← 返回 JSSC 论文列表JSSC 2023第10期RF & Wireless0.18 µm BCD
A Wide-Bandwidth Ultrasound Receiver and On-Chip Ultrasound Transmitter for Ultr
本文提出了一种用于超声胶囊内窥镜系统的宽带超声接收器和片上高压发射器，具有高能效和低功耗特性。
RX功耗2.3 mW，采用0.18 µm BCD工艺
超声接收器高压发射器胶囊内窥镜低功耗模拟包络检测
▸采用同步模拟包络检测的新型接收器结构
▸基于正交解调方法的模拟包络检测器
▸乒乓噪声整形SAR ADC以提高分辨率
Abstract
This article presents an ultrasound (US) transceiver
IC including a highly power-efficient US receiver (RX) and a
high-voltage (HV) US transmitter (TX) for US capsule endoscopy
(USCE) systems for the first time. The proposed USCE system
employs the developed IC, a single-element piezoelectric trans-
ducer (PZT), and a mechanically rotating reflector to obtain 360 ◦
transmural scans while traveling through the gastrointestinal (GI)
tract. Since the USCE system operates with a tiny battery, power