SBOT042 may   2023 INA700

 

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Electronics designers and purchasing or procurement managers seek smaller, simpler, and more integrated current-sensing designs. The INA700 digital power monitor with EZShunt™ technology vastly decreases a designer's overall design size and design time. In the past, designers typically needed to purchase multiple ICs, including an analog-to-digital converter (ADC) and a shunt resistor, to achieve the same function.

GUID-BAAB6FF1-2A18-4A65-B9EF-B518DF7D3EDE-low.svg Layout Savings Using INA700

What Does INA700 Provide to a System?

  • The smallest current sensor in the industry with an integrated shunt at 1.24 mm × 1.32 mm, small enough to fit within the footprint of a 1206 shunt resistor and 74% smaller than the INA234 and a 1206 resistor combined
  • Simplified layout and design complexity as Kelvin or 4-wire connections are removed, a technique that reduces measurement error when using traditional current sensors
  • Excellent measurement accuracy:
    • ±0.65% maximum system current sense gain error at 5 A
    • 2.0-mA maximum offset current
    • 250-µA/°C maximum offset drift
  • In discrete current-sensing implementations, the resistor alone contributes an average of 1% tolerance or error, making the measurement accuracy of INA700 excellent before considering the amplifier or signal chain of other discrete components
  • Integration of a shunt resistor shrinks the bill of materials and PCB area required versus traditional current sense devices
  • Active calibration of measurement error due to resistor temperature drift, the INA700 device renders system calibration of a shunt resistor and current sensor unnecessary

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Recommended Parts
Part Number Automotive Qualified Features Maximum Current
at 25°C		 Package
(Dimensions)
INA700 N/A Measures current, bus voltage, power, energy, charge, and die temperature ±15 A PowerWCSP-10
(1.24 mm × 1.32 mm)