TI Korea (CEO Kent Chon, www.ti.com/kr) June 29, 2015 – TI (CEO Kent Chon) announced the launch of a resistance sensing signal conditioner with the industry's highest resolution. The new PGA900 signal conditioner measures conditions such as pressure, strain, flow, and water level quickly and precisely in 24-bit. Additionally, it features a programmable core that enables flexible linearization and temperature compensation for a wide range of resistance bridge sensor applications. (For more information on the new resistance sensing conditioner product, please visit www.ti.com/pga900-pr-kr)

The PGA900 enables high-resolution signal acquisition by integrating two low-noise 24-bit analog-to-digital converters (ADCs) and high-linearity analog output by integrating a 14-bit digital-to-analog converter (DAC). In addition, it provides various output interfaces, including analog voltage, 4mA to 20mA current, as well as SPI, I2C, UART, and OWI (one-wire interface), allowing developers to use options suitable for different application requirements. The PGA900 integrates a power management circuit and can accept external power supply voltages ranging from 3.3V to 30V.

Key Features and Advantages of the PGA900 Resistance Sensing Conditioner

· Fast and precise sensor signal and temperature compensation: Integrating two 24-bit ADCs enables high-resolution signals and achieves high accuracy over an operating temperature range of -40°C to 150°C with a low drift voltage reference of up to 10 ppm/°C.

· Integrated 14-bit DAC: High-linearity analog output possible

· User-programmable temperature and non-linearity compensation algorithms: By integrating the ARM® Cortex®-M0 core, developers can create differentiated finished products using proprietary temperature and non-linearity compensation algorithms.

· Simple Calibration: Provides an OWI (one-wire interface) enabling communication, configuration, and calibration via power supply pins without the need for additional lines.

· Direct connection to power supplies with a wide input voltage range: The integration of power management circuitry accommodates an input voltage range of 3.3V to 30V, simplifying the design and providing reliability.

Development tools and support to reduce design time

Developers can use the PGA900 Evaluation Module (EVM) to quickly and easily evaluate the performance and integrated features of a device. The PGA900EVM is available for purchase at the TI store and authorized distributors for $249. You can also download PGA900 example software and user guides, as well as PSpice, TINA-TI Spice, and TINA-TI models from ti.com.

You can find solutions to problems, get help from fellow engineers and TI experts, and share knowledge and solve issues in the pressure sensing forum of the TI E2E™ community.

Package, supply time, and price

The PGA900 resistance sensing conditioner is supplied in a 6mm x 6mm VQFN (very thin quad flat no-lead) package and is currently priced at $4.50 per 1,000-unit quantity.

The PGA900 is a new addition to TI's innovative sensor family that covers temperature, current, light, humidity, proximity, position, motion, and more. More details can be found in TI's complete sensor product portfolio.