79kΩ/1kΩ; T
A
= -40°C to +125°C, unless otherwise noted. Typical val-
ues are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
T
A
= +25°C,
V
REFIN
= 0V
T
A
= -40°C to
+125°C,
V
REFIN
= 0V
T
A
= +25°C
T
A
= -40°C to
+125°C
±0.13
±0.02
MIN
TYP
±0.08
MAX
±0.6
UNITS
V
RS+
= V
RS-
=
+14V
MAX9918
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
±1.2
±0.6
±1.0
±0.45
±1.2
±0.10
±0.45
±0.9
±0.16
±0.6
±1.2
±0.11
±0.6
±1.0
±0.29
±1.0
±1.7
±0.24
±1.0
±1.7
5
15
10
mV
40
10
mV
40
mA
Ω
V
CC
-
1.9
V
V
CC
-
2.4
Maxim Integrated
MAX9919F
Gain Error
(Note 2)
GE
V
RS+
= V
RS-
= T
A
= +25°C
+14V, V
REFIN
= T
A
= -40°C to
0V
+125°C
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
T
A
= +25°C
T
A
= -40°C to
+125°C
%
MAX9919N
V
RS+
= V
RS-
= T
A
= +25°C
+14V, V
REFIN
= T
A
= -40°C to
0V
+125°C
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
T
A
= +25°C
T
A
= -40°C to
+125°C
MAX9920
V
RS+
= V
RS-
= T
A
= +25°C
+14V, V
REFIN
= T
A
= -40°C to
0V
+125°C
V
RS+
= V
RS-
=
-2V, V
REFIN
=
0V
T
A
= +25°C
T
A
= -40°C to
+125°C
FB Input Bias Current
Output-Voltage High (Note 4)
I
FB
MAX9918, MAX9920
R
L
= 100kΩ to GND
R
L
= 10kΩ to GND
R
L
= 100kΩ to V
CC
R
L
= 10kΩ to V
CC
nA
Output-Voltage Low (Note 4)
Short-Circuit Current
Output Resistance
V
SENSE
= 200mV for
MAX9918, MAX9919_,
V
CC
- V
OH
V
SENSE
= 400mV for
MAX9920
V
SENSE
= -200mV for
MAX9918, MAX9919_,
V
OL
V
SENSE
= -400mV for
MAX9920
OUT shorted to V
CC
I
SC
OUT shorted to GND
R
OUT
3
12
3
10
44
41
0.1
V
CC
/2
V
CC
/2
MAX9918, MAX9919_
REFIN Voltage Range
Inferred from REFIN
CMRR test
MAX9920
4
0
0
MAX9918/MAX9919/MAX9920
-20V to +75V Input Range, Precision
Uni-/Bidirectional, Current-Sense Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V, V
RS+
= V
RS-
= +14V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, V
SHDN
= V
GND
= 0V, V
REFIN
= V
CC
/2, R
L
= 100kΩ; for MAX9918, A
V
=
90V/V, R2/R1 = 89kΩ/1kΩ; for MAX9920, A
V
= 20V/V, R2/R1 = 79kΩ/1kΩ; T
A
= -40°C to +125°C, unless otherwise noted. Typical val-
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