Mouser Electronics, Inc. is now stocking the PGA900 programmable resistive sensing conditioner from Texas Instruments (TI). The PGA900 device is the industry’s highest resolution resistive sensing signal conditioner, enabling fast and precise 24-bit measurement of parameters such as pressure, strain, flow, or liquid levels.
The TI PGA900 sensing conditioner, now available from Mouser Electronics, manipulates its input signals by amplification and digitization through two analog front end channels, each containing a low-noise 24-bit analog-to-digital converter (ADC), to enable high-resolution signal acquisition. The device also includes 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 signal conditioner offers a programmable ARM® Cortex®-M0 core, enabling flexible linearization and temperature compensation for numerous resistive bridge sensing applications. The PGA900 offers integrated power management that accepts external power supply voltages from 3.3 V to 30 V to simplify design. Low-drift voltage reference of 10 ppm/°C (maximum) enables high accuracy across the -40 degrees Celsius to +150 degrees Celsius operating temperature range.
Mouser is also now stocking the TI PGA900EVM evaluation module, which enables designers to quickly and easily evaluate the features of the PGA900 conditioner in either voltage mode or current mode. The PGA900EVM has an onboard resistive bridge with a potentiometer, letting designers adjust differential input voltages to emulate a pressure sense element. The PGA900EVM also includes a 7.5V regulator for one-time programmable (OTP) memory.