Design of highly linear tunable CMOS OTA

被引：0
|
作者：
Koziel, S [1 ]
Szczepanski, S [1 ]
Schaumann, R [1 ]
机构：
[1] Gdansk Univ Technol, Fac Elect Telecommun & Informat, PL-80952 Gdansk, Poland
来源：
2002 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL III, PROCEEDINGS | 2002年
关键词：
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
An analytical method based on the standard square-law MOS model for the design of a highly linear, fully differential CMOS operational transconductance amplifier (OTA) is presented. The proposed circuit implementation combines a cross-coupled quad cell with a source-coupled differential pair, linked by current mirrors. Improved linearity of the OTA over a large tuning range is obtained. SPICE simulations show that for +/-2.5-V, power supply power consumption is 6.6 mW, total harmonic distortion (THD) at 2.5 V-pp is less than 0.2%, and the(+)dynamic range is 77 dB.
引用
收藏
页码：731 / 734
页数：4
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