Fully differential current-mode third-order butterworth VHF Gm-C filter in 0.18 μm CMOS

被引：10
|
作者：
Hwang, Y. -S. [1 ]
Chen, J. -J. [1 ]
Lai, J. -H. [1 ]
Sheu, P. -W. [1 ]
机构：
[1] Natl Taipei Univ Technol, Dept Elect Engn, Taipei 106, Taiwan
来源：
IEE PROCEEDINGS-CIRCUITS DEVICES AND SYSTEMS | 2006年 / 153卷 / 06期
关键词：
D O I：
10.1049/ip-cds:20060028
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：
The authors present a new fully differential current-mode third-order Butterworth very high frequency G(m)-C filter using current-mode linear transformation (CMLT) techniques. The systematic design method and procedure are developed to realise CMLT G(m)-C filters efficiently. A third-order Butterworth lowpass filter with 200 MHz cutoff frequency, embedded bandgap reference and bias circuit is implemented in a TSMC 0.18 mu m 1P6M process. The total harmonic distortion of the proposed current-mode filter is -46.5 dB at 200 MHz with input signal 0.4 mA. Power dissipation is 16.77 mW under 1.8 V supply voltage. Its core area occupies 0.163 x 0.186 mm(2). Both post-layout simulation and experimental results confirm the theoretical analysis. The proposed circuits can be extended to high-order Chebychev and elliptic filters.
引用
收藏
页码：552 / 558
页数：7
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