{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1804U-050+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1804U-050","canonicalUrl":"https://icboms.com/analog-devices/DS1804U-050","factsUrl":"https://icboms.com/api/mcp/products/DS1804U-050%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DS1804U-050+, digital potentiometer, 50kΩ, 100 taps, linear taper, non-volatile, 2.7V-5.5V supply, -40°C to +85°C, 8-uMAX/uSOP surface-mount package.","salesMarkdown":"## What this digital pot is and where it fits The Maxim Integrated DS1804U-050+ is a single-channel, 100-tap digital potentiometer with a linear taper and 50 kΩ end-to-end resistance. It stores the wiper position in non-volatile memory, so the setting survives power loss without a backup EEPROM. The part operates from a 2.7 V to 5.5 V supply and is specified over the industrial temperature range of -40°C to +85°C. Typical applications include calibration trim in power supplies, sensor offset adjustment, and volume control in audio equipment where the linear taper is preferred. ## Linear taper and 100 taps — what they mean for the BOM The linear taper means the wiper resistance changes uniformly with each tap position — every step moves the resistance by 500 Ω (50 kΩ ÷ 100). That is predictable and repeatable, which is exactly what a calibration technician wants when trimming a reference voltage or setting a comparator threshold. The 100-tap resolution gives about 0.5% of full-scale per step, adequate for coarse-to-medium adjustment. If your design needs finer granularity, you step up to a 256-tap part; if you only need a few fixed levels, a lower-tap-count device saves cost. ## Non-volatile wiper — no separate memory needed Because the wiper position is stored in non-volatile memory, the DS1804U-050+ powers up at the last-set tap. That eliminates the need for a microcontroller to reload a calibration constant from an external EEPROM on every boot. The interface is a simple three-wire up/down control (U/D, INC, CS) — no SPI or I²C overhead. The wiper resistance is 400 Ω typical, which matters when the pot is used as a rheostat: that 400 Ω adds to the end-to-end resistance and limits the minimum resistance you can set. ## Package and temperature grade The DS1804U-050+ comes in an 8-pin uMAX/uSOP surface-mount package (3.00 mm body width). The -40°C to +85°C temperature range covers industrial control, outdoor telecom, and automotive cabin environments. The temperature coefficient is 750 ppm/°C typical — not a precision reference, but adequate for trimming applications where the absolute accuracy is set by an external reference or where the drift is calibrated out in system. ## Lifecycle and sourcing The Maxim DS1804 family includes other resistance values in the same pinout — but no direct pin-compatible alternate from another manufacturer is listed in the official cross-reference.","metaTitle":"DS1804U-050+ Digital Potentiometer, 50kΩ, 100-Tap, Linear","metaDescription":"Maxim DS1804U-050+ digital potentiometer: 50kΩ, 100 taps, linear taper, non-volatile, 2.7V-5.5V, -40°C to +85°C, 8-uMAX. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Taper":"Linear","Package":"Tube","Interface":"Up/Down (U/D, INC, CS)","Tolerance":"±20%","Memory Type":"Non-Volatile","Configuration":"Potentiometer","Mounting Type":"Surface Mount","Number of Taps":"100","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","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":"8-uMAX/uSOP","Temperature Coefficient (Typ)":"750ppm/°C","Resistance - Wiper (Ohms) (Typ)":"400"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.09","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.09000","currency":"USD"},{"qty":10,"price":"$4.56700","currency":"USD"},{"qty":25,"price":"$4.31760","currency":"USD"},{"qty":100,"price":"$3.74200","currency":"USD"},{"qty":250,"price":"$3.55016","currency":"USD"},{"qty":500,"price":"$3.18554","currency":"USD"},{"qty":1000,"price":"$2.68660","currency":"USD"},{"qty":2500,"price":"$2.55227","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/56d895d291ba13a030ade422b65102e0.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1804U-050","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1804U-050 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}}