{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1803E-050+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1803E-050","canonicalUrl":"https://icboms.com/analog-devices/DS1803E-050","factsUrl":"https://icboms.com/api/mcp/products/DS1803E-050%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DS1803E-050+, dual 50kΩ digital potentiometer, 256 taps, linear taper, I²C interface, selectable address, 14-TSSOP package, -40°C to 85°C.","salesMarkdown":"## Dual 50kΩ digital potentiometer with I²C control The Maxim Integrated DS1803E-050+ is a dual-channel, 256-tap digital potentiometer with a linear taper, 50kΩ end-to-end resistance, and I²C interface. Each of the two independent potentiometer circuits provides 256 wiper positions, giving fine granularity for volume control, gain trimming, or offset adjustment in mixed-signal designs. The part operates from a 2.7V to 5.5V supply, suiting both 3.3V and 5V logic rails. Housed in a 14-TSSOP surface-mount package, it includes a selectable address feature that allows up to two devices on the same I²C bus without address conflicts. ## What the key ratings mean for your BOM The 256 taps per channel give a step size of roughly 195Ω per tap (50kΩ / 256), which is fine enough for most audio level-setting and calibration loops. The linear taper means wiper resistance changes linearly with digital code—straightforward for firmware mapping, but not the right choice if you need a logarithmic (audio) taper for volume control. The 750ppm/°C temperature coefficient means the absolute resistance can drift about 3.75% over a 50°C swing; if your application needs stable gain over temperature, plan for that drift or consider a lower-tempco part. The wiper resistance of 400Ω typical adds a small series offset—negligible for high-impedance loads but worth factoring into divider ratios. The ±20% tolerance on the end-to-end resistance is typical for digital pots; it does not affect the ratiometric accuracy of the divider, only the absolute resistance. ## Lifecycle and supply posture It is ROHS3 compliant. For BOM planning, this part is a standard active line item—no LTB risk, no forced redesign.","metaTitle":"DS1803E-050+ Digital Potentiometer","metaDescription":"DS1803E-050+ dual 50kΩ digital potentiometer with 256 taps, I²C interface, linear taper. Active, industrial temp -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Taper":"Linear","Package":"Tube","Features":"Selectable Address","Interface":"I²C","Tolerance":"±20%","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)":"50k","Number of Circuits":"2","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"14-TSSOP","Temperature Coefficient (Typ)":"750ppm/°C","Resistance - Wiper (Ohms) (Typ)":"400"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.58","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.58000","currency":"USD"},{"qty":10,"price":"$7.75200","currency":"USD"},{"qty":25,"price":"$7.39160","currency":"USD"},{"qty":100,"price":"$6.41810","currency":"USD"},{"qty":250,"price":"$6.12968","currency":"USD"},{"qty":500,"price":"$5.58884","currency":"USD"},{"qty":1000,"price":"$4.86770","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/DS1803.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1803E-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/DS1803E-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}}