← 返回 JSSC 论文列表JSSC 2021第6期RF & Wireless0.18μm
22 A 36-Channel Auto-Calibrated Front-End ASIC for a pMUT-Based Miniaturized 3-D
一款用于微型3D超声系统的36通道自校准前端ASIC，集成发射、接收和ADC功能，功耗低且支持校准。
0.18μm CMOS, 13.2-Vpp脉冲, 1.14-mW/通道平均功耗
ASICpMUT自校准电荷回收动态位共享
▸电荷回收高压发射器（CRHV-TX）减少42.2%峰值功耗
▸动态位共享ADC（DBS-ADC）共享相邻通道的最高有效位
▸模拟前端（AFE）实时自适应增益调整
Abstract
We present an area- and power-efficient application-
specific integrated circuit (ASIC) for a miniaturized 3-D ultra-
sound system. The ASIC is designed to transmit pulse and receive
echo through a 36-channel 2-D piezoelectric Micromachined
Ultrasound Transducer (pMUT) array. The 36-channel ASIC
integrates a transmitter (TX), a receiver (RX), and an analog-to-
digital converter (ADC) within the 250- μm pitch channel while
consuming low-power and supporting calibration to compensate
for the process