Design and analysis of folded cascode OTAs using Gm/Id methodology based on flicker noise reduction

被引：28
作者：
Akbari, Meysam [1 ]
Hashemipour, Omid [2 ]
机构：
[1] Shahid Beheshti Univ, Microelect Lab, GC, Tehran, Iran
[2] Shahid Beheshti Univ, Dept Elect & Copmuter Engn, GC, Tehran, Iran
来源：
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2015年 / 83卷 / 03期
关键词：
Flicker noise; Strong inversion; Folded cascode; CMOS amplifier; Design methodology; TRANSCONDUCTANCE; AMPLIFIER; PERFORMANCE;
D O I：
10.1007/s10470-015-0535-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 new methodology for design of folded cascode (FC) and recycling folded cascode (RFC) OTAs based on 1/f noise reduction is presented. With a new formulation for input referred flicker noise based on Gm/Id characteristic in all operation regions significantly enhance of the noise performance is achieved. Also, this technique leads to the larger DC gain and gain-bandwidth, and phase margin degeneration. The amplifiers were simulated in the 0.18 mu m CMOS technology and the simulation results confirm the theoretical analyses. Proposed design methodology exhibits 50 % reduction of input voltage noise @ 1 Hz for RFC compared to the FC amplifier, without increasing the power consumption and silicon area.
引用
收藏
页码：343 / 352
页数：10
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