Temperature Independent Log Domain Filter

被引：0

作者：

Thanapitak, Surachoke ^{[1
]}

Kirawanich, Phumin ^{[1
]}

Wilairat, Decha ^{[1
]}

Sedtheethorn, Pongsathorn ^{[1
]}

机构：

[1] Mahidol Univ, Fac Engn, Dept Elect Engn, Salaya 73170, Nakhon Pathom, Thailand

来源：

2013 13TH INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES (ISCIT): COMMUNICATION AND INFORMATION TECHNOLOGY FOR NEW LIFE STYLE BEYOND THE CLOUD | 2013年

关键词：

Current reference circuits; Log domain filters; Temperature independence; COMPENSATION;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents the current mode log domain filter based on the Bernoulli cell which has moderately low sensitivity to temperature change. According to the simulation results in a standard 0.18 mu m CMOS process, the sensitivity of the output current over temperature of this log domain circuit is 2.941pA/degrees C. This is archived by using the modified current reference circuit which is directly proportion to temperature as the bias current for the log domain filter circuit. Additionally, this modified current reference circuit can be operated at low power supply voltage (1.11V) while high PSSR (0.43nA/V) is maintained. The power consumption of this modified current reference is in the sub-microwatt range (0.1 mu W).

引用

页码：257 / 260

页数：4

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