On traditional filters, we usually need a trade off between low-voltage and high dynamic range. The companding filters may solve this problem. This thesis presents a pseudo-exponential third-older low pass filter. All MOSFETs are operated in saturated region to obtain high frequency.
The filter has small chip area and less MOSFETs. The filter has supply voltage of 3V, has cutoff frequency of 3MHz to 10MHz, and 1.06mW power dissipation.
We will first employ Hspice to simulate the log-domain filter to ensure the correctness of the circuit and make it a reliable reference with the circuit layout. After summarizing all the simulations and analyses, the chip has been fabricated with 0.35um CMOS technology.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0724109-165726 |
| Date | 24 July 2009 |
| Creators | Chen, Jia-sheng |
| Contributors | Ko-Chi Kuo, Tzyy-Sheng Horng, Chia-Hsiung Kao |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0724109-165726 |
| Rights | not_available, Copyright information available at source archive |
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