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A 1.8V high dynamic range CMOS Gm-c filter for portable video systems

Mehrmanesh, S ; Sharif University of Technology | 2002

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  1. Type of Document: Article
  2. DOI: 10.1109/ICM-02.2002.1161491
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2002
  4. Abstract:
  5. A 4th order, 5 MHz, lowpass Butterworth Gm-c filter has been combined with a low noise low-voltage amplifier to form a lowpass filter for video applications. In this filter an improved transconductor and a powerful method is used to adjust the transconductance gain for tuning application. A continuous variable gain current-to-current converter is used to tune the transconductor value. The THD of the filter is -77 dB for 1 Vppd input signal. Input referred noise is 40 nV/√Hz in the worst case. All the circuits are designed based on a 0.25 μm CMOS process technology with a single 1.8 V supply. © 2002 IEEE
  6. Keywords:
  7. Circuit noise ; Circuit optimization ; CMOS process ; CMOS technology ; Dynamic range ; Filters ; Gain ; Low-noise amplifiers ; Transconductance ; Transconductors
  8. Source: 14th International Conference on Microelectronics, ICM 2002, 11 December 2002 through 13 December 2002 ; Volume 2002-January , 2002 , Pages 38-41 ; 0780375734 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/1161491