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On-chip MCUs fit portable medical apps

Posted: 23 Apr 2009 ?? ?Print Version ?Bookmark and Share

Keywords:microcontroller? on-chip MCU? medical application?

Texas Instruments Inc. has developed the MSP430FG47x ultralow power microcontroller series designed for low-cost medical devices.

The FG47x MCUs offer on-chip integration of the complete signal chain, reducing design complexity and resulting in significant space and cost savings. These devices will help developers improve the quality and accessibility of healthcare through products such as blood glucose meters, digital thermometers, pulse oximeters and blood pressure/heart rate monitors.

The series offers complete signal chain integrated on chip, consisting of two configurable op amps, 12bit DAC, comparator and 16bit ADC, that reduces board space, BOM and time to market. The 16bit Sigma-Delta ADC targets applications that require high-resolution signal conversion while the 128-segment LCD driver with contrast control offers convenient diagnostic display. The series also includes up to 60Kbyte flash and 2Kbyte RAM memory options for easy programmability.

In addition, the MSP430FG47x delivers enhanced portability with ultralow power consumption of the MCUs, extending battery life to 20+ years. The integrated intelligent peripherals on MSP430 MCUs also provide high performance and consume no power when not in operation. Two package options are available to meet various PCB size requirements: 80-pin QFP or 113-ball BGA, which measures only 7.1mm x 7.1mm.

The FG47x devices are the newest addition to TI's broad MCU portfolio for medical applications. TI offers a full-range of embedded processing and complementary analog solutions that help designers create more flexible, affordable and convenient medical devices that improve diagnostics and increase accessibility. The ultralow power consumption of TI's MCU solutions enhances portability for easier monitoring and treatment of chronic conditions.

FG47x MCUs are currently available and start at $5.50 (1,000-unit pricing). They are fully compatible with the $149 MSP-FET430U100 and the $99 MSP-FET430UIF flash emulation tool kits, speeding development and time to market. In addition, the ultra-low power consumption, performance and integration of the FG47x MCUs make the devices suitable for industrial sensors and handheld instrumentation.

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