{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX9021AXK","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX9021AXK","canonicalUrl":"https://icboms.com/analog-devices/MAX9021AXK","factsUrl":"https://icboms.com/api/mcp/products/MAX9021AXK","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX9021AXK, General Purpose comparator, Series MAX9021, Push-Pull output, 4mV hysteresis, 5µA quiescent, 2.5V to 5.5V supply, SC-70-5 package, -40°C to 125°C.","salesMarkdown":"## What the ratings mean for your BOM The 4 mV hysteresis is built in — no external resistor divider needed for clean switching at slow edges. Propagation delay is 8 µs typical, so this is not a high-speed comparator for switching regulators or fast overcurrent detection; it is sized for level sensing, window comparators, and wake-up circuits where response time in microseconds is acceptable. Input bias current is 0.08 µA max at 5 V, which lets you use high-value resistor dividers without offset error. Output sink/source is 50 mA at 5 V, enough to drive a logic input or a small LED directly. ## Lifecycle and sourcing The MAX9021AXK is listed as Active with no last-time-buy or obsolescence notice. RoHS status is non-compliant, so verify your assembly line's exemption or lead-free policy before specifying. Sourced and quoted to order through independent distribution; availability and current pricing confirmed at quote time against an RFQ.","metaTitle":"MAX9021AXK General Purpose Comparator, SC-70-5","metaDescription":"MAX9021AXK general-purpose comparator from Maxim Integrated. Push-pull output, 4mV hysteresis, 5µA quiescent current, -40°C to 125°C. SC-70-5 package.","metaKeywords":null},"attributes":{"series":"MAX9021","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Type":"General Purpose","Series":"MAX9021","Package":"Bulk","Hysteresis":"4mV","Output Type":"Push-Pull","Mounting Type":"Surface Mount","Package / Case":"5-TSSOP, SC-70-5, SOT-353","lifecycle_stage":"eol_hot","CMRR, PSRR (Typ)":"100dB, 80dB PSRR","Number of Elements":"1","Operating Temperature":"-40°C ~ 125°C","Current - Output (Typ)":"50mA @ 5V","Propagation Delay (Max)":"8µs (Typ)","Supplier Device Package":"SC-70-5","Current - Quiescent (Max)":"5µA","Current - Input Bias (Max)":"0.08µA @ 5V","Voltage - Input Offset (Max)":"8mV @ 5V","Voltage - Supply, Single/Dual (±)":"2.5V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.88","stockQuantity":0,"priceTiers":[{"qty":340,"price":"$0.88000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/891d253b12d2a1b9ccaa39a8a3fde6da.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output type of MAX9021AXK?","answer":"Push-pull output — no external pull-up resistor required. The output swings rail-to-rail and can sink or source up to 50 mA at 5 V."},{"question":"What are the equivalents or replacements for MAX9021AXK?","answer":"No pin-compatible direct replacement is listed in the available cross-reference data. Within the MAX9021 series, other package options exist, but the SC-70-5 variant is unique. For a functional equivalent, look for a single general-purpose comparator in SC-70-5 with push-pull output and 2.5 V to 5.5 V supply range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX9021AXK","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX9021AXK when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}