Design of large time constant switched-capacitor filters for biomedical applications
| dc.contributor | Silva-Martinez, Jose | |
| dc.creator | Tumati, Sanjay | |
| dc.date.accessioned | 2005-02-17T21:02:38Z | |
| dc.date.accessioned | 2017-04-07T19:49:35Z | |
| dc.date.available | 2005-02-17T21:02:38Z | |
| dc.date.available | 2017-04-07T19:49:35Z | |
| dc.date.created | 2004-12 | |
| dc.date.issued | 2005-02-17 | |
| dc.description.abstract | This thesis investigates the various techniques to achieve large time constants and the ultimate limitations therein. A novel circuit technique for the realization of large time constants for high pass corners in switched-capacitor filters is also proposed and compared with existing techniques. The switched-capacitor technique is insensitive to parasitic capacitances and is area efficient and it requires only two clock phases. The circuit is used to build a typical switched-capacitor front end with a gain of 10. The low pass corner is fixed at 200 Hz. The high pass corner is varied from 0.159Hz to 4 Hz and various performance parameters, such as power consumption, silicon area etc., are compared with conventional techniques and the advantages and disadvantages of each technique are demonstrated. The front-ends are fully differential and are chopper stabilized to protect against DC offsets and 1/f noise. The front-end is implemented in AMI0.6um technology with a supply voltage of 1.6V and all transistors operate in weak inversion with currents in the range of tens of nano-amperes. | |
| dc.identifier.uri | http://hdl.handle.net/1969.1/1479 | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.subject | Switched-Capacitor | |
| dc.subject | SC | |
| dc.subject | CMOS | |
| dc.subject | weak inversion | |
| dc.subject | Large Time Constant | |
| dc.title | Design of large time constant switched-capacitor filters for biomedical applications | |
| dc.type | Book | |
| dc.type | Thesis |