{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX5438EUB+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX5438EUB","canonicalUrl":"https://icboms.com/analog-devices/MAX5438EUB","factsUrl":"https://icboms.com/api/mcp/products/MAX5438EUB%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX5438EUB+, digital potentiometer, linear taper, 100kΩ resistance, 128 taps, SPI interface, volatile memory, single circuit, 10-uMAX/uSOP package, -40°C to +85°C, ROHS3 compliant.","salesMarkdown":"## What this part is and where it fits The MAX5438EUB+ is a single-channel, 128-tap digital potentiometer with a linear taper and 100kΩ end-to-end resistance. It is controlled via an SPI interface. ## Key ratings and what they mean for the BOM The 100kΩ resistance is a common value for audio level control, offset adjustment, and programmable reference dividers. The linear taper means wiper resistance changes linearly with the digital code. ## Lifecycle and sourcing posture The MAX5438EUB+ carries an Active lifecycle status and is ROHS3 compliant. The 10-uMAX/uSOP package (3mm x 3mm body, 0.118\" width) is a standard footprint shared with other Maxim digital pots, so second-source options exist within the family if needed.","metaTitle":"MAX5438EUB+ Digital Potentiometer, 100kΩ, 128 Taps, SPI","metaDescription":"MAX5438EUB+ 100kΩ digital pot, 128 taps, linear taper, SPI, ±25% tolerance, -40°C to +85°C, 10-uMAX. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Taper":"Linear","Package":"Tube","Interface":"SPI","Tolerance":"±25%","Memory Type":"Volatile","Configuration":"Potentiometer","Mounting Type":"Surface Mount","Number of Taps":"128","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"10V ~ 30V, ±5V ~ 15V","Resistance (Ohms)":"100k","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"10-uMAX/uSOP","Temperature Coefficient (Typ)":"35ppm/°C","Resistance - Wiper (Ohms) (Typ)":"900"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.99","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.99000","currency":"USD"},{"qty":10,"price":"$9.92400","currency":"USD"},{"qty":25,"price":"$9.46200","currency":"USD"},{"qty":100,"price":"$8.21590","currency":"USD"},{"qty":250,"price":"$7.84668","currency":"USD"},{"qty":500,"price":"$7.15434","currency":"USD"},{"qty":1000,"price":"$6.23120","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a21a497878c04be336e24d7abbc87be0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between MAX5438EUB+ and MAX5438EUB+T?","answer":"The difference is the packaging and shipping medium: MAX5438EUB+ ships in a Tube, while the MAX5438EUB+T suffix indicates Tape & Reel packaging. The die, electrical specs, and package (10-uMAX/uSOP) are identical."},{"question":"What is the taper of the MAX5438EUB+?","answer":"The taper is Linear. The wiper resistance changes linearly with the digital code, suitable for calibration and divider applications but not for logarithmic audio volume control."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX5438EUB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX5438EUB 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}}