Operational Transconductance Amplifiers (OTAs) with high linearity and wide input range characteristics have become a focus of interest for analog continuous-time circuits. In this research, we intend to develop a low distortion, wide swing CMOS OTA.
The supply voltage is 5V. Simulation results show that the OTA is linear, tunable and wide swing. The transconductance can be tuned from 23£gA/V to 37£gA/V. When a 3VPP input signal with 1MHz is applied, THD of the OTA is 51dB.
The OTA is used to realize a 1-MHz 7th-order Butterworth lowpass filter. When a 1VPP input signal with 100KHz is applied, THD of the lowpass filter is 50dB. All the circuits are designed based on the UMC 0.5£gm 2p2m CMOS process technology.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0723103-161925 |
| Date | 23 July 2003 |
| Creators | Kuo, Chi-Hong |
| Contributors | Yao-Tsong Tsai, Shyh-Jye Jou, Jinn-Shyan Wang, Chia-Hsiung Kao, Jyi-Tsong Lin |
| 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-0723103-161925 |
| Rights | not_available, Copyright information available at source archive |
Page generated in 0.0022 seconds