{"paper":{"title":"Spectral Impact of Mismatches in Interleaved ADCs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Exact expressions map offset, gain, and timing skew mismatches to spurs and replicas in interleaved ADC spectra","cross_cats":["cs.AR"],"primary_cat":"eess.SP","authors_text":"Christoph Studer, J\\'er\\'emy Guichemerre, Robert Reutemann, Thomas Burger","submitted_at":"2026-03-25T14:20:00Z","abstract_excerpt":"Interleaved ADCs are critical for applications requiring multi-gigasample per second (GS/s) rates, but their performance is often limited by offset, gain, and timing skew mismatches across the sub-ADCs. We propose exact but compact expressions that describe the impact of each of those non-idealities on the output spectrum. We derive the distribution of the power of the induced spurs and replicas, critical for yield-oriented derivation of sub-ADC specifications. Finally, we provide a practical example in which calibration step sizes are derived under the constraint of a target production yield."},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We propose exact but compact expressions that describe the impact of each of those non-idealities on the output spectrum. We derive the distribution of the power of the induced spurs and replicas, critical for yield-oriented derivation of sub-ADC specifications.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The derivations treat offset, gain, and timing skew as the only non-idealities while assuming all sub-ADCs are otherwise ideal and that the mismatches are statistically independent across channels; this modeling choice is implicit in the abstract's focus and would invalidate the closed-form expressions if additional impairments or correlations dominate.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Derives exact expressions for spectral spurs from mismatches in interleaved ADCs plus power distributions for yield-oriented sub-ADC specs.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Exact expressions map offset, gain, and timing skew mismatches to spurs and replicas in interleaved ADC spectra","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"4e993154fdddabb2d2d4627983fd8188cd22054dfb37471dec6aed08ddd5fd81"},"source":{"id":"2603.24338","kind":"arxiv","version":2},"verdict":{"id":"f7c6ae4a-63d9-4882-812b-a0ae099ee879","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T17:40:11.732850Z","strongest_claim":"We propose exact but compact expressions that describe the impact of each of those non-idealities on the output spectrum. We derive the distribution of the power of the induced spurs and replicas, critical for yield-oriented derivation of sub-ADC specifications.","one_line_summary":"Derives exact expressions for spectral spurs from mismatches in interleaved ADCs plus power distributions for yield-oriented sub-ADC specs.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The derivations treat offset, gain, and timing skew as the only non-idealities while assuming all sub-ADCs are otherwise ideal and that the mismatches are statistically independent across channels; this modeling choice is implicit in the abstract's focus and would invalidate the closed-form expressions if additional impairments or correlations dominate.","pith_extraction_headline":"Exact expressions map offset, gain, and timing skew mismatches to spurs and replicas in interleaved ADC spectra"},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2603.24338/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"decdd19752a597633355e1eace6faee853b25728f8bbc00b55fe27c5bd888f6b"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}