A 0.8-V accurately tuned linear continuous-time filter

被引：8
作者：
Vemulapalli, G [1 ]
Hanumolu, PK
Kook, YJ
Moon, UK
机构：
[1] Texas Instruments Inc, Dallas, TX 75265 USA
[2] Oregon State Univ, Sch Elect Engn & Comp Sci, Corvallis, OR 97331 USA
来源：
IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2005年 / 40卷 / 09期
关键词：
continuous-time filter; linear; low-voltage; master-slave tuning; power-up mismatch calibration; R-MOSFET-C;
D O I：
10.1109/JSSC.2005.848170
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：
An accurately tuned low-voltage linear continuous-time filter is presented in this paper. Accurate tuning is achieved using time-constant matched master-slave tuning combined with power-up mismatch calibration. A low-pass biquad designed for a corner frequency of 115 kHz achieves better than -80-dB total harmonic distortion with a 250-mV(pp) 10-kHz input signal. The prototype implemented in 0.18-mu m CMOS process occupies an area of 0.4 mm(2) and dissipates 4.6 mW (2.6 mW for the filter and 2 mW for tuning) of power.
引用
收藏
页码：1972 / 1977
页数：6
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