Product Description

The INA219 achieves an error accuracy of 1% over a temperature range of -40C to +85C, with an offset of 100 uV. The high precision combined with the 12-bit resolution helps customers minimize the voltage drop on the shunt resistor, thereby minimizing power loss and consumption and saving board level space. The device can sense the bus voltage range from 0 V to +26 V.

Other important features of the INA219 include:

The programmable calibration register can directly read the current in amperes and the power supply in watts.
Up to 128 samples can be averaged for filtering in noisy environments.
The I2C interface has a timeout setting that not only avoids bus lockout, but also provides a high-speed mode that meets communication requirements up to 3.4 MHz.
All features of the INA219 are software programmable.
It is powered by a single power supply and its operating voltage is between +3.0 and +5.5V.

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