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Title: High speed sampler and demultiplexer

Abstract

A high speed sampling demultiplexer based on a plurality of sampler banks, each bank comprising a sample transmission line for transmitting an input signal, a strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates at respective positions along the sample transmission line for sampling the input signal in response to the strobe signal. Strobe control circuitry is coupled to the plurality of banks, and supplies a sequence of bank strobe signals to the strobe transmission lines in each of the plurality of banks, and includes circuits for controlling the timing of the bank strobe signals among the banks of samplers. Input circuitry is included for supplying the input signal to be sampled to the plurality of sample transmission lines in the respective banks. The strobe control circuitry can repetitively strobe the plurality of banks of samplers such that the banks of samplers are cycled to create a long sample length. Second tier demultiplexing circuitry is coupled to each of the samplers in the plurality of banks. The second tier demultiplexing circuitry senses the sample taken by the corresponding sampler each time the bank in which the sampler is found is strobed. A plurality of suchmore » samples can be stored by the second tier demultiplexing circuitry for later processing. Repetitive sampling with the high speed transient sampler induces an effect known as "strobe kickout". The sample transmission lines include structures which reduce strobe kickout to acceptable levels, generally 60 dB below the signal, by absorbing the kickout pulses before the next sampling repetition.« less

Inventors:
 [1]
  1. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
870226
Patent Number(s):
5479120
Assignee:
Regents of University of California (Oakland, CA)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
speed; sampler; demultiplexer; sampling; based; plurality; banks; bank; comprising; sample; transmission; line; transmitting; input; signal; strobe; gates; respective; positions; response; control; circuitry; coupled; supplies; sequence; signals; lines; circuits; controlling; timing; samplers; included; supplying; sampled; repetitively; cycled; create; length; tier; demultiplexing; senses; corresponding; time; found; strobed; samples; stored; processing; repetitive; transient; induces; effect; kickout; structures; reduce; acceptable; levels; 60; db; below; absorbing; pulses; repetition; speed sampler; control circuitry; sampling gate; acceptable levels; transmission lines; control circuit; transmission line; input signal; strobe transmission; sample transmission; sampling gates; speed sampling; strobe signal; multiplexing circuit; transient sampler; speed transient; speed sample; acceptable level; /327/

Citation Formats

McEwan, Thomas E. High speed sampler and demultiplexer. United States: N. p., 1995. Web.
McEwan, Thomas E. High speed sampler and demultiplexer. United States.
McEwan, Thomas E. Sun . "High speed sampler and demultiplexer". United States. https://www.osti.gov/servlets/purl/870226.
@article{osti_870226,
title = {High speed sampler and demultiplexer},
author = {McEwan, Thomas E},
abstractNote = {A high speed sampling demultiplexer based on a plurality of sampler banks, each bank comprising a sample transmission line for transmitting an input signal, a strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates at respective positions along the sample transmission line for sampling the input signal in response to the strobe signal. Strobe control circuitry is coupled to the plurality of banks, and supplies a sequence of bank strobe signals to the strobe transmission lines in each of the plurality of banks, and includes circuits for controlling the timing of the bank strobe signals among the banks of samplers. Input circuitry is included for supplying the input signal to be sampled to the plurality of sample transmission lines in the respective banks. The strobe control circuitry can repetitively strobe the plurality of banks of samplers such that the banks of samplers are cycled to create a long sample length. Second tier demultiplexing circuitry is coupled to each of the samplers in the plurality of banks. The second tier demultiplexing circuitry senses the sample taken by the corresponding sampler each time the bank in which the sampler is found is strobed. A plurality of such samples can be stored by the second tier demultiplexing circuitry for later processing. Repetitive sampling with the high speed transient sampler induces an effect known as "strobe kickout". The sample transmission lines include structures which reduce strobe kickout to acceptable levels, generally 60 dB below the signal, by absorbing the kickout pulses before the next sampling repetition.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

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