کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10364446 871674 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An integrated readout circuit for personal dosimetry with phase-shift compensation technique to improve stability
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر سخت افزارها و معماری
پیش نمایش صفحه اول مقاله
An integrated readout circuit for personal dosimetry with phase-shift compensation technique to improve stability
چکیده انگلیسی
In this paper an integrated CMOS readout circuit for a radiation detector in a personal dosimeter is presented. High counting rate and low power requirements make the stability of the conventional high-pass pulse shaper a big problem. A novel phase-shift compensation method is proposed to improve the phase margin. The principle of the compensation circuit and its influence on noise performance are analyzed theoretically. A readout chip with two channels of conventional structure and one channel of the proposed structure has been implemented in a 0.35 μm CMOS technology. It occupies an area of 2.113×0.81 mm2. Measurement results show that the proposed channel can process up to 1 MHz counting rate and provide a conversion gain of about 170 mV/fC at a power dissipation of 330 μW with a 3.3 V power supply. Ac-coupled to a silicon PIN detector, it successfully detects β-rays.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microelectronics Journal - Volume 42, Issue 2, February 2011, Pages 334-340
نویسندگان
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