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March 2013

Intersil's "DAQ on a Stick" Provides Complete Thermocouple and Strain Gauge Reference Designs Using USB and EFM32 Gecko MCU

milpitas, ca--(marketwire - feb 22, 2013) -  intersil corporation (nasdaq: isil), a leader in the design and manufacture of high-performance analog, mixed-signal and power management semiconductors, will demonstrate new thermocouple and strain gauge designs using a convenient "daq on a stick" at embedded world 2013.

the "daq on a stick" is a reference design highlighting intersil's precision products with different microcontrollers. the reference designs are self-contained demonstrations showing a complete signal chain solution using intersil parts and an energy micro efm32 leopard gecko microcontroller. the complete reference designs are housed in a usb stick form factor. this compact design enables the user to power the application through the usb port and monitor the temperature through the gui interface on a computer.


the solutions feature a variety of intersil ics, including the isl28134 low noise, zero-drift op amp, the isl26102 24-bit delta sigma converter, and the isl21010 precision bandgap voltage reference. the energy micro efm32lg332f128 is an extremely energy efficient 32-bit arm cortex mcu.

the thermocouple application circuit is calibrated at 25°c to within ± 0.1°c using a fluke 54ii thermometer. the accuracy of this design is down to ±0.75% (limits of error).

the software and demonstration videos can be downloaded or viewed from the intersil website (http://www.intersil.com/en/tools/reference-designs/emicro-thermo-reference-design.html) for the thermocouple reference design and (http://www.intersil.com/en/tools/reference-designs/emicro-strain-gauge-reference-design.html) for the strain gauge reference design. the solutions will be provided to customers by avnet memec.

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