1 Features
• Precision Integrated Shunt Resistor:
– Shunt Resistor: 2 mΩ
– Shunt Resistor Tolerance: 0.1% (Max)
– 15 A Continuous from –40°C to 85°C
– 0°C to 125°C Temperature Coefficient:
10 ppm/°C
• High Accuracy:
– Gain Error (Shunt and Amplifier): 0.3% (Max)
– Offset Current: 50 mA (Max, INA250A2)
• Four Available Gains:
– INA250A1: 200 mV/A
– INA250A2: 500 mV/A
– INA250A3: 800 mV/A
– INA250A4: 2 V/A
• Wide Common-Mode Range: –0.1 V to 36 V
• Specified Operating Temperature: –40°C to 125°C

2 Applications
• Test Equipment
• Power Supplies
• Servers
• Telecom Equipment
• Automotive
• Solar Inverters
• Power Management

3 Description
The INA250 is a voltage-output, current-sensing
amplifier family that integrates an internal
shunt resistor to enable high-accuracy current
measurements at common-mode voltages that can
vary from 0 V to 36 V, independent of the
supply voltage. The device is a bidirectional, lowor
high-side current-shunt monitor that allows an
external reference to be used to measure current
flowing in both directions through the internal currentsensing
resistor sensor. The integration of the
precision current-sensing resistor provides calibration
equivalent measurement accuracy with ultra-low
temperature drift performance and ensures an
optimized Kelvin layout for the sensing resistor is
always obtained.
The INA250 family is available in four output voltage
scales: 200 mV/A, 500 mV/A, 800 mV/A, and 2 V/A.
This device is fully tested and specified for continuous
currents up to 10 amps at the maximum temperature
of 125°C. The INA250 operates from a single 2.7-V
to 36-V supply and draws a maximum of 300 μA of
supply current. All INA250 gain versions are specified
over the extended operating temperature range (–
40°C to 125°C), and are available in a TSSOP-16
package.