標題: | 15MHZ WIDE TUNING-RANGE OTA WITH-69dB HD3 AND ITS APPLICATION TO GM-C FILTER |
作者: | Lin, Jun-Ye Chang, Wei-Hsiu Hung, Chung-Chih 電機工程學系 Department of Electrical and Computer Engineering |
公開日期: | 2011 |
摘要: | This paper presents a high linearity operational transconductance amplifier (OTA). The OTA circuit combines the techniques of the double differential pairs (DDP) and Source-degenerated current mirrors to achieve high linearity in a large GM tuning range. With the Gm values ranged from 60 mu S to 130 mu S, the HD3 of the OTA is below -69dB at 15MHz. The OTA has been applied to a fourth-order linear phase low-pass filter for high speed system. The fourth-order low-pass filter with the cutoff frequency of 15MHz has been implemented. The filter is designed by 0.18-mu m CMOS process technology, the HD3 performance is about -53dB, and the group delay variation is below 5% at cutoff frequency. |
URI: | http://hdl.handle.net/11536/15479 |
ISBN: | 978-1-4244-8499-7 |
期刊: | 2011 INTERNATIONAL SYMPOSIUM ON VLSI DESIGN, AUTOMATION AND TEST (VLSI-DAT) |
起始頁: | 108 |
結束頁: | 111 |
顯示於類別: | 會議論文 |