{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1859E-050+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1859E-050","canonicalUrl":"https://icboms.com/analog-devices/DS1859E-050","factsUrl":"https://icboms.com/api/mcp/products/DS1859E-050%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DS1859E-050+, dual 50kΩ digital rheostat, 256 taps, Linear taper, I²C interface, Non-Volatile memory, 2.85V–5.5V supply, -40°C to +95°C, 16-TSSOP package.","salesMarkdown":"## Dual 50 kΩ rheostat with non-volatile wiper storage The DS1859E-050+ from Maxim Integrated is a dual-channel digital rheostat with a 50 kΩ end-to-end resistance and 256 tap positions per channel. Each channel operates as a two-terminal variable resistor — the wiper position is stored in non-volatile memory, so the setting holds through a power cycle without host intervention. The part communicates over an I²C bus and includes a local temperature sensor, letting a controller read die temperature and adjust the wiper for compensation. The linear taper suits voltage-divider and current-bias trimming in bias supplies, sensor offset adjust, and laser-driver calibration circuits. Supply range is 2.85 V to 5.5 V, and the operating temperature covers -40°C to +95°C for industrial and telecom environments. ## Integrated temperature sensor — a differentiator for thermal-drift compensation The on-chip temperature sensor is readable over the same I²C bus. In an optical-module bias circuit or a precision voltage reference, the host can read the die temperature and adjust the wiper to counteract the 50 ppm/°C temperature coefficient of the resistance element. This closed-loop compensation keeps the set point stable across the -40°C to +95°C range without an external thermistor or ADC channel.","metaTitle":"DS1859E-050+ Digital Potentiometer, 50kΩ, 256 Taps, I²C","metaDescription":"DS1859E-050+ dual 50kΩ digital rheostat with 256 taps, I²C interface, non-volatile memory, and integrated temperature sensor.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Taper":"Linear","Package":"Tube","Features":"Selectable Address, Temperature Sensor","Interface":"I²C","Tolerance":"±20%","Memory Type":"Non-Volatile","Configuration":"Rheostat","Mounting Type":"Surface Mount","Number of Taps":"256","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.85V ~ 5.5V","Resistance (Ohms)":"50k","Number of Circuits":"2","Operating Temperature":"-40°C ~ 95°C","Supplier Device Package":"16-TSSOP","Temperature Coefficient (Typ)":"50ppm/°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.17","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.17000","currency":"USD"},{"qty":10,"price":"$7.38300","currency":"USD"},{"qty":25,"price":"$7.03960","currency":"USD"},{"qty":100,"price":"$6.11250","currency":"USD"},{"qty":250,"price":"$5.83780","currency":"USD"},{"qty":500,"price":"$5.32270","currency":"USD"},{"qty":1000,"price":"$4.63590","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/DS1859.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the DS1859E-050+?","answer":"Within the same DS1859 family, the resistance value is the primary differentiator — the DS1859E-010+ (10 kΩ) and DS1859E-100+ (100 kΩ) share the same 16-TSSOP footprint, I²C interface, and feature set. Select the variant whose end-to-end resistance matches your bias or divider network."},{"question":"Does the DS1859E-050+ have a linear or logarithmic taper?","answer":"The taper is Linear, making it suitable for voltage-divider and current-bias trimming rather than audio volume control."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1859E-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/DS1859E-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}}