{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX5400EKA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX5400EKAT","canonicalUrl":"https://icboms.com/analog-devices/MAX5400EKAT","factsUrl":"https://icboms.com/api/mcp/products/MAX5400EKA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX5400EKA+T, SOT-PoT™ series, digital potentiometer, 50kΩ resistance, 256 taps, SPI interface, linear taper, volatile memory, 2.7V–5.5V supply, -40°C to 85°C, SOT-23-8 package.","salesMarkdown":"## 256-tap digital pot in a SOT-23-8 — what it is and where it fits The Maxim Integrated MAX5400EKA+T is a single-channel, 50kΩ digital potentiometer with 256 wiper tap positions, controlled via an SPI interface. It belongs to the SOT-PoT™ family and comes in an 8-pin SOT-23 package — a footprint that fits tightly on sensor modules, handheld instruments, or any board where a mechanical trimmer needs replacement by a digitally set divider. The linear taper suits level-setting, gain adjustment, or bias calibration in analog signal chains. ## Temperature range and drift Rated for -40°C to 85°C. The typical temperature coefficient is 50 ppm/°C. ## Sourcing — active, no LTB risk The MAX5400EKA+T carries an active lifecycle status and is ROHS3 compliant. There is no last-time-buy notice or obsolescence risk on this line.","metaTitle":"MAX5400EKA+T 50k SPI Digital Potentiometer, 256-Tap","metaDescription":"MAX5400EKA+T 50kΩ digital pot, 256 taps, SPI interface, 2.7V–5.5V supply, ±25% tolerance, -40°C to 85°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"SOT-PoT™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Taper":"Linear","Series":"SOT-PoT™","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"SPI","Tolerance":"±25%","Memory Type":"Volatile","Configuration":"Potentiometer","Mounting Type":"Surface Mount","Number of Taps":"256","Package / Case":"SOT-23-8","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 5.5V","Resistance (Ohms)":"50k","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"SOT-23-8","Temperature Coefficient (Typ)":"50ppm/°C","Resistance - Wiper (Ohms) (Typ)":"250"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.05","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.05000","currency":"USD"},{"qty":10,"price":"$2.74000","currency":"USD"},{"qty":25,"price":"$2.59080","currency":"USD"},{"qty":100,"price":"$2.24520","currency":"USD"},{"qty":250,"price":"$2.13008","currency":"USD"},{"qty":500,"price":"$1.91132","currency":"USD"},{"qty":1000,"price":"$1.61196","currency":"USD"},{"qty":2500,"price":"$1.53136","currency":"USD"},{"qty":5000,"price":"$1.47379","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX5400-MAX5401.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is MAX5400EKA+T a direct replacement for MAX5401EKA+T?","answer":"Yes, the two parts are pin-compatible and share the same 256-tap SPI interface, 50kΩ resistance, and SOT-23-8 package. The only difference is the power-on wiper position: MAX5400EKA+T defaults to mid-scale (tap 128), while MAX5401EKA+T defaults to zero-scale (tap 0). If your firmware initializes the wiper on boot, they are interchangeable."},{"question":"Can I use MAX5400EKA+T in a 3.3V system?","answer":"Yes. The supply voltage range is 2.7V to 5.5V, so 3.3V operation is within spec. SPI logic levels track the supply rail, so no level translation is needed when the host controller also runs at 3.3V."},{"question":"Is MAX5400EKA+T volatile or non-volatile?","answer":"Volatile. The wiper position is stored in registers that clear on power loss. On each power-up the wiper resets to mid-scale (tap 128). If a fixed startup state is required without firmware intervention, a non-volatile digital pot is the correct choice."},{"question":"What is the taper of MAX5400EKA+T?","answer":"Linear taper. The resistance between the wiper and either end terminal changes linearly with the tap position."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX5400EKAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX5400EKAT 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}}