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INA199 Current-Sense Amp

INA199

Texas Instrumentsic amplifier

INA199 is a bidirectional, zero-drift current-sense amplifier with gains of 50 V/V, 100 V/V, or 200 V/V for measuring shunt resistor drops across common-mode voltages from -0.3V to 26V.

Manufacturer datasheet
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Specifications

8
Operating Voltage
2.7V to 26V
Supply Current
100μA (max)
Interface
Analog
Resolution
Not applicable
Range
-0.3V to 26V (common-mode)
Accuracy
±1% (A and B versions), ±1.5% (C version) %
Temperature Range
-40°C to 125°C
Package
6-Pin SC70, 10-Pin UQFN

Pinout

6
PinNameFunctionsNotes
GNDAnalog Ground
GND
Analog ground for the device.
IN-Analog Input (Negative)
GPIO
Connect to the load side of the shunt resistor.
IN+Analog Input (Positive)
GPIO
Connect to the supply side of the shunt resistor.
OUTAnalog Output
GPIO
Output voltage proportional to the input current.
REFReference Input
GPIO
Reference voltage, 0V to V+
V+Power Supply
POWER
Supply voltage range: 2.7V to 26V.

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