Asset Details
Do you wish to reserve the book?
A 4.6‐nW, 100‐Hz, 63.88‐dB DR, Second‐Order Subthreshold Gm‐C Filter for Portable Biomedical Applications
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
A 4.6‐nW, 100‐Hz, 63.88‐dB DR, Second‐Order Subthreshold Gm‐C Filter for Portable Biomedical Applications
Do you wish to request the book?
A 4.6‐nW, 100‐Hz, 63.88‐dB DR, Second‐Order Subthreshold Gm‐C Filter for Portable Biomedical Applications
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
A 4.6‐nW, 100‐Hz, 63.88‐dB DR, Second‐Order Subthreshold Gm‐C Filter for Portable Biomedical Applications
2025
Overview
This letter presents a subthreshold second‐order transconductor–capacitor (Gm‐C) low‐pass filter (LPF) for portable biomedical applications. To broaden the range of linear signal processed by the filter, we modified the source–follower biquad and proposed an advanced gm cell based on source‐coupled pair (SCP). The implementation of self‐cascode composite transistors (SC) in the gm cell resulted in a notable enhancement of the filter's linearity and dynamic range (DR) while maintaining a low power consumption level. The circuit simulations using a 55‐nm CMOS process verified that the proposed filter consumes 4.6 nW and contributes input‐referred noise (IRN) of 104 µVrms at a cut‐off frequency of 100 Hz. Furthermore, the LPF attains DR and figure of merit (FoM) values of 63.88 dB and 14.71 fJ, respectively, which is a potential candidate for biomedical applications. In this letter, a 4.6‐nW, 100‐Hz, 63.88‐dB DR, second‐order subthreshold Gm‐C filter has been discussed, and the figure of merit is 14.71 fJ, which is a potential candidate for portable biomedical applications.
