{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AD5271BRMZ-20-RL7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"AD5271BRMZ-20-RL7","canonicalUrl":"https://icboms.com/analog-devices/AD5271BRMZ-20-RL7","factsUrl":"https://icboms.com/api/mcp/products/AD5271BRMZ-20-RL7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices AD5271BRMZ-20-RL7 digital potentiometer, 20 kΩ, 256 taps, SPI, non-volatile, ±1% tolerance, 5 ppm/°C tempco, 10-MSOP package.","salesMarkdown":"The AD5271BRMZ-20-RL7 is a single-channel, 256-tap digital potentiometer from Analog Devices, configured as a rheostat with a linear taper and a 20 kΩ end-to-end resistance. The SPI interface and cascade pin allow daisy-chaining multiple devices on the same bus, reducing the number of microcontroller GPIOs needed for multi-channel designs. Non-volatile memory stores the wiper position at power-off, eliminating the need for a host processor to re-initialize the setting on each power-up cycle — a practical advantage in systems where the microcontroller boots after the analog rail is stable. ## Resistance tolerance and temperature drift — the precision story The ±1% resistance tolerance is tighter than the ±20% typical of mechanical trimmers, reducing calibration overhead in production. For a 20 kΩ part, the end-to-end resistance is guaranteed within 19.8 kΩ to 20.2 kΩ. This is critical for precision analog circuits where a few ohms of drift would shift a voltage divider or filter cutoff frequency outside the specification window. The 35 Ω typical wiper resistance sets the floor for the lowest resistance setting. At digital code 0, the wiper-to-B terminal resistance is 35 Ω, not zero — a consideration for designs that need a true short circuit at the minimum code. ## Supply voltage flexibility and operating range Dual-supply operation allows the wiper voltage to swing bipolar, useful for AC signal conditioning or bipolar DAC reference trimming. The -40°C to +125°C operating temperature range qualifies the part for industrial and automotive environments — engine bay, outdoor telecom cabinets, or factory-floor sensor interfaces where the ambient temperature exceeds the commercial 85°C limit. The 10-MSOP package measures 3 mm × 3 mm with a 0.5 mm lead pitch. The fine pitch demands a controlled-impedance PCB process — standard 1 oz copper with 0.5 mm trace/space is adequate for signal routing, but the narrow pads require precise solder paste stencil alignment to avoid bridging. The tape-and-reel packaging is suited for automated pick-and-place assembly. The reel quantity is standard for the 10-MSOP form factor; confirm the exact reel count with the supplier at RFQ time. RoHS3 compliant with no exemptions, covering EU Directive 2015/863.","metaTitle":"AD5271BRMZ-20-RL7 Digital Potentiometer, 20kΩ, 256 Taps, SPI","metaDescription":"Analog Devices AD5271BRMZ-20-RL7 digital potentiometer: 20kΩ, 256 taps, SPI, non-volatile, ±1% tolerance, 5ppm/°C tempco, -40°C to +125°C, 10-MSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Taper":"Linear","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Cascade Pin","Interface":"SPI","Tolerance":"±1%","Memory Type":"Non-Volatile","Configuration":"Rheostat","Mounting Type":"Surface Mount","Number of Taps":"256","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 5.5V, ±2.5V ~ 2.75V","Resistance (Ohms)":"20k","Number of Circuits":"1","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"10-MSOP","Temperature Coefficient (Typ)":"5ppm/°C","Resistance - Wiper (Ohms) (Typ)":"35"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.76","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.76000","currency":"USD"},{"qty":1000,"price":"$1.92000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between AD5271BRMZ-20-RL7 and AD5271BCPZ-20-RL7?","answer":"The AD5271BCPZ-20-RL7 uses a 10-LFCSP package with an exposed thermal pad, while the AD5271BRMZ-20-RL7 uses a 10-MSOP package without an exposed pad. All electrical specifications — 20 kΩ resistance, 256 taps, SPI interface, ±1% tolerance, 5 ppm/°C tempco — are identical between the two variants. The LFCSP version offers better thermal dissipation for high-power or high-temperature applications."},{"question":"What is the wiper resistance at the lowest digital code?","answer":"The typical wiper resistance is 35 Ω at the lowest code (0). This means the wiper-to-B terminal resistance is 35 Ω, not a dead short. For applications requiring a true zero-ohm connection at the minimum setting, an external analog switch or relay should be considered."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/AD5271BRMZ-20-RL7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/AD5271BRMZ-20-RL7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}