A 0.6mW 31MHz 4th-Order Low-Pass Filter with+29dBm IIP3 Using Self-Coupled Source Follower Based Biquads in 0.18μm CMOS

被引：0

作者：

Xu, Yang ^{[1
]}

Leuenberger, Spencer ^{[1
]}

Venkatachala, Praveen Kumar ^{[1
]}

Moon, Un-Ku ^{[1
]}

机构：

[1] Oregon State Univ, Sch Elect Engn & Comp Sci, Corvallis, OR 97331 USA

来源：

2016 IEEE SYMPOSIUM ON VLSI CIRCUITS (VLSI-CIRCUITS) | 2016年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A highly compact low-pass filter (LPF) using self-coupled source follower based biquads is presented. The biquad cell synthesizes a 2nd-order low-pass transfer function in a single branch, using only two capacitors and a source follower with embedded local feedback for excellent linearity. A 4th-order Chebyshev LPF prototype is designed with a cascade of two biquads in 0.18 mu m CMOS, and occupies an active area of 0.1mm(2). A cut-off frequency of 31MHz is measured with a stop-band rejection of 76dB. The prototype filter draws only 0.46mA current from a 1.35V supply, and achieves an in-band IIP3 of + 29dBm. The averaged in-band input-referred noise is 22.8nV/root Hz, resulting in a dynamic range of 71dB.

引用

页数：2