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Low noise trans-impedance amplifier design (what can wireless transceiver architectures learn from optics?)
The electronic circuit sitting at the receiving end of the optical system endures stringent requirements in terms of noise, linearity, gain, and bandwidth. The sensitivity of the receiver is directly affected by the noise of the front end while a higher gain in the front end would reduce the contribution of the noise of succeeding stages. Nonlinearities in the front end of a wireless receiver distort the signal in the presence of larger blockers while in a wireline receiver, the front end needs to process the full dynamic range before the signal reaches VGA. In this talk, TIA design challenges will be reviewed, and state-of-the-art design techniques will be discussed.