Title :
Digitally tuned Gm-C filter with VDD/temperature-compensating DAC
Author :
Byun, S. ; Laskar, J.
Author_Institution :
MAG Group, Georgia Inst. of Technol., ECE, GA
Abstract :
A digitally tuned Gm-C filter with a VDD/temperature-compensating digital-to-analogue converter (DAC) is presented. By using the proposed DAC, the bandwidth sensitivities to VDD and temperature variations of a Gm-C filter can be decreased without repeated frequency tuning. The measured bandwidth sensitivities are as low as 1.2%/100degC and 1.7%/V for temperature and VDD, respectively
Keywords :
circuit tuning; compensation; digital filters; digital-analogue conversion; DAC; Gm-C filter; digital tuning; digital-to-analogue converter; frequency tuning; temperature variations; temperature-compensating;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20070169
