TI introduces the highest resolution resistive sensing conditioner, offering performance and precision without compromise

Powerful one-chip solution integrates 24-bit ADCs, 14-bit DAC, programmable core, power management and multiple output interfaces in a small form factor

Bangalore, 24 June 2015 — Texas Instruments (TI) introduced the industry’s highest resolution resistive sensing signal conditioner, enabling fast and precise 24-bit measurement of conditions such as pressure, strain, flow or liquid levels. The PGA900 signal conditioner offers a programmable core, enabling flexible linearization and temperature compensation for numerous resistive bridge sensing applications. For more information about this new resistive sensing conditioner, see www.ti.com/PGA900-pr.

The PGA900 integrates two low-noise 24-bit analog-to-digital converters (ADCs) to enable high-resolution signal acquisition, a 14-bit digital-to-analog converter (DAC) to provide highly linear analog outputs, and a variety of output interfaces, including analog voltage, 4-20 mA current loop, SPI, I²C, UART, and one-wire interface (OWI), to give designers options for different application needs. The PGA900’s integrated power management accepts external power supply voltages from 3.3 V to 30 V.

Key features and benefits of the PGA900 resistive sensing conditioner

• Fast, precise sensor signal and temperature compensation: Integrates two 24-bit ADCs to provide high-resolution signal acquisition. Low-drift voltage reference of 10 ppm/^oC, maximum, enables high accuracy across the -40^oC to 150^oC operating temperature range.
• Integrated 14-bit DAC: Enables highly linear analog outputs.
• User-programmable temperature and nonlinearity compensation algorithms: Integrated ARM® Cortex®-M0 core allows developers to use proprietary temperature and nonlinearity compensation algorithms to differentiate their end products.
• Simple calibration: One-wire interface allows communication, configuration and calibration through the power supply pin without using additional lines.
• Wide input voltage allows direct connection to the power supply: Integrated power management circuitry accepts input voltages ranging from 3.3 V to 30 V to simplify the design and provide reliability.