TI introduces family of zero-drift, bi-directional current shunt monitors in SC70 packages

Devices improve accuracy and reduce board space

Dallas, (PresseBox) - Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced a family of high- or low-side measurement, bi-directional current shunt monitor integrated circuits (ICs) in SC70 packages. Utilizing a zero-drift bi-directional architecture, the INA210 family provides outstanding accuracy up to 1 percent over the -40C to +125C temperature range, with 35uV maximum offset. The near elimination of offset with zero-drift reduces the voltage drop and power dissipation in the accompanying shunt resistor by an order of magnitude, which reduces cost and circuit board real estate. The ICs can be used in a wide variety of applications, including servers, telecom equipment, automotive, battery management, computers, power supplies and test equipment.See http://www.ti.com/ina210-pr.

The INA210 family features a common-mode range from -0.3V to +26V, ensuring the ability to sense current, even on shorted power supplies. The inputs withstand differential inputs all the way up to the full common-mode capability. The bi-directional topology includes a reference pin for biasing the quiescent output to suit either unidirectional or bi-directional applications. The product family operates from a single +2.7 to +26 voltage supply. A low 100uA quiescent current minimizes drain in portable applications and enables shutdown by simply removing the power supply. Even with the power off, the shunt inputs withstand the full common-mode voltage.

The product family is available in a choice of five gains to address different application requirements. Tailored for very low drop current sensing are the INA210 (gain of 200), INA211 (gain of 500) and INA212 (gain of 1000). Combining low offsets and gains, the INA213 (gain of 50) and INA214 (gain of 100) are great solutions for wide dynamic range current sensing.

Availability, packaging and pricing

All members of the INA210 family are available now in a SC70-6 package from TI and its authorized distributors. The devices are priced at $0.65 in 1,000-piece quantities (suggested resale price).

TI offers analog engineers a wide-ranging support infrastructure that includes training and seminars, design tools and utilities, technical documentation, evaluation modules, and online KnowledgeBase, a product information hotline and a comprehensive offering of samples that ship within 24 hours of request. For more information on TI's complete analog design support, and to download the latest Amplifier and Data Converter Selection Guide, visit www.ti.com/analogelab.

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