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We propose a new circuit for the realization of transimpedance amplifiers (TIAs), targeted at reducing the input-referred noise of the TIA or alternatively increasing the bandwidth, without increasing the power dissipation. An intensive theoretical analysis of the method is given. A prototype chip is fabricated in 0.25-SiGe BiCMOS technology. The TIA has a gain of 71dBΩ, a bandwidth of 20.5 GHz, and an average input-referred current noise density of 18pA/ Hz. The circuit operates from a 2.5-V supply, and power dissipation is 57 mW.
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Sedighi et al. (2012) studied this question.
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