Publication

TIA Linearity Analysis for Current Mode Receivers

Catherine Dehollain
2018
Conference Papers

Abstract

Current-mode signal processing offers superior linearity and flexibility in front-end implementation. The linearity of a low-input-impedance Trans-Impedance Amplifier (TIA), which is used as a buffer stage that follows a passive mixer, is important in determining the overall receiver performance. In this paper, the analysis for optimizing the linearity of the feedback TIA is presented. The results helps to estimate the minimum required amplifier gain for a targeted linearity. The accuracy of the analysis is validated by simulating different TIA parameters.

Official source

https://infoscience.epfl.ch/entities/publication/0d12d270-6e44-4895-a128-31a110e6de9e

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Catherine Dehollain
2018
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/0d12d270-6e44-4895-a128-31a110e6de9e

About this result

Related concepts (17)

Radio receiver

In radio communications, a radio receiver, also known as a receiver, a wireless, or simply a radio, is an electronic device that receives radio waves and converts the information carried by them to a usable form. It is used with an antenna. The antenna intercepts radio waves (electromagnetic waves of radio frequency) and converts them to tiny alternating currents which are applied to the receiver, and the receiver extracts the desired information.

Superheterodyne receiver

A superheterodyne receiver, often shortened to superhet, is a type of radio receiver that uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently processed than the original carrier frequency. It was long believed to have been invented by US engineer Edwin Armstrong, but after some controversy the earliest patent for the invention is now credited to French radio engineer and radio manufacturer Lucien Lévy. Virtually all modern radio receivers use the superheterodyne principle.

Direct-conversion receiver

A direct-conversion receiver (DCR), also known as homodyne, synchrodyne, or zero-IF receiver, is a radio receiver design that demodulates the incoming radio signal using synchronous detection driven by a local oscillator whose frequency is identical to, or very close to the carrier frequency of the intended signal. This is in contrast to the standard superheterodyne receiver where this is accomplished only after an initial conversion to an intermediate frequency.

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