Sensor interface IC enables next-gen intelligent electrochemical sensors

Believed to be the only IC that incorporates potentiostat and electrochemical impedance spectroscopy (EIS) functionality on a single chip, the ADuCM355 has been released by Analog Devices.

The precision analogue microcontroller with bio-sensor and chemical sensor is designed for applications such as industrial gas sensing, instrumentation, vital signs monitoring and disease management. According to the company, it features the industry’s most advanced sensor diagnostics, best-in-class low noise and low power performance, and smallest form factor. Unlike traditional discrete solutions, it does not need multiple ICs to achieve similar performance, for increased reliability and cost savings.

It combines the high performance, low power, small form factor and feature set needed to enable next generation portable gas detectors and to set new benchmarks in reliable gas detection while minimising the cost of ownership, said Jacob Spector, global marketing manager, Portable Gas Detection for Honeywell Industrial Safety.

It has been used by PalmSens for mobile gas detection: “PalmSens is committed to make electrochemistry easier, more portable and more accessible,” said Niels van Velzen, CTO at PalmSens. “ADI’s ADuCM355 is at the heart of the new EmStat Pico, the world’s smallest general purpose electrochemical interface module. EmStat Pico is a hardware and software design platform that allows measurement in minutes and is ideal for the development of portable, wearable and space constrained sensor applications,” he added.

The ADuCM355 low power precision analogue microcontroller is based on the ARM Cortex M3 processor, with 26MHz core, 128kbyte Flash and 64kbyte SRAM. Designed to control and measure chemical and biosensors, it supports dual potentiostat (8.5-micro A, 1.6-microV RMS) and three or more sensor electrodes.  It has a flexible, 16-bit, 400ksamples per second measurement channel.

There are advanced sensor diagnostics and integrated analogue hardware accelerators, integrated into the 72-pin LGA package, measuring 6.0 x 5.0mm.•

The ADuCM355 is sampling now, with production quantities available.

http://www.analog.com

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AC/DC converters meet IoT and smart home power demands

Recom has announced 15 and 20W AC/DC power supplies, designed for low power IoT and household applications. The RAC15-K and RAC20-K series are based on the footprint of the company’s compact RAC10-K modules. The new modules feature high-efficiency over a wide load range and minimal standby power consumption, making them suitable for the always-on applications of the IoT and smart homes.

The RAC15-K and RAC20-K series are PCB-mount AC/DC modules with low energy losses especially in light load conditions. According to the company, based on the latest developments of integrated power, the next level of efficiency has been reached, allowing 20W of power in a modular 2.0 x1.0-inch (50 x 25.4mm) case size.

The RAC15-K and RAC20-K AC/DC converters have a universal mains input range of 85VAC up to 264VAC for worldwide use and come with international safety certifications for industrial, AV and ITE as well as household standards. Both the RAC15-K and RAC20-K are able to operate within a temperature range of -40 to +80 degree C and offer fully protected 5V DC single outputs.

The complete range of single output (5.0 – 48V DC), dual output options (12 and 15V DC) and wired versions will be available in Q3 2018. The modules easily meet EMC class B far below the limits without the need for any external components, says the company. Samples and OEM pricing are available from all authorised distributors or directly from Recom.

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http://www.recom-power.com

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Cypress and Semtech link up to produce two-chip module for smart city applications

Cypress Semiconductor Corp has collaborated with Semtech Corporation on a compact, two-chip LoRaWAN-based module deployed by Onethinx.

The highly integrated Onethinx module suits smart city applications that integrate multiple sensors and are in harsh radio environments. Using Cypress’ PSoC 6 microcontroller’s (MCU) hardware-based secure element functionality and Semtech’s LoRa devices and wireless radio frequency technology (LoRa Technology), the solution enables a multi-layer security architecture that isolates trust anchors for highly protected device-to-cloud connectivity.

In addition, the PSoC 6 MCU’s integrated Bluetooth low energy (BLE) connectivity provides a low-power, out-of-band control channel.

Cypress says the PSoC 6 device is the industry’s lowest power, most flexible Arm Cortex-M dual-core MCU with a power slope down to 22-microA/MHz active power for the Cortex-M4 core. The device is a natural fit with Semtech’s latest LoRa radio chip family, which offers 50 per cent power savings in receive mode and 20 per cent longer range over previous-generation devices.

Security is a primary concern for many smart city applications. The Onethinx module uses the integrated secure element functionality in the PSoC 6 MCU to give each LoRaWAN-based device a secret identity to securely boot, on-board, and deliver data to the cloud application.

Using its mutual authentication capabilities, the PSoC 6 MCU-based, LoRa-equipped device can also receive authenticated over-the-air firmware updates.

Key provisioning and management services are provided by Internet of Things’ security provider and member of the Bosch group, ESCRYPT, for a complete end-to-end, secure LoRaWAN solution.

The module, offered by Cypress partner Onethinx, connects to Bosch Sensortec’s cross domain development kit (XDK) for micro-electromechanical systems (MEMS) sensors and to the provisioning system from ESCRYPT to securely connect.

“With its long range and low power capabilities in a compact footprint, Semtech’s LoRa Technology is ideal for vertical applications,” said Vivek Mohan, director of IoT in Semtech’s Wireless and Sensing Products Group. “Combining LoRa Technology with Cypress’ PSoC 6 MCU in a purpose-built IoT module will accelerate the delivery of leading-edge IoT solutions for smarter cities and a smarter planet.”

“Devices for LoRaWAN networks need to be secure to protect the data they generate and process,” said Jack Ogawa, senior director of marketing for the MCU business unit at Cypress. “We’re excited to work with LoRaWAN ecosystem members to offer developers the unique combination of secure PSoC 6 MCUs and Semtech’s new lower power, longer range LoRa technology to address smart city applications.”

http://www.cypress.com

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15W and 20W AC/DC converters target IoT and smart homes

Recom’s latest 15W and 20W AC/DC power supplies are designed for low power Internet of Things (IoT) and household applications.

Based on the footprint of the compact RAC10-K modules, these new modules feature high-efficiency over a wide load range and minimal standby power consumption.

The RAC15-K and RAC20-K series are PCB-mount AC/DC modules with ultra-low energy losses especially in light load conditions. This suits them to for the always-on and standby mode operations needed for IoT and smart home devices. Based on the latest developments of integrated power, a next level of efficiency has been reached allowing 20W of power in a modular 2 in x 1 in case size.

These AC/DC converters have a universal mains input range of 85VAC up to 264VAC for worldwide use and come with international safety certifications for industrial, AV and ITE as well as household standards.

Both the RAC15-K and RAC20-K operate within a temperature range of -40 degrees C to +80 degrees C and offer fully protected 5VDC single outputs.

The complete range of single output (5 to 48VDC), dual output options (12 and 15VDC) and wired versions will be available in autumn 2018.

According to Recom, these devices easily meet EMC class B far below the limits without the need for any external components.

This news story is brought to you by softei.com, the specialist site dedicated to delivering information about what’s new in the electronics industry, with daily news updates, new products and industry news.         

To stay up-to-date, register to receive our weekly newsletters and keep informed of the latest technology news and new products from around the globe. Simply click this link to register here: softei.com

Readers can also register to receive the monthly newsletter from our sister site, weartechdesign.com. This is the only website dedicated to developers of wearable electronic products. Simply click this link to register: weartechdesign.com

http://www.recompower.com

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About Smart Cities

This news story is brought to you by smartcitieselectronics.com, the specialist site dedicated to delivering information about what’s new in the Smart City Electronics industry, with daily news updates, new products and industry news. To stay up-to-date, register to receive our weekly newsletters and keep yourself informed on the latest technology news and new products from around the globe. Simply click this link to register here: Smart Cities Registration