Circuit Cellar Newsletter: Analog & Power

ICs for Advanced Bio-Chemical Sensing, Compact Power Supplies for the IoT, Fuel-Gauge ICs Boost Battery Life and a Raffle for Free Stuff!

Inspiring the Evolution of Embedded Design. Weekly E-Newsletter This Week's Focus: Analog & Power Get more with Circuit Cellar magazine! PREVIEW MAGAZINE ○ SUBSCRIBE Circuit Cellar's ongoing mission is to provide important information to help you make smart choices with your engineering projects, from prototype to production. Your feedback is always welcome. - Jeff Child ([email protected]) Sensor Interface IC Enables Advanced Biological and Chemical Sensing Analog Devices (ADI) has announced today a new sensor interface IC that enables the next generation of intelligent electrochemical sensors. According to the company, it is the only solution available to incorporate potentiostat and Electrochemical Impedance Spectroscopy (EIS) functionality on a single chip. The ADuCM355 precision analog microcontroller with bio-sensor and chemical sensor interface is well suited for applications such as industrial gas sensing, instrumentation, vital signs monitoring and disease management. The ADuCM355 is an ultra-low power precision analog microcontroller based on the ARM Cortex M3 processor especially designed to control and measure chemical and biosensors. It is the only solution available that supports dual potentiostat and more than 3 sensor electrodes, according to ADI. CONTINUE READING Preparing for an IoT Edge Project Before starting your IoT edge device development process, it is wise to spend time preparing for your new project. Planning before you start will limit frustration and save you time and money in the long run. Before diving into the task, study the 15 preparation considerations in this white paper. GET THE FREE WHITE PAPER Compact Board-Mount Power Supplies Target IoT Systems XP Power has launched its low-cost VCE03 and VCE10, 3 W and 10 W series of board-mounted AC-DC power supplies with extended universal input range from 85 VAC to 305 VAC, covering all nominal AC inputs from 100 VAC to 277 VAC in a single ultra-compact design. Both the VCE03 and VCE10 provide a complete AC-DC solution with integrated EMC filter and hold-up capacitor, meaning there are no extra external components required. Their small size, high efficiency and low no load input power consumption makes them well suited for IoT applications. The 3 W parts are available in an ultra-compact encapsulated or open-frame SIP package for maximum flexibility and potential cost and space savings. The compact 10 W parts are offered as encapsulated or open-frame DIP's. Their high-active efficiency and low no-load input power of less than 0.3 W make these devices suitable for a wide range of applications supporting environmental initiatives for end equipment. The series offer a wide range of outputs covering 3.3 V, 5 V, 9 V, 12 V, 15 V, 24 V and 48 V with over-load, over-voltage and short circuit protection included. All models are class II, earth-free construction and have 3000 VAC isolation rating with world-wide safety approvals to IEC60950-1 for ITE equipment, IEC/UL/EN62368-1 for ITE and audio-visual equipment and IEC/EN60335-1 for household appliances. The parts comply with EN55032 Level B conducted and radiated emissions. CONTINUE READING Current Issue SEE INSIDE Subscriber Login Learn More About Circuit Cellar Sample Issue Editorial Calendar Shop Archive Magazine Issues Books Subscribe Advertise We can get your message out to the professional engineering community. Contact Hugh Heinsohn today at [email protected]! Stay Connected Fuel-Gauge ICs Maximize Battery Runtimes for Devices Maxim Integrated offers the MAX17260 and MAX17261 ModelGauge m5 EZ fuel gauge ICs that are well suited for a broad range of Li-ion battery powered applications. These battery characterization-free solutions provide high levels of accuracy while also offering small size and ease of design. The MAX17260 and MAX17261, which feature the ModelGauge m5 EZ algorithm, provide a high level of accuracy in fuel gauging. This allows designers to maximize their devices' runtime by preventing premature or sudden device shutdowns, while maintaining a smaller battery size. The fuel gauges, which are housed in an ultra-small 1.5 mm x 1.5 mm package, feature a very low quiescent current of 5.1 µA to minimize draining the battery during long periods of standby time. The products allow designs to be quickly done without battery characterization or calibration. As devices have become more sophisticated with their feature offerings and increasing power density, designers are now challenged with achieving an enhanced user experience without compromising battery runtimes. There is also a huge market need for highly accurate fuel gauges, as less accuracy may introduce uncertainty that must be compensated with higher battery capacity and larger physical dimensions. CONTINUE READING