×

Please see all COVID-19 updates here as some shipments may be delayed due to CDC safety and staffing guidelines. If you have an order or shipping question please refer to our Customer Support page. For technical questions please check out our Forums. Thank you for your continued support.

Ultra-Precise Current Sense Amplifier - 500 V/V Gain

Added to your shopping cart

Texas Instruments INA290 Ultra-Precise Current Sense Amplifiers can measure voltage drops across shunt resistors over a wide common-mode range from 2.7V to 120V. It is in a highly space-efficient SC-70 package with a PCB footprint of only 2.0mm × 2.1mm. The ultra-precise current measurement accuracy is achieved thanks to the combination of an ultra-low offset voltage of ±12µV (maximum), a small gain error of ±0.1% (maximum), and a high DC CMRR of 160dB (typical). The INA290 is not only designed for DC current measurement but also high-speed applications (like fast overcurrent protection, for example) with high bandwidth of 1MHz (at a gain of 20V/V) and an 85dB AC CMRR (at 50kHz).

The INA290 operates from a single 2.7V to 20V supply and draws a 370µA supply current (typical).

  • Wide common-mode voltage
    • 2.7V to 120V operational voltage
    • −20V to +122V survival voltage
  • Excellent CMRR
    • 160dB DC
    • 85dB AC at 50kHz
  • Accuracy
    • Gain
      • ±0.1% (maximum) gain error
      • ±5ppm/°C (maximum) gain drift
    • Offset
      • ±12µV (maximum) offset voltage
      • ±0.2µV/°C (maximum) offset drift
  • 1.1MHz high bandwidth
  • 2V/µs slew rate
  • 370µA quiescent current

Comments

Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

Customer Reviews

No reviews yet.