New-Tech Europe Magazine | January 2019

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IoT Computers Components Computers Electro Optic & Camera Packaging & Production Motion Automotive New Products “Maxim is continuing to deliver precedent-setting innovations in the wearable healthcare arena. Our new MAX20345 extends our portfolio of ultra-low-power PMICs for wearable and always-on applications, bringing to the market a solution that enables the highest sensitivity optical sensing in wrist-worn form factors for more accurate vital-sign measurements,” said Frank Dowling, director of business management, Industrial & Healthcare Business Unit, at Maxim Integrated. Availability and Pricing The MAX20345 is available at Maxim’s website for $4.45 (1000-up, FOB USA) and is also available from authorized distributors The MAX20345EVKIT# evaluation kit is available for $57.00

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buck-boost regulator based on an innovative architecture that’s optimized for highly accurate heart-rate, blood- oxygen (SpO2) and other optical measurements. The regulator delivers the desired low-quiescent-current performance without the drawbacks that degrade SNR and, as a result, can increase performance by up to 7dB (depending on measurement conditions). The MAX20345 is also the latest in a line of ultra-low- power PMICs for small wearables and IoT devices that help raise efficiency without sacrificing battery runtime. To meet these needs, the MAX20345 integrates a lithium- ion battery charger; six voltage regulators, each with ultra-low quiescent current; three nanoPower bucks (900nA typical) and three LDO regulators with ultra-low quiescent current (as low as 550nA typical). Two load switches allow disconnecting of system peripherals to minimize battery drain. Both the buck-boost and the bucks support dynamic voltage scaling (DVS), providing additional power-saving opportunities when lower voltages can be deployed under favorable conditions. The MAX20345 is available in a 56-bump, 0.4mm pitch, 3.37mm x 3.05mm wafer-level package (WLP). Key Advantages Superior Performance for Optical Systems: the integrated buck-boost regulator provides the low ripple at high frequency that will not interfere with optical measurements. These short settling times support the high-sensitivity optical-sensor measurements on wearables. Extended Battery Life: regulators with nanoPower quiescent current reduce sleep and standby power, which in turn extends battery runtime and allows for smaller battery size. High-efficiency regulators preserve battery energy during active states. Small Footprint: by eliminating multiple discrete components, the MAX20345 provides a sophisticated power architecture for space-constrained wearable and IoT designs. Commentary “With sales of fitness and wellness wearable electronics expected to rise to over 114 million units by 2020, there is increasing demand for better, more precise sensing technology for measuring health vitals including heart rate and blood-oxygen levels,” said Kevin Anderson, senior analyst for power semiconductors at IHS Markit.

ams introduces world’s smallest 1D time- of-flight sensor for accurate proximity sensing and distance measurement in smartphones ams, a leading worldwide supplier of high performance sensor solutions, introduces the world’s smallest integrated 1D time-of-flight distance measurement and proximity sensing module. The sensor is ideal for implementing presence detection, for example to trigger the operation of a facial recognition system when the user’s face is in range. Supplied in a 2.2mm x 3.6mm x 1.0mm package, the new TMF8701 sensor fits in a narrow bezel, helping smartphone manufacturers to realize widescreen phone designs that have a high display screen to body ratio. “Smartphone manufacturers have been clear about the drawbacks of today’s 1D time-of-flight sensors: they are too large, and their performance degrades noticeably in adverse lighting conditions and when the display screen is dirty,” said Dave Moon, Senior Product

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