A bipolar linear transconductor using translinear cells and its application

被引：0

作者：

Chung, Won-Sup ^{[1
]}

Kim, Seong-Hoon

Son, Sang-Hee

Kim, Hee-jun

机构：

[1] Chongju Univ, Dept Semicond Engn, Chonju 360764, South Korea

[2] Hanyang Univ, Div Elect Engn & Comp Sci, Ansan 425791, South Korea

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2006年 / E89A卷 / 11期

关键词：

linear transconductor; transconductance amplifier; grounded inductor; IF bandpass filter;

D O I：

10.1093/ietfec/e89-a.11.3341

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A novel linear transconductor using translinear cells is proposed. It consists of a voltage follower, a resistor, and a current follower. SPICE simulations using an 8 GHz bipolar transistor-array parameter show that the linear transconductor with a transconductance of 1 mS exhibits a linearity error of less than +/- 0.75% over an input voltage range of +/- 1 V for a supply voltage of +/- 2.0 V. The temperature coefficient of the transconductance is less than 124ppm/degrees C. The -3-dB frequency of the transconductance is more than 4.5 GHz. Applying the linear transconductor as a building block, the design of a bandpass filter with center frequency of 85 MHz and Q-factor of 80 is presented.

引用

页码：3341 / 3343

页数：3

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