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EETE DEC 2014

Get started with FPGA design This month, Arrow Electronics is giving away ten BeMicro Max 10 FPGA evaluation boards together with an integrated Reader O f f er USB-Blaster, each package worth 90 Euros, for EETimes Europe’s readers to win. Designed to get you started with using an FPGA, the BeMicro Max 10 adopts Altera’s nonvolatile MAX 10 FPGA built on 55-nm flash process. The MAX 10 FPGAs are claimed to revolutionize non-volatile integration by delivering advanced processing capabilities in a low-cost, instanton, small form factor programmable logic device. The devices also include full-featured FPGA capabilities such as digital signal processing, analog functionality, Nios II embedded processor support and memory controllers. The BeMicro Max 10 includes a variety of peripherals connected to the FPGA device, such as 8MB SDRAM, accelerometer, digital-to-analog converter (DAC), temperature sensor, thermal resistor, photo resistor, LEDs, pushbuttons and several different options for expansion connectivity. Two 40-pin prototyping headers allow for further design expansion. Check the reader offer online at www.electronics-eetimes.com Classic op-amp adds programmability Diodes Inc. has introduced its own variant of the TLC271 programmable op-amp, with a bias-select mode, enabling closer matching of power dissipation and AC performance with the specific requirements of battery-powered consumer and industrial products. To help extend battery cell life, its low-bias mode helps reduce power dissipation, while medium and high bias modes progressively increase op-amp AC performance. Bias modes can also be dynamically changed, allowing the device to idle in power-saving mode then switch to a defined high-performance mode in response to application demand. Diodes Incorporated is accompanying the release of its own SO-8 packaged TLC271 with a companion part, the TLC271L. This fixed-metal mask option has the bias-select pin removed and operates continuously in power-saving, low-bias mode. By reducing supply currents down to 10 μA and operating at a 3V supply voltage, the TLC271 is suitable for a wide range of Li+ battery and energy-efficient MCU supplies. This op-amp provides an optimised output range for low voltage applications by featuring a full rail-to-rail output swing of up to 16V. With typical high input impedance and low bias currents, combined with common-mode and supply-voltage rejection, this is a drop-in replacement part in both commercial temperature (0 to +70ºC) and industrial temperature (-40ºC to +125ºC) grades. Diodes www.diodes.com Wide-voltage range, low-power temperature sensors Atmel has a family of high-precision digital temperature sensors with the widest Vcc range from 1.7V to 5.5V. The new family delivers higher temperature accuracy and faster I²C bus communication speeds, and are available with integrated nonvolatile registers and serial EEPROM memory for consumer, industrial, computer, and medical applications. Inventory of one device covers all Vcc requirements in a variety of applications. Currently, Atmel says, digital temperature sensors on the market are available with a very limited Vcc range requiring users to purchase multiple temperature sensors. The new family also delivers a higher accuracy rate at ±0.5°C accuracy (typical) across the 0°C to +85°C temperature range, across the entire wide voltage range (1.7V to 5.5V). The low voltage operation of the devices also reduce the overall power consumption. The new family also delivers a faster I²C bus communication with speeds of up to 1 MHz, increasing the data throughput for both temperature sensor operations and for devices with integrated Serial EEPROM. The sensor family includes six high-precision, digital temperature sensors based on the industry-standard LM75 functionality offered by a number of vendors. All the devices accurately measure and monitor temperature to address the thermal monitoring requirements for a wide variety of applications and are highly configurable. They include devices with serial EEPROM memory from 2k-, 4k- or 8k-bits to store system parameters and user preference data. Atmel www.atmel.com 32-bit PICs have wide peripheral menu and scalable memory Microchip’s low cost PIC32MX1/2/5 32-bit MCUs are applicable to applications, including digital audio, Bluetooth, industrial connectivity, USB and general-purpose embedded control at lower prices. By blending features of Microchip’s existing PIC32MX1/2 and PIC32MX5 MCU families, this latest PIC32MX1/2/5 MCU series offers a rich peripheral set for a wide range of cost-sensitive applications that require complex code and higher feature integration at a lower cost. With up to 83 DMIPS performance and large, scalable memory options from 64/8 kB to 512/64 kB (flash/RAM), these PICs are suited to Bluetooth audio software required for low-cost Bluetooth audio applications, such as speakers, consumer music-player docks, noise-cancelling headsets and clock radios. Flexible CAN2.0B controllers are also integrated, with DeviceNet addressing support and programmable bit rates up to 1 Mbps, along with system RAM for storing up to 1024 messages in 32 buffers. This feature allows designers to easily employ CAN communication schemes for industrial and automotive applications. The series has features including four SPI/I2S interfaces for audio processing and playback, a Parallel Master Port (PMP) and capacitive touch sensing hardware for graphics and touch-sensing interfaces; a 10-bit, 1 Msample/sec, 48-channel ADC; as well as a full-speed USB 2.0 Device/Host/OTG peripheral. Microchip www.microchip.com 46 Electronic Engineering Times Europe December 2014 www.electronics-eetimes.com


EETE DEC 2014
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