{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS3902U-530+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS3902U-530","canonicalUrl":"https://icboms.com/analog-devices/DS3902U-530","factsUrl":"https://icboms.com/api/mcp/products/DS3902U-530%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DS3902U-530+ dual digital rheostat, 256 taps, 30k/50k Ohm, Linear taper, I²C, Non-Volatile, 8-uMAX/uSOP, Tube.","salesMarkdown":"## Dual 30k/50k digital rheostat — 256-tap I²C trimmer The DS3902U-530+ is a dual-channel digital potentiometer from Analog Devices, configured as a rheostat with 256 taps per channel. One channel is 30 kΩ, the other 50 kΩ — both with linear taper, so the wiper resistance changes linearly with the digital code. The non-volatile memory retains the wiper position after power-off, eliminating the need for a re-initialization routine on each power-up. The I²C interface with selectable address allows up to eight DS3902 devices on the same bus without address conflict, which is handy when multiple calibration points share a two-wire bus. ## Industrial temperature range and package fit Rated for -40°C to +95°C operating ambient, the DS3902U-530+ suits factory-floor or outdoor equipment enclosures where temperature swings are common. The ±20% tolerance on the absolute resistance value means the end-to-end resistance can vary by 20% from lot to lot, but the wiper ratio (256 steps) is accurate. The ±300 ppm/°C temperature coefficient adds about 0.03% drift per °C — acceptable for trimming loops but not for precision references.","metaTitle":"Analog Devices DS3902U-530+ Digital Potentiometer, 256 Taps","metaDescription":"DS3902U-530+ from Analog Devices: dual 30k/50k Ohm digital rheostat, 256 taps, I²C interface, non-volatile, -40°C to +95°C, ROHS3. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Taper":"Linear","Package":"Tube","Features":"Selectable Address","Interface":"I²C","Tolerance":"±20%","Memory Type":"Non-Volatile","Configuration":"Rheostat","Mounting Type":"Surface Mount","Number of Taps":"256","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.4V ~ 5.5V","Resistance (Ohms)":"30k, 50k","Number of Circuits":"2","Operating Temperature":"-40°C ~ 95°C","Supplier Device Package":"8-uMAX/uSOP","Temperature Coefficient (Typ)":"±300ppm/°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.89","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.89000","currency":"USD"},{"qty":10,"price":"$2.59600","currency":"USD"},{"qty":25,"price":"$2.45440","currency":"USD"},{"qty":100,"price":"$2.12710","currency":"USD"},{"qty":250,"price":"$2.01800","currency":"USD"},{"qty":500,"price":"$1.81072","currency":"USD"},{"qty":1000,"price":"$1.52712","currency":"USD"},{"qty":2500,"price":"$1.45076","currency":"USD"},{"qty":5000,"price":"$1.39622","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the DS3902U-530+'s taper and resistance range?","answer":"The DS3902U-530+ has a linear taper. It contains two independent rheostats: one 30 kΩ and one 50 kΩ, each with 256 taps. The linear taper means the wiper resistance changes linearly with the digital code, which is standard for most analog trimming and calibration loops."},{"question":"What compliance documentation does Analog Devices provide for DS3902U-530+?","answer":"The DS3902U-530+ is ROHS3 compliant per the latest EU directive."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS3902U-530","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS3902U-530 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}}