Universal Current-Mode Biquad Filter Using a VDTA

• 作者: Data Ram Bhaskar Dinesh Prasad Mayank Srivastava
• 来源期刊: 电路与系统(英文)
• 学科: 工学
• 关键词: Current Mode FILTER VOLTAGE Differencing TRANSCONDUCTANCE AMPLIFIER
• 年，卷（期）: dlyxtyw_2013,（1）
• 页码范围: 29-33
• 页数: 5页
• 分类号: TN7

摘要

This paper presents a new current-mode single input multi output (SIMO) type biquad employing one voltage differencing transconductance amplifier (VDTA), two grounded capacitors and a single grounded resistor. The configuration realizes all basic filter functions (i.e. Low Pass (LP), High Pass (HP), Band Pass (BP), Notch (BR) and All Pass (AP)). The natural frequency (ω0) and bandwidth (BW) are independently tunable. The workability of proposed configuration has been verified using SPICE simulation with TSMC CMOS 0.18 μm process parameters.