By Topic

A tunable gm-C filter with low variation across process, voltage and temperature

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Q. A. Khan ; Semicond. Product Sector, Motorola India Ltd., Gurgaon, India ; S. K. Wadhwa ; K. Misri

A tunable gm-C filter with cutoff frequency insensitive to Process, Voltage and Temperature is proposed. An external clock frequency is used to generate a current using a switched capacitor circuit. The proposed filter is ideally suited for applications where a tight control on cutoff frequency is desired across different operating conditions of the chip. The circuit was designed in 3.3 V BiCMOS technology and simulations were carried out using SPICE. The simulation results show that the total variation in the cutoff frequency is 1% as compared to the 27% variation in conventional gm-C filter over the temperature range of -40 to 120 degC. The variation across process corners is 2.4% and is almost independent of the capacitor variation due to process and temperature.

Published in:

VLSI Design, 2004. Proceedings. 17th International Conference on

Date of Conference:

2004