VDDDA——用于模拟信号处理的新型“电压差”装置

2013 8th International Conference on Electrical and Electronics Engineering (ELECO) Pub Date : 2013-11-01 DOI:10.1109/ELECO.2013.6713927

N. Herencsar, R. Sotner, B. Metin, J. Koton, K. Vrba

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引用次数: 28

摘要

本文提出了一种新型的“电压差分”有源器件——电压差分差分放大器(VDDDA)。在新型无电阻电压模一阶全通滤波器和电压模正交振荡器的设计上证明了该器件的实用性。该滤波器的极频可以很容易地通过内部跨导控制，并提供高输入和低输出阻抗，这对级联很重要。在振荡器中，振荡条件和振荡频率可以独立调谐。采用台积电0.18 μm -7级SCN018 CMOS工艺参数，在±0.9 V电源电压下进行SPICE仿真，验证了理论结果。

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VDDDA - New ‘voltage differencing’ device for analog signal processing

This paper presents a new `voltage differencing' active building block called voltage differencing differential difference amplifier (VDDDA). The usefulness of the introduced device is demonstrated on novel resistorless voltage-mode first-order all-pass filter and voltage-mode quadrature oscillator design. The pole frequency of the filter can be easily controlled by means of internal transconductance and it provides both high-input and low-output impedances, which is important for cascading. In the oscillator the condition of oscillation and frequency of oscillation can be tuned independently. The theoretical results are verified by SPICE simulations using TSMC 0.18 μm level-7 SCN018 CMOS process parameters with ±0.9 V supply voltages.

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2013 8th International Conference on Electrical and Electronics Engineering (ELECO)

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