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首页> 外文期刊>IEEE Journal of Solid-State Circuits >Reference-Less Time-Division Duplex Transceiver IC for a Renal Denervation System
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Reference-Less Time-Division Duplex Transceiver IC for a Renal Denervation System

机译:较少的时分双工收发器IC,用于肾脏剥离系统

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This paper presents the first time-division duplex transceiver integrated circuit (IC) for a 5 Fr (1.6 mm), six-electrode renal denervation (RDN) catheter for treating resistant hypertension. The diameter of the resulting RDN catheter, with each IC encapsulated in a platinum electrode, is 37.5% smaller than those of conventional catheters, enabling minimally invasive surgery with reduced complications. The six electrodes sharing only four electrical wires perform packet communication with an external power control unit for independent operation and deliver the designated radio-frequency (RF) energy to the renal artery wall while measuring the local temperature and impedance. The measured 3 sigma inaccuracy of a bipolar junction transistor (BJT)-based on-chip temperature sensor from 65 degrees C to 75 degrees C is +/- 0.5 degrees C after one-point trimming. Two 500-kHz, 21-V-rms ac signals with +/- 35-V dc potentials are used as power supplies to transfer up to 6-W RF ablation signals with 120-V-pp swing while keeping the maximum dc supply voltages of the ICs less than the breakdown voltage of 70 V. The proposed RDN IC fabricated using a 0.18-mu m high-voltage bipolar, CMOS, LDMOS (HV BCDMOS) occupies an area of 2.1 mm(2).
机译:本文介绍了用于5FR(1.6毫米),六电极肾脏消除(RDN)导管的第一个时分双工收发器集成电路(IC),用于治疗抗性高血压。将所得RDN导管的直径,每个IC封装在铂电极中,比常规导管小37.5%,使得能够减少并发症的微创手术。仅共用四个电线的六个电极与外部功率控制单元进行分组通信,用于独立操作,并在测量局部温度和阻抗的同时将指定的射频(RF)能量传送到肾动脉壁。在单点修剪后,基于65摄氏度的双极连接晶体管(BJT)的3个Σ晶体管(BJT)的3 sigma不准确性在65摄氏度至75摄氏度下是+/- 0.5摄氏度。具有+/- 35-V直流电位的两个500 kHz,21-V-RMS AC信号用作电源,以便在保持最大直流电源电压的同时使用120 V-PP摆动传输高达6-W射频消融信号小于70 V的击穿电压的IC。使用0.18-mu m高压双极,CMOS,LDMOS(HV BCDMOS)制造的所提出的RDN IC占地面积为2.1mm(2)。

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