Highly linear wide input range CMOS OTA architectures operating in subthreshold and strong inversion

被引:3
|
作者
Ramirez-Angulo, J.
Durbha, C.
Ducoudray-Acevedo, G. O.
Carvajal, Ramon G.
Lopez-Martin, A.
机构
[1] New Mexico State Univ, Dept Elect & Comp Engn, Las Cruces, NM 88003 USA
[2] Univ Seville, Escuela Super Ingn, E-41092 Seville, Spain
[3] Univ Publ Navarra, E-31006 Pamplona, Spain
关键词
D O I
10.1016/j.mee.2006.02.011
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 very low distortion low-voltage CMOS OTA with very wide g(m) adjustment and input range is presented. It is based on a fixed gain novel highly linear voltage-to-current conversion input stage and uses electronically programmable current mirrors to achieve very wide transconductance gain adjustment range. The OTA input range remains approximately constant with g(m) adjustment. Bandwidth and input signal range can be adjusted independent of g(m). Simulations results in 0.5 mu m CMOS technology with +/- 1 V supplies and 1 V input range are presented which confirm the characteristics of the proposed structure. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:273 / 279
页数:7
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