New low-voltage fully programmable CMOS triangular/trapezoidal function generator circuit

被引：30
|
作者：
Kachare, M
Ramírez-Angulo, J
Carvajal, RG
López-Martín, AJ
机构：
[1] New Mexico State Univ, Klipsch Sch Elect & Comp Engn, Las Cruces, NM 88003 USA
[2] Univ Seville, Escuela Super Ingn, Dept Ingn Elect, E-41092 Seville, Spain
[3] Univ Publ Navarra, Dept Elect & Elect Engn, E-31006 Pamplona, Spain
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2005年 / 52卷 / 10期
关键词：
analog integrated circuits; analog processing circuits; analog-to-digital conversion; nonlinear circuits; piecewise-linear (PWL) techniques;
D O I：
10.1109/TCSI.2005.853243
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 versatile lowwvoltage CMOS circuit with a triangular/trapezoidal transconductance characteristic and independently programmable slope (keeping constant height or constant width), height (keeping constant slope or constant width), and horizontal position is presented. Simulation results using Cadence DFW-II that verify the functionality of the circuit with +/- 1.5-V supplies are presented. A chip prototype has been fabricated in a 0.5-mu m technology and experimentally verified. The circuit can find application in the implementation of high resolution, high speed folding analog-to-digital converters, in piecewise-linear approximation, and in the implementation of membership functions in analog and mixed-signal neuro-fuzzy systems.
引用
收藏
页码：2033 / 2042
页数：10
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