{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AD8402ARUZ100-REEL","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"AD8402ARUZ100-REEL","canonicalUrl":"https://icboms.com/analog-devices/AD8402ARUZ100-REEL","factsUrl":"https://icboms.com/api/mcp/products/AD8402ARUZ100-REEL","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices AD8402ARUZ100-REEL, dual 100k digital potentiometer, 256 taps, SPI interface, linear taper, 14-TSSOP, Tape & Reel.","salesMarkdown":"The AD8402ARUZ100-REEL: ROHS3 compliant, so it passes EU material restrictions without an exemption — no separate waiver documentation needed for the BOM. ## 100k, 256 taps, SPI — the BOM-fit parametrics 100 kΩ end-to-end resistance with 256 wiper taps per circuit — the resolution is 390 Ω per step, which sets the smallest adjustable increment in a voltage-divider or programmable-gain application. Two independent potentiometer circuits in the same 14-TSSOP package — one chip replaces two single-channel digipots, saving board area and reducing the SPI chip-select count. Linear taper means the wiper resistance changes proportionally with the digital code — the resistance between wiper and B terminal is (code/256) × R_AB. This is the standard for programmable voltage dividers and op-amp gain-setting; it is not a logarithmic (audio) taper. ±30% tolerance on the 100 kΩ end-to-end resistance means the actual R_AB can range from 70 kΩ to 130 kΩ. The ratiometric accuracy (step-to-step matching) is tighter than the absolute tolerance, so the divider ratio is more repeatable than the absolute resistance. If the BOM needs a precise absolute resistance, plan for a calibration step or use the part in a ratiometric configuration. Wiper resistance is 200 Ω typical — this adds in series with the selected tap resistance and matters most at the lowest codes where the wiper-to-B resistance is small. ## Industrial temperature grade and package The 500 ppm/°C temperature coefficient means the resistance drifts by 50 Ω per 100°C, which is acceptable for most trimming and calibration loops but may need derating in precision references. 14-TSSOP package with 0.65 mm pin pitch — the standard fine-pitch SOIC footprint. The supplier device package is also 14-TSSOP, so no footprint mismatch between the order code and the physical part. ## Cross-reference notes — peer variants The AD8402ARUZ100 (tube packaging) is the same die and electrical spec — the only difference is the shipping medium. The AD8402ARZ100-REEL is also electrically identical but uses a different package suffix (ARZ vs ARUZ), which may indicate a different lead-frame or plating; confirm the package drawing before substituting.","metaTitle":"AD8402ARUZ100-REEL digital pot, 100k, 256 taps, SPI","metaDescription":"Active-production AD8402ARUZ100-REEL from Analog Devices: 100k linear-taper digital potentiometer, 256 taps, SPI interface, 2 circuits, 14-TSSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Taper":"Linear","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"SPI","Tolerance":"±30%","Memory Type":"Volatile","Configuration":"Potentiometer","Mounting Type":"Surface Mount","Number of Taps":"256","Package / Case":"14-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 5.5V","Resistance (Ohms)":"100k","Number of Circuits":"2","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"14-TSSOP","Temperature Coefficient (Typ)":"500ppm/°C","Resistance - Wiper (Ohms) (Typ)":"200"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.53","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.53000","currency":"USD"},{"qty":10,"price":"$5.86500","currency":"USD"},{"qty":25,"price":"$5.54480","currency":"USD"},{"qty":100,"price":"$4.80560","currency":"USD"},{"qty":250,"price":"$4.55912","currency":"USD"},{"qty":500,"price":"$4.09090","currency":"USD"},{"qty":1000,"price":"$3.45016","currency":"USD"},{"qty":2500,"price":"$3.27765","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for AD8402ARUZ100-REEL?","answer":"The AD8402ARUZ100 (tube) is electrically identical — same 100 kΩ, 256 taps, SPI, linear taper. The AD8402ARZ100-REEL is also electrically the same but uses a different package suffix; verify the package drawing for footprint compatibility before substituting."},{"question":"Will AD8402ARUZ100-REEL drop into a board designed for AD8402ARUZ100 without rewiring?","answer":"Yes — the AD8402ARUZ100 and AD8402ARUZ100-REEL share the same die, pinout, and 14-TSSOP package. The only difference is the shipping medium (tube vs tape & reel). No board spin or rewiring is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/AD8402ARUZ100-REEL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/AD8402ARUZ100-REEL 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}}