A novel continuous-time current-mode differentiator and its applications
A novel continuous-time current-mode differentiator and its applications
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一种新型连续时间电流模式微分器及其应用
DOI：
10.1109/82.481476
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
J. Gates
中科院分区：
文献类型：
--
作者：
E. El;J. Gates
提出了一种新颖的连续时间电流模式微分器，其工作频率范围从直流扩展到100 MHz。该电路采用电容耦合电流镜结构。一般的一阶和二阶电路，使用微分器，也介绍了。为了演示所提出的微分器如何用于构造高阶滤波器，实现并仿真了中心频率为2.5 MHz、通带涟漪为1 dB的六阶带通滤波器。所有的模拟进行了使用HSPICE的1.2 /spl μ/m CMOS工艺。采用3 V单电源供电时，六阶滤波器的总功耗为23 mW。
A novel continuous-time current-mode differentiator with a frequency range extending from DC to 100 MHz is presented. This circuit is constructed using a capacitively coupled current mirror. General first- and second-order circuits, using the differentiator, have also been introduced. To demonstrate how the proposed differentiator can be used to construct higher order filters, a sixth-order band-pass filter with a center frequency at 2.5 MHz and a 1 dB pass-band ripple has been realized and simulated. All simulations were performed using HSPICE for a 1.2 /spl mu/m CMOS process. The total power dissipation for the sixth-order filter is 23 mW from a single 3 V supply.