TI Korea (CEO Kent Chon, www.ti.com/kr) July 10, 2015 – TI (CEO Kent Chon) announced the launch of the industry's first current sensing amplifier capable of highly accurate measurements over a wide temperature range by integrating a high-precision, low-drift shunt resistor. The new INA250 integrates a bidirectional, zero-drift current sensing amplifier with a shunt resistor, supporting both low-side and high-side implementations. This high accuracy and low drift can reduce the need for designers to perform calibration in many systems. Furthermore, this integration offers greater savings in system cost and board space compared to third-party solutions. (For more information on the INA250 current sensing amplifier, please visit www.ti.com/ina250-pr-kr)

The INA250 current sensing amplifier enables highly accurate measurements with low system costs and a small board footprint, providing higher performance for applications such as test and measurement, communications load monitoring, and power supplies. Test and measurement product designers can achieve the required level of performance and minimize calibration, while also saving up to 76% in costs. Designers of high-performance industrial and telecommunications equipment can perform distributed measurements to maximize system efficiency and improve system management.

Key Features and Advantages of the INA250 Current Sensing Amplifier

· The most accurate integrated solution in the industry

The integrated 2mΩ shunt resistor not only provides a tolerance of 0.1% but also offers low drift of 15ppm/°C from -40oC to 125oC, enabling improved product performance.

o Offset current of 12.5 mA, temperature drift of 250 µA/°C, and gain drift of 30 ppm/°C

o Integrated packaging technology ensures optimized Kelvin connection between IC and register

o Maximum error of 0.75% in the temperature range of -40°C to 125°C

· Up to 76% reduction in system cost and 66% reduction in board space: Integration of shunt registers reduces system cost and board space by up to 76% compared to third-party solutions.

· Low Power Consumption: Consumes up to 300µA of power, minimizing additional system load caused by the measurement method.

Development tools and support to reduce design time

Designers can use the INA250 Evaluation Module (EVM) to quickly and easily evaluate the accuracy of the device. The INA250EVM is available for purchase at the TI store and TI authorized dealers for $49, and the INA250 TINA-TI and TINA-TI Spice models are available for download.

You can find solutions to problems, get help from fellow engineers and TI experts, and share knowledge and solve issues in the TI E2E™ community's current shunt monitor forum.

Package, Price, and Supply Time

The INA250 current sensing amplifier is available in a 5mm x 6.4mm TSSOP (thin-shrink small outline package) package and is priced at $1.40 per 1,000-unit quantity. Three different options are scheduled to be available in the fourth quarter of 2015, allowing developers to optimize the full-scale output voltage based on the target current range.

The INA250 is an innovative current sensing amplifier with the highest levels of power, size, and accuracy, and is TI's newest product. TI's full portfolio of current sensing amplifiers can be found here.