INA239AIDGSR

The Texas Instruments INA239AIDGSR is an advanced 16-bit digital power monitor designed for high-precision current, voltage, and power measurements. Operating across a wide common-mode voltage range from -0.3 V to 85 V, this device is suitable for various demanding applications.

Key electrical specifications include a maximum input offset voltage of ±5 µV and an offset drift of ±0.02 µV/°C, ensuring accurate readings even under varying conditions. The gain error is a maximum of ±0.1%, with a gain error drift of ±25 ppm/°C. The device features a 16-bit delta-sigma ADC for high resolution and a power measurement accuracy of 0.2% full scale across its operating temperature range of -40°C to 125°C.

With a 10-MHz SPI communication interface, the INA239AIDGSR facilitates efficient data transfer. It operates from a 2.7-V to 5.5-V supply, consuming a typical operational current of 640 µA. The integrated alert function provides fast response times of 75 µs, enhancing system monitoring capabilities. The device is available in a VSSOP (DGS) package, measuring 3 mm × 4.9 mm.

This power monitor is ideal for applications requiring precise monitoring of power consumption and current flow, such as battery management systems, power supplies, and industrial equipment. Its bidirectional current sensing capability and integrated temperature monitoring further add to its versatility.