{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9716510","patent":{"patent_number":"US-9716510","title":"Comparator circuits with constant input capacitance for a column-parallel single-slope ADC","assignee":null,"inventors":[],"filing_date":"2015-05-12T00:00:00.000Z","publication_date":"2017-07-25T00:00:00.000Z","cpc_codes":["H04N"],"num_claims":23,"abstract":"Comparator circuits suitable for use in a column-parallel single-slope ADC comprise a comparator, an input voltage sampling switch connected between an input voltage Vin and a first node, and a sampling capacitor connected between the first and second nodes and which stores a voltage which varies with Vin when the sampling switch is closed. A first reset switch is connected between the second node and a reset voltage, an isolation buffer is coupled between the second node and a comparator input, and a voltage ramp switch applies a voltage ramp Vramp to the first node when closed. The comparator output toggles when Vramp exceeds Vin, with the isolation buffer maintaining a nearly constant capacitive load on Vramp. A ‘ramp disconnect’ feature can be used to increase the circuit's input range, and a dummy capacitor can be employed to maintain a constant capacitance on Vramp."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Comparator circuits with constant input capacitance for a column-parallel single-slope ADC","description":"Comparator circuits suitable for use in a column-parallel single-slope ADC comprise a comparator, an input voltage sampling switch connected between an input voltage Vin and a first node, and a sampli","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9716510","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9716510","citation_suggestion":"Patentable. \"Comparator circuits with constant input capacitance for a column-parallel single-slope ADC\" (US-9716510). https://patentable.app/patents/US-9716510","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9716510","json":"https://patentable.app/api/llm-context/US-9716510","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:35:25.272Z"}