A shunt series feedback transimpedance amplifier (TIA), based on a current amplifier using a zero---pole cancellation, followed by a 6 stages limiting amplifier (LA), proves to be suitable as receiver front-end for a 8 Gb/s communications over fiber optic. The front-end is realized with a 0.18 ¿m CMOS technology, and shows the following performances: the TIA has a 50 dB¿ transimpedance gain and 5.5 GHz bandwidth, the LA has a 46 dB gain and 7.9 GHz bandwidth. The differential voltage swing at the output is 300 mV. The total power consumption is 112 mW.
A 0.18 µm CMOS TIA plus Limiting Amplifier for 8 Gb/s Fiber Optic Communications
CASTELLO, RINALDO;SVELTO, FRANCESCO;
2003-01-01
Abstract
A shunt series feedback transimpedance amplifier (TIA), based on a current amplifier using a zero---pole cancellation, followed by a 6 stages limiting amplifier (LA), proves to be suitable as receiver front-end for a 8 Gb/s communications over fiber optic. The front-end is realized with a 0.18 ¿m CMOS technology, and shows the following performances: the TIA has a 50 dB¿ transimpedance gain and 5.5 GHz bandwidth, the LA has a 46 dB gain and 7.9 GHz bandwidth. The differential voltage swing at the output is 300 mV. The total power consumption is 112 mW.File in questo prodotto:
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