摘要
分析一个由BiCMOS构成的单端对数域积分器的频率特性和存在的局限性 .提出了一个工作在甲乙类状态的对数域全差分积分器 ,并采用跨导线性原理分析得到了其传递函数 ,分析了全差分积分器的频率特性和动态范围 .PSpice仿真结果说明 ,全差分对数域积分器具有较宽的频率调谐范围 ,能在 1～ 2V之间的低电压下工作 ,同时具有较大的动态范围 ,更适合于高频、低电压和大动态范围的滤波器设计 .
The frequency response of the log-domain single-ended integrator based on BiCMOS is analyzed. The differential log-domain integrator with class AB operation is proposed. The transfer function is given by translinear principle and the frequency response and dynamic range of the differential integrator are studied. The differential log-domain integrator having large tuning range, low voltage (1-2 V) and wide dynamic range is confirmed by means of PSpice simulations, and is appropriate for filter designs with high frequency, low-voltage and wide dynamic range.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2001年第2期124-127,共4页
Journal of Xi'an Jiaotong University
关键词
对数域电路
积分器
低电压
滤波器
BICMOS
Differential equations
Electric filters
Electric potential
Frequencies
Simulation
