以電流回授放大器設計之極佳二極體、峰值檢波器

New Supper Diode and Peak Detector applying Current Feedback Amplifier

彭德智(Te-Chih Peng)

指導教授 ： 侯俊禮

中原大學/工學院/電子工程研究所/碩士(2005年)

https://doi.org/10.6840/cycu200500191

摘要

本篇論文用電流回授放大器來呈現極佳二極體、峰值檢波器。電流式放大器組合之極佳二極體有著較大之頻寬，且電流式元件組成之峰值檢波器較一般用運算放大器組成之峰值檢波器有著較低之漂移電壓，亦可偵測較短輸入脈衝時間的訊號。 本文所提及電路中的電阻器及電容器皆與地連接，此特性可使電路積體化更為之容易。並使用HSPICE以UMC 0.5微米的製程參數做電路模擬，得到的結果與理論相符。

關鍵字

電流回授放大器 ； 峰值檢波器 ； 極佳二極體

並列摘要

This paper presents a new super diode and a peak detector configurations use the current feedback amplifier (CFA). Generally, super diode employing operational amplifiers (OPA) just have low bandwidth. The new super diode employing CFA has wider bandwidth than those employing OPA. And the new peak detector that employs CFA has lower drift voltage than those employing OPA, and it also can detect the short duty time of input signal pulse. The proposed circuits employing grounded capacitors and resistors are suitable for integrated circuits. In the development, HSpice simulations applying UMC 0.5um technology process parameters to confirm the proposed circuits in this paper are also given.

並列關鍵字

peak detector ； super diode ； current feedback amplifier

參考文獻

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