电子器件2016，Vol.39Issue(2)：350-355,6.DOI:10.3969/j.issn.1005-9490.2016.02.021
一种多输出压控电流差分跨导放大器的设计
The Design of a New Multiple Output Voltage Control CDTA
刘晨光 1王卫东 1胡许光1
作者信息
- 1. 桂林电子科技大学信息与通信学院，广西桂林541004
- 折叠
摘要
Abstract
A new Z-copy current differencing transconductance amplifier(CDTA)with variable transconductance ad⁃justed by voltage is presented. Adopted a low voltage-high performance current mirror in the current input stage,the consumption of the voltage redundancy,input impedance and transmission error of this circuit are reduced;Based on the MOS linear composite cell,transconductance amplifier stage with voltage control transconductance is achieved. The circuit is designed by using SMIC 0.18 μm CMOS technology,the Spectre simulation results show that the current linear input range is from-100μA to 100μA in ± 0.9 V voltage source condition,the input imped⁃ance is 10Ω. The transconductance can be regulated from 0.34 mS to 1.56 mS,and the-3 dB bandwidths of iz/ii and ix/ii are 131 MHz and 88 MHz. The total power consumption is 2.8 mW. In addition,a current-mode universal bi⁃quad filter is acquired occupying only two MO-VCCDTA and two capacitors.关键词
电流差分跨导放大器/低压高性能电流镜/电压控制/电流模式通用二阶滤波器Key words
CDTA/low voltage-high performance current mirror/voltage control/current-mode universal biquad filter分类
信息技术与安全科学引用本文复制引用
刘晨光,王卫东,胡许光..一种多输出压控电流差分跨导放大器的设计[J].电子器件,2016,39(2):350-355,6.
