http://iet.metastore.ingenta.com
1887

CMOS-based high-order LP and BP filters using biquad functions

CMOS-based high-order LP and BP filters using biquad functions

For access to this article, please select a purchase option:

Buy eFirst article PDF
£12.50
(plus tax if applicable)
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
— Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

This study proposes the complementary metal–oxide–semiconductor (CMOS)-based current-mode high-order active low-pass (LP) and band-pass (BP) filters using biquad functions. The passive RLC Chebyshev ladder filters were used as the prototype, and the mesh- and nodal-analysis methods to derive the biquad functions. The CMOS-based transistor-level biquad circuits were subsequently realised from the biquad functions. The high-order active LP and BP ladder filters were then synthesised from an amalgamation of the biquad circuits. Simulations were carried out to verify the performance and functionality of the LP and BP ladder filters. The results revealed that the proposed ladder filters were operable in the high-frequency range and electronically tunable, given a low-voltage supply of 1 V for the entire circuit. The proposed filters could also achieve the LP frequency response of 300 kHz–30 MHz and BP centre frequency of 200 kHz−20 MHz by means of the bias current (I B) manipulation from 1 to 100 µA. Moreover, the multi-tone simulations were undertaken to assess the filtering performance of the proposed filters and the results are agreeable with the design specifications.

http://iet.metastore.ingenta.com/content/journals/10.1049/iet-cds.2017.0493
Loading

Related content

content/journals/10.1049/iet-cds.2017.0493
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address