CMOS Transimpedance Amplifier with Controllable Gain for RF Overlay

Royo, G.;Gimeno Gasca, Cecilia;Sanchez-Azqueta, C.;Aldea, C.;Celma, S.
(2016) 12th Conference on Ph.D. Research in Microelectronics and Electroniczs (PRIME 2016) — Location: Lisboa (Portugal) (27.June.2016)

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Authors
  • Royo, G.Universidad de Zaragoza, Spain
    Author
  • Gimeno Gasca, CeciliaUCLouvain
    Author
  • Sanchez-Azqueta, C.Universidad de Zaragoza, Spain
    Author
  • Aldea, C.Universidad de Zaragoza, Spain
    Author
  • Celma, S.Universidad de Zaragoza, Spain
    Author
Abstract
In this paper, a fully-differential transimpedance amplifier (TIA) with controllable transimpedance for use in RF overlay downstream communication systems is presented. It consists of a shunt-shunt feedback transimpedance amplifier with transimpedance and open loop gain control. The transimpedance amplifier is intended for 47 MHz to 870 MHz subcarrier multiplexed RF signals with a 18 dBΩ transimpedance gain control range. The TIA, designed in a CMOS 180 nm technology, dissipates 27 mW from a supply voltage of 1.8 V. The input-referred noise current is lower than 6 pA/√Hz to allow an optical input power from -6 to +2 dBm.
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Royo, G., Gimeno Gasca, C., Sanchez-Azqueta, C., Aldea, C., & Celma, S. (2016). CMOS Transimpedance Amplifier with Controllable Gain for RF Overlay. 12th Conference on Ph.D. Research in Microelectronics and Electroniczs (PRIME 2016), Lisboa (Portugal). https://hdl.handle.net/2078.5/252506