Offers Powerful one-chip solution, integrates 24-bit ADCs, 14-bit DAC, programmable core, power management and multiple output interfaces in a small form factor
Texas Instruments 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.
The PGA900 integrates two low-noise 24-bit analogue-to-digital converters (ADCs) to enable high-resolution signal acquisition, a 14-bit digital-to-analogue converter (DAC) to provide highly linear analog outputs, and a variety of output interfaces, including analogue 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 include fast, precise sensor signal and temperature compensation that integrates two 24-bit ADCs to provide high-resolution signal acquisition, integrated 14-bit DAC that enables highly linear analogue 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 that allows communication, configuration and calibration through the power supply pin without using additional lines, wide input voltage allows direct connection to the power supply that Integrate power management circuitry accepts input voltages ranging from 3.3 V to 30 V to simplify the design and provide reliability.
The PGA900 evaluation module (EVM) enables designers to quickly and easily evaluate the device’s performance and integrated features. The PGA900EVM is available from the TI store and authorized distributors for US$249.The PGA900 resistive sensing conditioner comes in a 6-mm-by-6-mm very thin quad flat no-lead (VQFN) package. It is available now, priced at US$4.50 in 1,000-unit quantities.