MOS current divider based PGA

被引：4

作者：

Sanz, MT ^{[1
]}

Celma, S ^{[1
]}

Calvo, B ^{[1
]}

Alegre, JP ^{[1
]}

机构：

[1] Univ Zaragoza, Fac Ciencias, Dept Ingn Elect & Comunicac, Area Elect, E-50009 Zaragoza, Spain

来源：

MICROELECTRONICS RELIABILITY | 2005年 / 45卷 / 3-4期

关键词：

D O I：

10.1016/j.microrel.2004.09.008

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：

A highly linear, digitally programmable gain amplifier (PGA) based on an inherently linear MOS current divider (MCD) is presented in this paper. A 3-bit prototype with a total variation range of 36dB in gain has been implemented in a 3.3 V-0.35 mum CMOS process with 2.5 V supply voltage. Experimental results prove the high linearity of the system, which presents distortion levels better than - 70 dB for 1 MHz and 1 Vp-p output signals. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：727 / 732

页数：6

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