一个0.8V,14.76nVrms,基于多个复合器的AFE用于使用45纳米CMOS技术的可穿戴设备
Esther Tamilarasan1, Gracia Nirmala Rani Duraisamy1, Muthu Kumaran Elangovan2
1Department of Electronics and Communication, Thigarajar College of Engineering, Madurai 625005, Tamil Nadu, India.
Micromachines
|October 28, 2023
概括
对于可穿戴医疗设备而言,新的基于多重处理器的模拟前端 (AFE) 显著降低了功耗和芯片大小. 这种创新设计提高了使用生物电信号持续健康监测的可靠性.
科学领域:
- 生物医学工程 生物医学工程
- 集成电路设计 集成电路设计
- 可穿戴技术可穿戴技术
背景情况:
- 可穿戴医疗器械 (WMD) 对于持续的健康监测至关重要,但通常会受到高功耗和大尺寸的影响.
- 对于大规模杀伤性武器的传统模拟前端 (AFE) 设计使用了许多组件,导致效率低下.
- 用于测量生物电信号的基于腕带的设备在可靠性,功率和尺寸方面面临挑战.
研究的目的:
- 为大规模杀伤性武器提出一种基于多重处理器 (MUX) 的新型AFE设计.
- 为了减少可穿戴AFE芯片的组件数量,功耗和面积.
- 开发用于生物医学应用的低成本,低功耗和小尺寸的AFE集成芯片.
主要方法:
- 实现了一个单端差分反操作传导放大器 (OTA).
- 设计了一个基于n-pass MUX的AFE电路.
- 在设计和布局中使用了45nm互补金属氧化物半导体 (CMOS) 技术和Cadence Virtuoso.
主要成果:
- 拟议的6T n-pass多通器在100 kHz时获得了-68 dB的增益,功耗为136.5 nW,延迟为0.07 ns.
- 基于MUX的AFE设计布局面积大约为9.8μm2.
- 单端差分器OTA的输入参考噪声为0.014μVrms,增益为-5.5dB,布局面积为2μm2.
结论:
- 与传统设计相比,基于MUX的AFE设计可显著减少组件数量,功耗和面积.
- 这种方法可以开发出更高效,更紧的AFE集成芯片,用于可穿戴生物医学应用.
- 拟议的设计有助于推进可靠且具有成本效益的大规模杀伤性武器,用于日常健康监测.
关键词:
这是一个CMOS系统.节奏 虚拟的 虚拟的模拟前端 (AFE) 是一个模拟前端.模拟多重复处理器模拟多重复处理器运行传导功率放大器的运行传导功率放大器可穿戴医疗器械 (WMD) 是一种可穿戴的医疗器械.更多相关视频
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