Operating Temperature Range ......................... -40°C to +125°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) ................................. +300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a 4-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
*Junction temperature rating due to power dissipation must also be observed.
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.
(V
CC
= 5V, V
BAT
= V
RS+
= 12V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, R
RSP
= R
RSN
= 500Ω, R
OUT
= 10kΩ, T
A
= -40°C to +125°C. Typical
values are at T
A
= +25°C, unless otherwise noted. See the
Typical Application Circuit.)
(Note 2)
PARAMETER
DC CHARACTERISTICS
Input Common-Mode Voltage
Range
Supply Voltage Range
Input Offset Voltage (Note 3)
Common-Mode Rejection
Ratio
Power-Supply Rejection Ratio
Quiescent Supply Current
Input Bias Current (Note 4)
Input Bias Current
Mismatch
Input Current in Shutdown
Voltage Gain
Voltage Gain Error (Notes 3, 5)
V
RSP
,
V
RSN
V
CC
V
OS
CMRR
PSRR
I
CC
I
B+
, I
B-
Inferred from CMRR test
Inferred from PSRR test
T
A
= +25°C
T
A
= -40°C to +125°C
V
BAT
= +4V to +28V
V
CC
= +2.7V to +5.5V
V
CC
= 5V
T
A
= +25°C
T
A
= -40°C to +125°C
2 x (I
B+
- I
B-
)/(I
B+
+ I
B-
)
T
A
= +25°C, V
CC
= 0V
T
A
= -40°C to +125°C, V
CC
= 0V
Gain = R
OUT
/R
RSP
T
A
= +25°C
T
A
= -40°C to +125°C
20
±0.2
±1.5
±2.0
T
A
= +25°C
T
A
= -40°C to
+125°C
0.01
0.8
0.65
±1
T
A
= +25°C
T
A
= +125°C
100
90
90
120
20
2
55
5.6
6.5
±12
±15
1
10
120
4
2.7
±0.3
28
5.5
±1.2
±1.6
V
V
mV
dB
dB
µA
µA
%
%
µA
V/V
%
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Electrical Characteristics
∆I
B
/I
B
I
RSP
+
I
RSN
www.maximintegrated.com
Maxim Integrated
│
2
MAX9937
Current-Sense Amplifier with
Reverse-Battery Protection
Electrical Characteristics (continued)
(V
CC
= 5V, V
BAT
= V
RS+
= 12V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, R
RSP
= R
RSN
= 500Ω, R
OUT
= 10kΩ, T
A
= -40°C to +125°C. Typical
values are at T
A
= +25°C, unless otherwise noted. See the
Typical Application Circuit.)
(Note 2)
PARAMETER
Maximum Output Current
Output-Voltage Compliance
(Note 6)
SYMBOL
I
OUT
CONDITIONS
R
RSN
= 500Ω, R
RSP
= 0, V
OUT
= 0V
V
SENSE
= 500mV, ∆I
OUT
≤ 1%
V
BAT
= 4V, V
SENSE
= 0.1V, ∆I
OUT
≤ 2%
V
OH
V
OL
BW
t
S
e
n
I
n
f = 1kHz
f = 1kHz
V
BAT
= 4V, V
SENSE
= +500mV,
V
OH
= V
BAT
- V
OUT
V
BAT
= 4V, V
SENSE
= -100mV
V
SENSE
= 137.5mV
DC
+ 225mV
P-P
MIN
2
-0.1
-0.1
TYP
7.5
MAX
22
V
CC
+
0.1
V
RSP
- V
RSP
-
0.15
0.8
0.4
2
250
350
5
28
1
1.2
20
UNITS
mA
V
Output-Voltage High
Output-Voltage Low
AC CHARACTERISTICS
3dB Large-Signal Bandwidth
3dB Small-Signal Bandwidth
Settling Time to 1%
Input-Voltage Noise
Input Current Noise
V
mV
kHz
kHz
µs
nV/√Hz
pA/√Hz
Note 2:
All devices are 100% production tested at T
A
= +25°C. Temperature limits are guaranteed by design.
Note 3:
Gain and offset voltage are calculated based on two point measurements: V
SENSE1
= 5mV and V
SENSE2
= 200mV.
Note 4:
Input bias current I
B+
and I
B-
refers to the internal op amp’s inputs (inverting and noninverting) so that I
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