Improving the bandwidth of the transimpedance amplifier based on CS stages in cascode configuration using impedance matching techniques

Abu-Taha J. Y., Yazgı M.

Analog Integrated Circuits and Signal Processing, cilt.89, sa.3, ss.685-691, 2016 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 89 Sayı: 3
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/s10470-016-0757-6
  • Dergi Adı: Analog Integrated Circuits and Signal Processing
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.685-691
  • Anahtar Kelimeler: Bandwidth extension, Cascode stage, Input-referred noise, Matching network, Transimpedance amplifier (TIA)
  • Samsun Üniversitesi Adresli: Hayır

Özet

This paper describes a matching technique to improve the bandwidth of multi-GHz frequency ranges for the transimpedance amplifier. It is shown that by simultaneously using of series input matching topology and T-output matching network, the bandwidth of the TIA can be obviously improved. This methodology is supported by a design example in a 0.18 μm CMOS technology. The post layout simulation results show a −3dB bandwidth of 20 GHz with 50 fF photodiode capacitance, a transimpedance gain of 52.6dBΩ, 11pA/Hz input referred noise and group delay less than 8.3ps. The TIA dissipates 1.3mW from a 1.8V supply voltage.