Log-domain all pass filter based on integrators

被引：2
作者：
Shah, N. A. [2 ]
Iqbal, S. Z. [3 ]
Parveen, Nusrat [1 ]
机构：
[1] Islamia Coll Sci & Commerce, Dept Elect, Srinagar 190006, Jammu & Kashmir, India
[2] Univ Kashmir, Dept Elect & Instrumentat Technol, Srinagar 190006, Jammu & Kashmir, India
[3] Nawakadal Coll, Dept Phys, Srinagar 190001, Jammu & Kashmir, India
来源：
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2011年 / 67卷 / 01期
关键词：
Log-domain filters; Analog signal processing; All-pass filter;
D O I：
10.1007/s10470-010-9584-3
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A new all-pass (AP) Log-domain filter is presented. The circuit is based on integrator loop and the current sources. The filter circuit has a very simple structure since it uses only bipolar junction transistors (BJT's) and a grounded capacitor. The configuration offers large dynamic range at low power supply and higher frequency operation. The filter has a large bandwidth due to its inherent current-mode (CM) nature and Log-domain properties. Phase angle can be electronically tuned through the bias current. The circuit can be implemented in integrated form. PSPICE simulations are given to confirm the theoretical analysis.
引用
收藏
页码：85 / 88
页数：4
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