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New CMOS realization of high performance Voltage Differencing Inverting Buffered Amplifier and its filter application

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Abstract

This paper describes a high performance voltage differencing inverting buffered amplifier (VDIBA). The transconductance of the proposed circuit is enhanced by using positive feedback technique with only two extra transistors used in active load. Moreover, the bandwidth of proposed circuit is enhanced by using resistive compensation technique. The performance of proposed VDIBA is demonstrated by detailed frequency analysis. Furthermore, it is shown that the transconductance can be enhanced up to 4.61 mS at biasing current of 300 µA. In addition, a third order low pass filter is given as an application example to confirm the high performance of the proposed VDIBA. The proposed low pass filter operates at natural pole frequency of 15 MHz. The proposed VDIBA and its filter application are implemented using TSMC 90 nm CMOS technology in Cadence virtuoso schematic composer at ±0.6 V supply voltage.

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Authors and Affiliations

  1. Electronics and Communication Engineering Department, NSIT, New Delhi, India

    Shweta Kumari & Maneesha Gupta

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  1. Shweta Kumari
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  2. Maneesha Gupta
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Correspondence to Maneesha Gupta.

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Kumari, S., Gupta, M. New CMOS realization of high performance Voltage Differencing Inverting Buffered Amplifier and its filter application. Analog Integr Circ Sig Process 92, 167–178 (2017). https://doi.org/10.1007/s10470-017-0968-5

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  • DOI: https://doi.org/10.1007/s10470-017-0968-5

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