Performance comparison of continuous-time IFLF and LF low-pass all-pole OTA-C filters

被引：2
|
作者：
Su, HW [1 ]
Sun, Y [1 ]
机构：
[1] Univ Hertfordshire, Fac Engn & Informat Sci, Dept Elect Commun & Elect Engn, Hatfield AL10 9AB, Herts, England
来源：
2000 IEEE ASIA-PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS: ELECTRONIC COMMUNICATION SYSTEMS | 2000年
关键词：
D O I：
10.1109/APCCAS.2000.913486
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
This paper presents the performance comparison of two typical multiple loop feedback all-pole operational transconductance amplifier-capacitor (OTA-C) filters; Inverse-follow-the-leader-feedback (IFLF) and Leapfrog (LF) filters. Two fourth-order structures are analysed and compared in terms of sensitivity, maximum input signal, noise, and OTA nonideality effects on magnitude response. Simulation results obtained show that the LF structure is better than the IFLF structure in these four performances. The comparison is based on the realisation of the fourth-order Butterworth low-pass characteristic with 1 MHz cut-off frequency.
引用
收藏
页码：271 / 274
页数：4
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