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When inductors are connected in series, the equivalent inductance of the combination will be the sum of all individual inductors’ inductance. This is just like the equivalent resistance of series-connected resistors.But in the case of inductors, we sometimes have to consider the effect of mutual inductance between the inductors.Then, to calculate the inductance of each inductor, we consider both the self-inductance and mutual inductance of the inductor.The mutual inductance will be either added

In this paper, a transformer-based bandwidth (BW) extension technique is employed to improve the BW, noise, and silicon area of inverter-based transimpedance amplifiers (TIAs) even when they use inductive peaking. A TIA based on the proposed technique, designed and laid out in a 16-nm FinFET process, demonstrates a 36% increased in BW, a 19% reduction in input-referred noise, and a 57% reduction in silicon area compared to the conventional TIA with inductive peaking. In the proposed TIA architec