{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX7491CEE+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX7491CEE","canonicalUrl":"https://icboms.com/analog-devices/MAX7491CEE","factsUrl":"https://icboms.com/api/mcp/products/MAX7491CEE%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX7491CEE+ universal switched-capacitor filter, 2nd-order, 40kHz cutoff, dual filter, 16-SSOP/QSOP package, tube.","salesMarkdown":"## Package and board-fit — 16-QSOP, tube delivery The MAX7491CEE+: The tube packaging means no moisture-sensitive-device (MSD) floor-life clock starts when you open the tube; store the reels dry is not a concern here, just keep the tube sealed against dust. Surface-mount assembly on a standard 0.050-inch pitch SSOP footprint. The 16-pin body is compact enough for space-constrained mixed-signal boards but leaves room for decoupling caps at the supply pins. ## Filter core — 40 kHz switched-capacitor, dual 2nd-order A universal switched-capacitor filter with a 40 kHz center/cutoff frequency and 2nd-order response. The universal topology means it can be configured as low-pass, high-pass, bandpass, or notch by pin-strapping the feedback paths — no external resistors or capacitors set the frequency, only the clock input and the internal switched-capacitor network. Two independent filters on one die — useful for stereo audio anti-aliasing, dual-channel data-acquisition reconstruction, or cascading into a 4th-order response. The 40 kHz cutoff places it in the audio band and low-frequency instrumentation range; it will alias above 40 kHz unless the input is band-limited before the filter. The switched-capacitor architecture draws clock-dependent current; at 40 kHz the dynamic current is modest, but the clock feedthrough at the output needs a post-filter cap (typically 100 pF) to suppress the switching ripple. If you need a backup, the functional equivalent would be a different package or pinout; a board spin would be required. Stock the last-time-buy quantity if the design is long-lived.","metaTitle":"MAX7491CEE+ Analog Devices Switched-Cap Filter, 40kHz","metaDescription":"MAX7491CEE+ universal switched-capacitor filter, 2nd-order, 40kHz cutoff, 2.7-3.6V supply, 16-QSOP. Active, ROHS3. In-stock inventory, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Filter Type":"Universal Switched Capacitor","Filter Order":"2nd","Mounting Type":"Surface Mount","Package / Case":"16-SSOP (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 3.6V","Number of Filters":"2","Supplier Device Package":"16-QSOP","Frequency - Cutoff or Center":"40kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.38","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.38000","currency":"USD"},{"qty":10,"price":"$6.66700","currency":"USD"},{"qty":25,"price":"$6.35640","currency":"USD"},{"qty":100,"price":"$5.51920","currency":"USD"},{"qty":250,"price":"$5.27120","currency":"USD"},{"qty":500,"price":"$4.80608","currency":"USD"},{"qty":1000,"price":"$4.18594","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a345ac756044e1686b6871df5ada77ec.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What filter type and cutoff frequency does this part offer?","answer":"It is a universal switched-capacitor filter with a 2nd-order response and a 40 kHz center/cutoff frequency. The universal topology allows configuration as low-pass, high-pass, bandpass, or notch without external frequency-setting components. Two independent filters are integrated on the same die."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX7491CEE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX7491CEE when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}