One issue facing design engineers is echnology selection. Choosing a device today is more than just an exercise in packaging and pin out, there are often multiple technologies and/or methodologies to choose from. Here is a collection of viewpoints from a group of engineers on how they select tech.
Researchers at TU Delft (Netherlands) and the FOM Foundation for Fundamental Research on Matter have found irrefutable proof that the so-called avalanche effect by electrons occurs in specific, very small semiconducting crystals.
Able to drive 4-wire DC fans and blowers, Control Resources’ SmartFan Cirrus-6 fan speed controller accepts commands from a custom or an I2C interface. The controller handles tach pulses from 6, 12, 24, or 48 VDC fans
Consolidating multiple sensor functions in a single 14-pin LGA ECOPACK SMT package, STMicroelectronics’ FC30 sensor provides 3D orientation as well as click detection to recognize mouse-button controls. Accepting a nominal 2.5V at 0.3 mA, the 3.0 × 5.0 × 0.9-mm device exhibits an accuracy of ±3 degrees with a max acceleration of 10,000 g for 0.1 ms. Features of the RoHS-compliant
Microchip Technology announced the MRF24J40MA FCC-certified Radio-Frequency (RF) transceiver module which services the 2.4 GHz unlicensed Industrial, Scientific and Medical (ISM) short-range wireless frequency band for the IEEE 802.15.4/ZigBee specification or proprietary wireless-protocol
Provided in a BGA package with a footprint 1.1 mm² and a height of 0.5 mm, a family of Hall Effect ICs from ROHM Electronics are presented as the smallest devices of their type (a 1.6 × 1.6 × 0.6-mm package is also available). Features include compensation and push-pull CMOS logic output circuitry , as well as integrated dynamic-offset cancellation.
Giving off even heat to the contents within, Omega Engineering’s DRUM-DHW-55 Series of OMEGALUX drum heaters wrap around a 55-gallon drum and have a built in thermostat calibrated from 10 to 218°C. The spring-and-hook devices are resistant to mechanical damage and attack from many chemical substances. The drum heaters have a built-in electrically electrically-grounded metal screen and
Populated with the NXP LPC3250 microcontroller, the phyCORE-LPC3250 ARM9 based Single Board Computer (SBC) can operate in ultra-low-power mode down to 0.9V. Targeting demanding embedded applications, the 70 × 58-mm device includes power management, an FPU, and SD/SDIO, USB OTG, and Ethernet connectivity
Generating 0.5 to 3.5 Vp-p high amplitude waveforms, the MU181020A-013 Variable Data Output option from Anritsu Company configures with the MP1800A/MT1810A Signal Quality Analyzer/PPG to eliminate the need for an external amplifier
Giving an engineer the ability to monitor and report rotational speed, Orion Fans’ DC fans trigger a 5-V TTL or an “open collector” alarm signal to indicate that they have stopped or slowed significantly. The UL/cUL- and TUV-approved devices have a 2 period-per-revolution square-wave frequency and can
Delivering up to 2,000 W in a 5.5" × 10.7" × 1.6" package, the UFE series of programmable AC/DC front-end power supplies from Emerson Network Power yield a power density as high as 22 W/in³. Up to three supplies can deploy on a single 1U high 19"rack for up to 6 kW of available power, and up to 4 kW of redundant power. The power supplies can also be stacked up to 6U high
Integrating five channels into a single MSOP 8-lead package the CAT885 voltage supervisor, from Catalyst Semiconductor, provides a monitor for the power (Vcc) status of a microprocessor, microcontroller, ASIC or other system processor. Features include, an open-drain output, active-low function with manual reset for system reset and monitoring.
Utilizing a compressed air supply to operate, Vortecs' Vortex A/C not only cools electrical enclosures but also creates a positive cabinet pressure to seal out contaminants, while hot air is expelled through a relief valve. Operating within a range from 27° to 32°C, the device has dual vortex tube cooling units
Suitable for battery management in applications such as server, memory backup and medical equipment, Linear Technologies' LTC4110 offers four operating modes: battery backup, battery charge, “no-loss” battery calibration and shutdown. The device can provide a supply voltage to a system load from a main supply or battery and can also charge a battery, and is capable of supplying voltages above or below the input supply rail
Providing serial, digital, and analog I/O expansions in the front and rear on a 1.75” chassis, Sealevel Systems' Relio R4000 rackmount computer features dual 10/100BaseT Ethernet, two high-speed USB 2.0 ports, four serial ports