{
  "abstract": "This paper describes the operating principle, circuit implementation, and mathematical basis of a logarithmic analog-to-digital converter (ADC) that exploits the natural exponential decay of a damped LC tank oscillator. An input charge pulse excites a tuned LC resonator into free oscillation. A multi-stage high-speed amplifier chain buffers the decaying waveform, and a fast comparator counts the number of oscillation cycles that exceed a programmable threshold. Because the tank envelope decays exponentially, the cycle count is proportional to the natural logarithm of the input charge, yielding logarithmic compression over a wide dynamic range without explicit logarithmic circuitry. The upgraded unit incorporates a modern MCU with USB, Ethernet interfaces and SD card for collected data storage. The architecture is well suited to applications requiring large dynamic range in a compact, low-power implementation.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.22116",
  "author_total": 6,
  "authors": [
    {
      "name": "S. Abovyan"
    },
    {
      "name": "A. Chilingarian"
    },
    {
      "name": "D. Pokhsraryan"
    },
    {
      "name": "B. Sargsyan"
    },
    {
      "name": "T. Karapetyan"
    },
    {
      "name": "V. Danielyan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/94dw12b5arwa0.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.22116",
  "fulltext_url": null,
  "id": "94dw12b5arwa0",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.22116",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.ins-det"
    ],
    [
      "openalex",
      "2204|Analog and Mixed-Signal Circuit Design"
    ]
  ],
  "openalex": "W7214023632",
  "pdf_url": "https://arxiv.org/pdf/2609.22116",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/94dw12b5arwa0.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:19Z",
      "native_id": "2609.22116",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.22116"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.ins-det",
      "subfield": "applied-instrumentation"
    }
  ],
  "title": "A Gamma/Electron Spectrometer with Logarithmic ADC based on LC Tank Ring-Down Oscillation Counting",
  "title_text": "A Gamma/Electron Spectrometer with Logarithmic ADC based on LC Tank Ring-Down Oscillation Counting",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:19Z",
  "url": "https://research.draconitic.com/paper/94dw12b5arwa0",
  "venue": "arXiv",
  "versions": []
}