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A 264 MHz CMOS Gm–C LPF for ultra-wideband standard

Gao Zhendong, Li Zhiqiang, Li Hongkun and Zhang Haiying

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Abstract: A 264 MHz CMOS 4th GmC LPF target for the UWB standard is presented. The filter is designed by cascading two biquad cells. Compared with the previously published biquad cells, the biquad proposed here saves 1 transconductor, 3 CMFB networks and 2 capacitors. Benefiting from these merits, the power consumption and chip area of the 4th order UWB LPF are reduced dramatically without other characteristics being affected. The LPF is designed and fabricated with TSMC 0.18 μm 1P6M CMOS technology. The implemented LPF achieves a power gain of 0.5 dB. The measured frequency response matches well with that of the simulating results. The core chip area is only 0.06 mm2, which has a wonderful advantage over those from similar work. The LPF excluding test-buffers dissipates a total current of 3 mA from the 1.8 V power supply.

Key words: Low pass filter (LPF), CMOS, Gm-C, Ultra-wideband (UWB).

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    Received: 18 August 2015 Revised: 04 July 2010 Online: Published: 01 November 2010

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      Gao Zhendong, Li Zhiqiang, Li Hongkun, Zhang Haiying. A 264 MHz CMOS Gm–C LPF for ultra-wideband standard[J]. Journal of Semiconductors, 2010, 31(11): 115010. doi: 10.1088/1674-4926/31/11/115010 Gao Z D, Li Z Q, Li H K, Zhang H Y. A 264 MHz CMOS Gm–C LPF for ultra-wideband standard[J]. J. Semicond., 2010, 31(11): 115010. doi:  10.1088/1674-4926/31/11/115010.Export: BibTex EndNote
      Citation:
      Gao Zhendong, Li Zhiqiang, Li Hongkun, Zhang Haiying. A 264 MHz CMOS Gm–C LPF for ultra-wideband standard[J]. Journal of Semiconductors, 2010, 31(11): 115010. doi: 10.1088/1674-4926/31/11/115010

      Gao Z D, Li Z Q, Li H K, Zhang H Y. A 264 MHz CMOS Gm–C LPF for ultra-wideband standard[J]. J. Semicond., 2010, 31(11): 115010. doi:  10.1088/1674-4926/31/11/115010.
      Export: BibTex EndNote

      A 264 MHz CMOS Gm–C LPF for ultra-wideband standard

      doi: 10.1088/1674-4926/31/11/115010
      • Received Date: 2015-08-18
      • Accepted Date: 2010-06-01
      • Revised Date: 2010-07-04
      • Published Date: 2010-10-31

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