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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fina254″>View Datasheet
Texas Instruments INA254 Zero-Drift Current Sense Amplifier is a voltage-output, current sense amplifier with a 400µΩ integrated shunt resistor. The INA254 monitors bidirectional currents over a wide common-mode range from –4V to +80V, independent of the supply voltage. Three fixed gains are available: 20mV/A, 40mV/A, and 75mV/A. Integrating the precision resistor with a zero-drift chopped amplifier provides calibration equivalent measurement accuracy. It also achieves an ultra-low temperature drift performance of ±45ppm/°C (maximum) and an optimized Kelvin layout for the sensing resistor.
The Texas Instruments INA254 is designed to suppress large (dv/dt) signals with enhanced PWM rejection circuitry, enabling real-time continuous current measurements. The measurements are critical for in-line current measurements in motor-drive and control applications. This device operates from a single 2.7V to 5.5V power supply and draws a maximum of 2.4mA supply current. All gain versions are specified over the extended operating temperature range (–40°C to +125°C) and are available in a 24-pin HTSSOP package.
