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
Appears in Collections:Conferences Paper