{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX281AEWE+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX281AEWE","canonicalUrl":"https://icboms.com/analog-devices/MAX281AEWE","factsUrl":"https://icboms.com/api/mcp/products/MAX281AEWE%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX281AEWE+, 5th-order Bessel low-pass switched-capacitor filter, 20kHz cutoff, single filter, 16-SOIC (7.50mm width), surface mount, tube.","salesMarkdown":"## Filter topology and cutoff selection The MAX281AEWE+ is a 5th-order Bessel low-pass switched-capacitor filter with a 20 kHz cutoff frequency, designed for anti-aliasing and reconstruction in signal chains where phase linearity matters more than stopband sharpness. The Bessel characteristic delivers near-constant group delay across the passband — the 20 kHz corner preserves waveform shape for pulse or data signals, unlike a Chebyshev or elliptic filter that rings on transients. ## Supply flexibility and single-filter architecture Runs from a single 4.75 V to 16 V supply or a split ±2.375 V to ±8 V rail — the wide envelope lets the filter sit on a 5 V or 12 V analog bus without a dedicated regulator. Single-filter configuration means one channel per package; a multi-channel system needs one MAX281AEWE+ per signal path, which is the trade-off for the Bessel phase response. Housed in a 16-SOIC wide-body (0.295-inch, 7.50 mm width) with surface-mount termination — the 1.27 mm pitch is layout-friendly for 2-layer boards and reworkable with standard hot-air profiles. Supplied in tube packaging; the SOIC-16 footprint matches the industry-standard wide-body land pattern, so no custom pad geometry is needed. ## Lifecycle and compliance posture Analog Devices is the sole source; no pin-compatible second-source is listed.","metaTitle":"MAX281AEWE+ Analog Devices 5th-Order Bessel Low-Pass Filter","metaDescription":"MAX281AEWE+ from Analog Devices: 5th-order Bessel low-pass switched-capacitor filter, 20kHz cutoff, 16-SOIC. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tube","Filter Type":"Bessel, Low Pass Switched Capacitor","Filter Order":"5th","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 16V, ±2.375V ~ 8V","Number of Filters":"1","Supplier Device Package":"16-SOIC","Frequency - Cutoff or Center":"20kHz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$25.2","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$25.20000","currency":"USD"},{"qty":10,"price":"$23.24600","currency":"USD"},{"qty":25,"price":"$22.20080","currency":"USD"},{"qty":100,"price":"$19.85010","currency":"USD"},{"qty":250,"price":"$18.93600","currency":"USD"},{"qty":500,"price":"$18.02184","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the cutoff frequency and filter type of the MAX281AEWE+?","answer":"The MAX281AEWE+ is a 5th-order Bessel low-pass switched-capacitor filter with a 20 kHz cutoff frequency. The Bessel topology provides linear phase response, making it suitable for preserving signal shape in pulse or data applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX281AEWE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX281AEWE 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}}