Wide Bandwidth Optical Front-end Reference Design
TIDA-00725
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Description & Features

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Key Document

Description

This reference design implements and measures a complete 120MHz wide bandwidth optical front end comprising a high speed transimpedance amplifier, fully differential amplifier, and high speed 14-bit 160MSPS ADC with JESD204B interface.  Hardware and software are provided to evaluate the performance of the system in response to high speed optical pulses generated from the included laser driver and diode for applications including optical time domain reflectrometry (OTDR).

Features

 

  • Optical front-end design with demonstrated system performance
  • High-speed signal path with >120MHz of bandwidth
  • High-speed transimpedance amplifier for I-to-V conversion followed by a fully-differential amplifier driving a high-speed 14-bit ADC
  • Ultra-fast laser-diode driver and laser diode to generate Tx signal
  • Avalanche photo-diode (APD) front-end with on-board high-voltage supply
  • Flexibility to easily change components in the optical, amplifier or data-converter signal-path

 


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Schematic/Block Diagram

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Test Data

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TI Devices (8)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADC34J45  Quad-Channel, 14-Bit, 160-MSPS Analog-to-Digital Converter (ADC)  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
CSD18532Q5B  60V, N ch NexFET MOSFETâ„¢, single SON5x6, 3.2mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
OPA857  Ultralow-Noise, Wideband, Pseudo-Differential Output Transimpedance Amplifier  Special function amplifiers  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1T45  Single-Bit Dual-Supply Bus Transceiver with Configurable Voltage-Level Shifting and 3-State Outputs  Voltage level translators  Sample & Buy View Design Kits & Evaluation Modules
THS4541  High-Speed Differential I/O Amplifier  Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
TPS2400  5.5-V over voltage protection controller with 100-V input transient protection  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS63050  TPS6305x Single Inductor Buck-Boost with 1-A Switches and Adjustable Soft Start  Buck-boost & inverting regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS799  200-mA, low-IQ, low-dropout voltage regulator with low-noise & enable  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADC34J45 Download
CSD18532Q5B VSON-CLIP (DNK)| 8 Download Download
OPA857 Download Download
SN74LVC1T45 Download Download
Download Download
Download Download
Download -
THS4541 Download Download
Download
TPS2400 Download Download
TPS63050 Download Download
TPS799 -
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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 4180 26 Oct 2015
Design files (13)
Title Type Size (KB) Date
ZIP 5006 24 Oct 2016
ZIP 5407 24 Oct 2016
ZIP 3446 24 Oct 2016
ZIP 3511 24 Oct 2016
PDF 288 24 Nov 2015
PDF 289 24 Nov 2015
PDF 134 24 Nov 2015
PDF 226 24 Nov 2015
PDF 123 24 Nov 2015
PDF 117 24 Nov 2015
PDF 172 24 Nov 2015
PDF 160 24 Nov 2015
PDF 33 24 Nov 2015
Related Tools & Software

Hardware development (2)

Software development (1)

Name Part Number Software Type
High-speed data converter pro software  DATACONVERTERPRO-SW  Support software 


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