The INA2180A2IDSGR is a state-of-the-art, dual-channel, current-shunt monitor from Texas Instruments, designed to offer a high level of precision in current measurement for a wide range of applications. This device is part of the INA218x family and is particularly suitable for power management systems that require accurate monitoring of both high-side and low-side current.
With an input common-mode voltage range of -0.2V to +26V, this current-shunt monitor is versatile enough to handle various systems with different voltage requirements. The INA2180A2IDSGR operates over a wide temperature range from -40°C to +125°C, ensuring reliable performance in harsh environments and is available in a compact VSSOP-10 package, making it suitable for space-constrained applications.
The INA2180A2IDSGR features two independent channels with a voltage output, providing a direct, scaled representation of the sensed current. The device boasts an impressive gain error of only 0.1% (max) and a gain drift of 5 ppm/°C (max), ensuring high accuracy and stability over temperature. The integrated common-mode rejection ratio (CMRR) of 120dB (min) at DC allows for accurate measurement in the presence of potential common-mode noise that can be present in complex systems.
This current-shunt monitor is optimized for low power consumption, drawing a quiescent current of only 350 µA per channel, which is ideal for battery-powered and energy-sensitive applications. Moreover, the INA2180A2IDSGR offers a bandwidth of up to 500 kHz, allowing for the monitoring of fast transient currents, which is crucial for power-supply control and protection circuits.
The INA2180A2IDSGR is not only designed for high performance but also for ease of use. It includes a two-wire I2C- and SMBus-compatible interface, which supports the standard, fast, and high-speed modes, enabling straightforward integration into digital systems. With the capability of addressing up to 16 unique I2C addresses, this device is suitable for systems that require multiple current-shunt monitors.
In summary, the INA2180A2IDSGR by Texas Instruments is a robust, precise, and versatile solution for current sensing in modern electronic systems, providing designers with a reliable and efficient tool for power management and monitoring.