Title :
Design of low-power and low-voltage log-domain filters
Author :
Yang, Fuji ; Enz, Christian ; Van Ruymbeke, Gilles
Author_Institution :
Electron. Lab., Swiss Federal Inst. of Technol., Lausanne, Switzerland
Abstract :
This paper describes a component-level mapping between linear- and log-domain filters. A modified multiple input class AB log-integrator with both f- and Q-tuning is presented. A 3rd-order elliptic filter derived from a LC ladder prototype is designed using the proposed log building blocks and including the log-domain implementation of the transmission zero. Simulated frequency responses, THD and SNR, obtained from large signal transient analysis, are given. The filter is designed for a 2 V supply and consumes 1.3 mW for a cutoff frequency of 10 MHz. It can easily be frequency tuned from 1 MHz to 30 MHz
Keywords :
Q-factor; active filters; circuit tuning; elliptic filters; frequency response; linear network synthesis; radiofrequency filters; transient analysis; 1 to 30 MHz; 1.3 mW; 2 V; LC ladder prototype; LV log-domain filters; Q-tuning; SNR; THD; component-level mapping; elliptic filter; frequency responses; frequency tuning; large signal transient analysis; low-power filters; low-voltage filter; multiple input class AB log-integrator; transmission zero; Circuits; Dynamic range; Electronic mail; Energy consumption; Filtering theory; Filters; Frequency; Laboratories; Prototypes; Voltage;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.539822
