Single/Dual/Quad, High-Side Current-Sense
Amplifiers with Internal Gain
MAX4376/MAX4377/MAX4378
ABSOLUTE MAXIMUM RATINGS
V
CC
, RS+, RS- to GND ...........................................-0.3V to +30V
OUT to GND ...............................................-0.3V to (V
CC
+ 0.3V)
Differential Input Voltage (V
RS+
- V
RS-
).................................±8V
Output Short Circuit to V
CC
........................................Continuous
Output Short Circuit to GND .....................................................1s
Current into Any Pin..........................................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
8-Pin µMAX (derate 4.5mW/°C above +70°C) .............362mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C) .........727mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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
RS+
= 0 to 28V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, V
CC
= +3.0V to +28V, R
L
=
∞,
T
A
= T
MIN
to T
MAX,
unless otherwise noted. Typical
values are at T
A
= 25°C.) (Note 1)
PARAMETER
Operating Voltage Range
Common-Mode Input Range
Common-Mode Rejection
Supply Current per Amplifier
Leakage Current
SYMBOL
V
CC
V
CM
CMR
I
CC
I
RS+
, I
RS-
I
RS
+
Input Bias Current
I
RS-
Full-Scale Sense Voltage
V
SENSE
V
SENSE
= 100mV,
V
CC
= 12V, V
RS+
= 12V
V
SENSE
= 100mV,
V
CC
= 12V, T
A
= +25°C
V
SENSE
= 100mV,
V
CC
= 28V, V
RS+
= 28V
Total OUT Voltage Error (Note 2)
I
OUT
≤
2mA
V
SENSE
= 100mV,
V
CC
= 28V, V
RS+
= 28V,
T
A
= +25°C
V
SENSE
= 100mV,
V
CC
= 12V, V
RS+
= 0.1V
V
SENSE
= 6.25mV,
V
CC
= 12V, V
RS+
= 12V
(Note 3)
OUT High Voltage (Note 4)
OUT Low Voltage
(V
CC
- V
OUT
) V
CC
= 3V, I
OUT
= 2mA
V
OL
I
OUT
= 200µA, V
CC
= V
RS+
= 12V,
V
SENSE
= 0V, T
A
= +25°C
±0.5
±0.5
CONDITIONS
Guaranteed by PSR test
Guaranteed by total OUT voltage error test
2V
≤
V
RS+
≤
28V, V
SENSE
= 100mV
V
SENSE
= 5mV, V
RS+
> 2.0V, V
CC
= 12V
V
CC
= 0V, V
RS+
= 28V
V
RS+
> 2.0V
V
RS+
≤
2.0V
V
RS+
> 2.0V
V
RS+
≤
2.0V
0
-400
0
-800
150
±6.75
±3.25
±11
%
MIN
3
0
90
1
2.2
8
60
60
120
120
mV
µA
TYP
MAX
28
28
UNITS
V
V
dB
mA
µA
±5
±9
±32
±7
0.9
25
1.2
40
V
mV
2
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
