INA250A4
INA250A4 is Zero-Drift Current-Shunt Monitor manufactured by Texas Instruments.
- Part of the INA250A1 comparator family.
- Part of the INA250A1 comparator family.
ures
- 1 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 m A (Max, INA250A2)
- Four Available Gains:
- INA250A1: 200 m V/A
- INA250A2: 500 m V/A
- INA250A3: 800 m V/A
- INA250A4: 2 V/A
- Wide mon-Mode Range:
- 0.1 V to 36 V
- Specified Operating Temperature:
- 40°C to 125°C
2 Applications
- Test Equipment
- Power Supplies
- Servers
- Tele 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 mon-mode voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, low- or highside current-shunt monitor that allows an external reference to be used to measure current flowing in both directions through the internal current-sensing 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 m V/A, 500 m V/A, 800 m V/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...
