{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1809U-100+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1809U-100","canonicalUrl":"https://icboms.com/analog-devices/DS1809U-100","factsUrl":"https://icboms.com/api/mcp/products/DS1809U-100%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices Dallastat™ digital potentiometer, DS1809U-100+, 64-tap linear taper, 100 kΩ resistance, pushbutton interface, non-volatile memory, 8-uMAX package, -40°C to +85°C.","salesMarkdown":"## 64-tap linear digital pot with pushbutton control The DS1809U-100+ is a 64-tap linear-taper digital potentiometer from the Analog Devices Dallastat series, offering 100 kΩ end-to-end resistance in a single-circuit configuration. Each of the 64 taps increments the wiper position by an equal 1.56 kΩ step, making it suitable for voltage-divider adjustment, gain trimming, or setting a reference level in a 5 V signal chain. The pushbutton interface allows direct operator control — two buttons (up/down) adjust the wiper without needing a microcontroller or serial bus, which simplifies the BOM in panel-mounted or manually calibrated equipment. ## Non-volatile wiper retention and industrial temperature range The wiper position is stored in non-volatile memory, so the setting persists through power cycles — no boot-time re-initialization routine is required, which matters for equipment that must resume its last calibration state after a power loss. The 750 ppm/°C temperature coefficient means the end-to-end resistance drifts roughly 0.75% per 10°C — this is typical for CMOS digital pots and is acceptable for trimming applications where the divider ratio, not the absolute resistance, is the controlled parameter. ## Package, supply, and wiper resistance considerations Housed in the 8-uMAX/uSOP package (3×3 mm footprint, 0.118-inch body width), the DS1809U-100+ is a compact surface-mount device that fits on space-constrained PCBs alongside other 8-pin logic or analog parts. Operates from a single 5 V supply rail, matching legacy 5 V logic systems — no additional level translator is needed when the pushbutton inputs are driven by a 5 V MCU or mechanical switches with pull-up resistors. The maximum wiper resistance is 400 Ω — this on-resistance of the internal analog switch adds a series offset that must be factored into the divider ratio calculation, especially at low tap positions where the wiper-to-ground resistance is small. End-to-end resistance tolerance is ±20%, so the absolute current drawn through the potentiometer varies by up to 20% from part to part — the divider ratio accuracy is better than this, but the absolute resistance is not tightly controlled. ## Active lifecycle and compliance status ROHS3 compliant, meeting the latest EU restriction-of-hazardous-substances directive — no exemption-based compliance gap to manage in the supply chain.","metaTitle":"Analog Devices DS1809U-100+ Digital Pot, 64 Tap, 100kΩ, 5V","metaDescription":"DS1809U-100+ from Analog Devices: 64-tap linear digital potentiometer, 100 kΩ, pushbutton interface, non-volatile memory, -40°C to +85°C, 8-uMAX package.","metaKeywords":null},"attributes":{"series":"Dallastat™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Taper":"Linear","Series":"Dallastat™","Package":"Tube","Interface":"Pushbutton","Tolerance":"±20%","Memory Type":"Non-Volatile","Configuration":"Potentiometer","Mounting Type":"Surface Mount","Number of Taps":"64","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"5V","Resistance (Ohms)":"100k","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"8-uMAX/uSOP","Temperature Coefficient (Typ)":"750ppm/°C","Resistance - Wiper (Ohms) (Typ)":"400 (Max)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.94","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.94000","currency":"USD"},{"qty":10,"price":"$5.33600","currency":"USD"},{"qty":25,"price":"$5.04480","currency":"USD"},{"qty":100,"price":"$4.37230","currency":"USD"},{"qty":250,"price":"$4.14808","currency":"USD"},{"qty":500,"price":"$3.72206","currency":"USD"},{"qty":1000,"price":"$3.13908","currency":"USD"},{"qty":2500,"price":"$2.98213","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the taper of the DS1809U-100+?","answer":"The DS1809U-100+ has a linear taper, meaning each of the 64 tap positions changes the resistance by the same increment (approximately 1.56 kΩ per step). This is the standard choice for voltage-divider and gain-setting applications, as opposed to an audio-taper pot which uses a logarithmic curve."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1809U-100","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1809U-100 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}}