Universal voltage-mode biquad filter using voltage differencing transconductance amplifier

作者：Prasad Dinesh^*; Bhaskar Data Ram; Srivastava Mayank

来源：Indian Journal of Pure & Applied Physics, 2013, 51(12): 864-868.

• Voltage mode filter
• Voltage differencing transconductance amplifier
• Analog signal processing
• MISO-type

A new voltage mode multi input single output (MISO) type biquad is proposed. The proposed configuration employs one voltage differencing transconductance amplifier (VDTA) as the active element, two capacitors and a grounded resistor. The configuration realizes all five filter functions [i.e. Low Pass (LP), High Pass (HP), Band Pass (BP), Notch (BR) and All Pass (AP)] without any matching condition. The natural frequency (omega(0)) and bandwidth (BW) are independently tunable. The workability of proposed configuration has been verified using SPICE simulation with TSMC CMOS 0.18 mu m process parameters.

• 出版日期2013-12