A high-speed current conveyor based current comparator

被引：21
|
作者：
Chavoshisani, R. [2 ]
Hashemipour, O. [1 ]
机构：
[1] Shahid Beheshti Univ, Dept Elect & Comp Engn, G C Tehran, Iran
[2] Shahid Beheshti Univ, Microelect Lab, G C Tehran, Iran
来源：
MICROELECTRONICS JOURNAL | 2011年 / 42卷 / 01期
关键词：
Current comparator; Current conveyor; Positive feedback;
D O I：
10.1016/j.mejo.2010.09.007
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a new high-speed current mode comparator based on inherent current conveyor and positive feedback properties is presented. This novel approach has resulted in major reduction of the response time and hence a wide band application of the circuit. Simulation results using HSPICE and 0.18 mu m CMOS technology with 1.8 V supply confirms a propagation delay of less than 0.4 ns in the high frequency range of 700 MHz with 158 mu w power dissipation. Under the above conditions, the accuracy of the input current is as low as 50 nA. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：28 / 32
页数：5
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