Datasheet

V+, RS+, RS-, PG .................................................-0.3V to +36V
OUT .............................................................-0.3V to (V+ + 0.3V)
Differential Input Voltage, V
RS+
- V
RS-
..........................±700mV
Current into Any Pin .........................................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
SO (derate 5.88mW/°C above +70°C) ........................471mW
μMAX (derate 4.10mW/°C above +70°C) ...................330mW
Operating Temperature Range
MAX4172E_A ................................................. -40°C to +85°C
MAX4172G_A ............................................... -40°C to +105°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
(V+ = +3V to +32V; V
RS+
, V
RS-
= 0 to 32V; T
A
= T
MIN
to T
MAX
; unless otherwise noted. Typical values are at V+ = +12V,
V
RS+
= 12V, T
A
= +25°C.)
Absolute Maximum Ratings
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
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range V+ 3 32 V
Input Voltage Range V
RS-
0 0 32 V
Supply Current I
V+
I
OUT
= 0mA 0.8 1.6 mA
Input O󰀨set Voltage V
OS
V+ = 12V, V
RS+
= 12V
MAX4172ESA ±0.1 ±0.75
mVMAX4172EUA ±0.2 ±1.6
V
RS+
≤ 2.0V 4
Positive Input Bias Current I
RS+
V
RS+
> 2.0V, I
OUT
= 0mA 0 27 42.5
µA
V
RS+
≤ 2.0V, I
OUT
= 0mA -325 +42.5
Negative Input Bias
Current
I
RS-
V
RS+
> 2.0V 0 50 85
µA
V
RS+
≤ 2.0V -650 85
Maximum V
SENSE
Voltage 150 175 mV
Low-Level Current Error
V
SENSE
= 6.25mV, V+ = 12V,
V
RS+
= 12V (Note 1)
MAX4172ESA ±8.0
µA
MAX4172EUA ±15
Output Current Error
V
SENSE
= 100mV, V+ = 12V,
V
RS+
= 12V
MAX4172ESA,
T
A
= -40°C to 0°C
±20
µA
MAX4172EUA,
T
A
= -40°C to 0°C
±50
MAX4172ESA,
T
A
= 0°C to +105°C
±10
MAX4172EUA,
T
A
= 0°C to +105°C
±15
OUT Power-Supply
Rejection Ratio
ΔI
OUT
/ΔV+ 3V ≤ V+ ≤ 32V, V
RS+
> 2.0V 0.2 μA/V
OUT Common-Mode
Rejection Ratio
ΔI
OUT
/ΔV
RS+
2.0V < V
RS+
< 32V 0.03 μA/V
MAX4172 Low-Cost, Precision, High-Side
Current-Sense Amplier
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