Developing low-power IoT systems for wearable sensors devices

Nandbox Inc.正在为报文传送通信平台和物联网(IoT)应用提供创新技术，专注于隐私、安全以及企业到个人/机器通信的更大分组。该公司的路线图包括开发一套完整的物联网模块，应用于家庭自动化和使用Nandbox通信报文传送平台的可穿戴设备。这些物联网设备需要通过模数转换器(ADC)与传感器接口，这对包括极高分辨率和超低功耗在内的严格规格要求很高。为了实现超低的功耗和成本，需要将所有模拟前端电路和数字后端信号处理都在一块硅片上实现的片上系统(SoC)概念。由于物联网在SoC中实现高分辨率ADC的复杂性，Nandbox需要帮助研究和开发这种超低功耗高分辨率ADC，以用于他们未来的物联网产品。本研究项目的目的是研究和设计一种适用于物联网应用的超低功耗高分辨率ADC的新体系结构。这些目标包括研究适合物联网应用的现有可用体系结构，并提供适合Nandbox规范的最佳体系结构的全面研究。提出了一种新的ADC结构，克服了在面向数字的SoC技术中实现模拟和混合信号电路的挑战。采用CMOS工艺在ADC的电路级和版图级进行设计和实现。制作并测试ADC以验证其性能。

nandbox Inc. is delivering innovative technologies for messaging communication platform and Internet ofThings (IoT) applications with focus on privacy, security, and bigger grouping for business toindividual/machine communications.The company roadmap includes development of a complete set of IoT modules applied to home automationand wearable devices using nandbox communication messaging platform. These IoT devices need to interfacewith sensors via analog-to-digital converter (ADC) device that requires stringent specifications including veryhigh resolution and ultra-low power. For an ultra-lower power and cost, it is necessary to use thesystem-on-chip (SoC) concept where all the analog front-end circuits and digital backend signal processing areimplemented into a single silicon chip.Due to the complexity of implementing high resolution ADC in SoC for their IoT, nandbox needs assistance tostudy and develop this ultra-low power high resolution ADC for their future IoT products.The objective of this research project is to study and design a new architecture for high resolution ADC withultra-low power performance less than 100 micro-Watts for IoT applications. These objectives includeresearching the existent available architectures suitable for IoT applications and deliver a comprehensive studyon the best architectures suitable for nandbox specifications. Propose a new ADC architecture that overcomesthe challenges of implementing analog and mixed signal circuits in digital oriented SoC technology. Designand implement at the circuit and the layout levels of the ADC using CMOS technology. Fabricate and test theADC to validate the performance.