20 December 2004 A 1-V high-performance CMOS current reference for application in a photoreceiver transimpedance amplifier
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Abstract
In this paper we present a novel 1V current reference for a transimpedance amplifier (TIA) which provides a small dependence of the output response on temperature and process variation. The circuit is designed to drive the current tail of a photoreceiver TIA. The proposed architecture is based on a bandgap voltage reference and use an nMOS transistor at its output to produce a temperature compensation of mobility and threshold voltage (VTH) over a wide range of temperature (-40 to 100°C) and process variation affecting VTH. This technique has been confirmed by theoretical analysis and SPICE simulations using the TSMC CMOS 0.18μm process.
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Abdelhalim Bendali, Yves Audet, "A 1-V high-performance CMOS current reference for application in a photoreceiver transimpedance amplifier", Proc. SPIE 5577, Photonics North 2004: Optical Components and Devices, (20 December 2004); doi: 10.1117/12.567563; https://doi.org/10.1117/12.567563
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