Very low input impedance low power current mirror

被引：12

作者：

Baghtash, Hassan Faraji ^{[1
]}

Azhari, Seyed Javad ^{[1
]}

机构：

[1] Iran Univ Sci & Technol, Elect & Elect Engn Fac, Elect Res Ctr, Tehran, Iran

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2011年 / 66卷 / 01期

关键词：

Current mirror/source; Low input impedance; Low power; High accurate;

D O I：

10.1007/s10470-010-9480-x

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper a novel low input impedance current mirror/source is proposed. The principle of its operation compared to that of the simple current mirror is discussed. Also are given the comparative simulation results with HSPICE in TSMC 0.18 mu m CMOS which verify the theoretical formulation and operation of the proposed structure. Simulation results show an input resistance for the proposed current mirror about 0.006 a"broken vertical bar. This is 4 x 10(5) times lower than that of the simple one while both working with 1.5 V supply and 50 mu A bias current. It consumes only 161 mu W and exhibits an excellent current error value of Zero at 55 mu A which remains below 0.6% up to 100 mu A. Favorably its minimum output voltage is reduced to 0.2 V.

引用

页码：9 / 18

页数：10

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