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High-bandwidth optical front-end reference design

TIDA-00725

Overview

This reference design implements and measures a complete 120MHz high-bandwidth optical front-end consisting of a high-speed transimpedance amplifier, a fully differential amplifier, and a high-speed 14-bit 160MSPS ADC with JESD204B interface. The design provides hardware and software to evaluate the system's response to high-speed optical pulses generated by the included laser driver and diode, suitable for applications with optical time domain reflectometry (OTDR).

characteristic

● Optical front-end design with proven system performance
● High-speed signal path, bandwidth greater than 120MHz
● High-speed transimpedance amplifier for current-to-voltage conversion, followed by a fully differential amplifier for driving a high-speed 14-bit ADC
● Ultrafast laser diode drivers and laser diodes to generate emission signals
● Avalanche Photodiode (APD) front end with onboard high voltage power supply
● Flexible use allows easy replacement of components in the signal path of optics, amplifiers or data converters

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Blockdiagram

Design Files

Documentation

TIDU

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Update:2025-06-24 04:49:26

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