可穿戴技术设备的流行起飞

在过去几年中，可穿戴技术市场稳步增长，并没有出现放缓的迹象。
根据CCS Insight1，可穿戴设备市场到2019年可能价值250亿美元。此外，同样的研究显示，智能手表占2015年市场价值的60％，而超过一半的可穿戴设备是健身追踪器。
除了智能手表和健身追踪器，可穿戴设备还包括可穿戴式摄像头以及增强现实和虚拟现实耳机。
预计所有这些设备的扩散将在未来几年内进入可穿戴设备市场。
使可穿戴设备对消费者更具吸引力的关键是使其电池尽可能长时间运行而无需再充电。
您可以拥有最先进技术的产品，但如果您每天必须多次充电，消费者可能会倾向于使用具有更长电池寿命的另一种产品以方便使用。
Maxim的可穿戴产品组件概述
考虑到这一点，重要的是尽可能延长可穿戴产品的电池寿命。
这将为那些寻求长期可用性的消费者提供优势，而这些产品可能具有更多的花俏，但需要更频繁的充电。
一家专注于可穿戴设备市场的公司设计了Maxim Integrated。
他们整合了一系列设备，他们声称这些设备具有最低的功耗和最小的封装（截至2016年9月27日）。
这些组件包括功率调节器（降压/升压/ LDO），运算放大器，比较器，电流检测放大器，电压基准，功率监控IC，温度传感器，低噪声放大器（LNA），模数转换器（ADC），
和数模转换器（DAC）。
让我们快速了解Maxim可穿戴产品组合中的一些组件及其资格：
功率调节器 - 高效率，低噪声开关器件和高精度，低噪声LDO
运算放大器 - 高速，精确，低噪声和低电压操作。
这些运算放大器的高精度和低噪声特性非常适合驱动高分辨率ADC
比较器 - 低成本和小尺寸，这些比较器具有广泛的传播延迟与功率选项，使其成为系统监控或电源电压检查的理想选择
电流检测放大器 - 这些高端和低端电流检测放大器提供低输入电压和宽共模电压，可在宽动态范围内进行精确测量
电压基准 - 这些并联和串联基准IC具有低噪声工作，高初始精度和低漂移随时间和温度的特性，能够驱动高性能24/20/18/16位ADC
电源监控IC  -  ESD保护，低功耗操作和小型封装
ADC  - 具有高分辨率，快速数据速率和低功耗的广泛SAR和sigma-delta ADC选择
DAC  - 产品组合提供低功耗操作，内部参考以及缓冲和无缓冲输出设备
除了低成本，低功耗声称外，Maxim还声称其器件具有优化的功能和低静态电流，所有这些都使其成为增加小型便携式设备电池寿命的理想选择。
Maxim的产品组合确实提供了可穿戴产品设计所需的许多组件。
即使您选择与其他制造商合作，Maxim列表也可作为比较其他来源的零件的绝佳参考。
参考文献：
1  - 到2019年，可穿戴设备市场价值250亿美元



以下为原文

Over the past few years the market for wearable technology has steadily grown and has shown no signs of slowing down. According to CCS Insight1, the wearables market could be worth $25 billion by 2019. Additionally, this same study revealed that smartwatches comprised 60% of the 2015 market value while over half of the wearable shipments were fitness trackers.
In addition to smartwatches and fitness trackers, wearable devices include wearable cameras along with augmented reality and virtual reality headsets. The proliferation of all of these devices is predicted to make inroads into the wearables market over the next few years.
The key to making wearable devices more attractive to consumers is to make their batteries operate as long as possible without requiring a recharge. You could have a product with the most state-of-the-art technology, but if you have to recharge it more than once a day, consumers will probably gravitate towards another product with a longer battery life for convenience.
Maxim’s Wearable Products Components Overview
With this in mind, it is important that a wearable product’s battery life be prolonged to the maximum extent possible. This will give the product an advantage with those consumers looking for longer term usability over a product that may have more bells and whistles but require more frequent recharging.
One company that has designed a variety of components focused towards the wearables market is Maxim Integrated. They have put together a portfolio of devices that they claim offers the lowest power consumption and the smallest packages available (as of 9/27/2016). These components include power regulators (buck/boost/LDO), operational amplifiers, comparators, current sense amplifiers, voltage references, power monitoring ICs, temperature sensors, low-noise amplifiers (LNAs), analog-to-digital converters (ADCs), and digital-to-analog converters (DACs).
Let’s take a quick look at some of the components in Maxim’s wearable product portfolio and their qualifications:

   
• Power Regulators - High efficiency, low-noise switching devices and high-accuracy, low-noise LDOs
• Operational Amplifiers – High-speed, precise, low-noise, and low-voltage operation. The high precision and low-noise aspects of these Op Amps are ideal for driving high resolution ADCs
• Comparators – Low-cost and small size, these comparators have a wide range of propagation delay versus power options making them ideal for system monitoring or supply voltage checks
• Current Sense Amplifiers – These high-side and low-side current-sense amplifiers offer low input voltage and wide common mode voltage for accurate measurements over a wide dynamic range
• Voltage References – These shunt and series reference ICs offer low-noise operation, high initial accuracy and low drift over time and temperature, and are capable of driving high performance 24-/20-/18-/16-bit ADCs
• Power Monitoring ICs – ESD protection, low-power operation, and small packages
• ADCs – Broad selection of SAR and sigma-delta ADCs with high-resolution, fast data-rate, and low power
• DACs – Portfolio offers low-power operation, internal references, and buffered and unbuffered output devices
  

Along with their low-cost, low-power claims, Maxim also states that their parts offer optimized functionality and low quiescent currents, all of which make them ideal for increasing the battery life of small portable devices.
Maxim’s portfolio does offer many of the components necessary for the design of wearable products. Even if you choose to go with another manufacturer, this list of Maxim parts serves as a great reference for comparing parts available from other sources.

References:
1 – Wearables Market to Be Worth $25 Billion by 2019