{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX5477ETE+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX5477ETET","canonicalUrl":"https://icboms.com/analog-devices/MAX5477ETET","factsUrl":"https://icboms.com/api/mcp/products/MAX5477ETE%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX5477ETE+T dual digital potentiometer, 10kΩ, 256 taps, linear taper, I²C, non-volatile, 16-TQFN (3x3 mm), -40 to +85°C.","salesMarkdown":"## Two 10kΩ channels, 256 taps each, on one I²C bus The MAX5477ETE+T packs two independent digital potentiometers in a single 16-TQFN package. Each channel is a 10kΩ resistor string with 256 wiper positions, giving you about 39 Ω per step. The linear taper means the wiper resistance changes uniformly with the digital code — no log scaling, so the firmware math is straight-line interpolation. Both pots share the I²C interface, and the selectable address feature lets you put two of these on the same bus without address conflicts. That covers a four-channel trim/calibration block with one bus master and two ICs. ## Non-volatile wiper retention and thermal drift budget The wiper setting is stored in non-volatile memory — the pot powers up at the last programmed position, not mid-scale. For a bias voltage or threshold trim that must survive a power cycle, this saves a firmware restore routine. Temperature coefficient is 70 ppm/°C typical. Wiper resistance is 325 Ω typical. At the low end of the pot (code 0), the wiper adds this fixed series resistance. In a voltage divider, the output at zero code is not 0 V but a voltage divider between the wiper resistance and the load. Budget it into the transfer function if the application uses the bottom of the range. ## Package, supply, and board-fit notes The 0.5 mm pitch demands a via-in-pad or a tight via ring under the package; a two-layer board can work if the ground plane is on layer 2 and the vias are tented on the bottom side. The digital I²C pins are referenced to VDD — if the bus master runs at 3.3 V and the pot at 5 V, the logic levels are compatible, but the SDA/SCL pull-up resistors must be sized for the higher VDD. No level translator needed. Surface-mount package, supplied in tape and reel or cut tape. The ±25% tolerance on the end-to-end resistance means two channels on the same die can differ by up to 2.5 kΩ — for ratiometric applications this is fine, but for absolute resistance matching, plan for the spread.","metaTitle":"MAX5477ETE+T Dual 10kΩ 256-Tap I²C Digital Potentiometer","metaDescription":"Analog Devices MAX5477ETE+T dual 10kΩ digital potentiometer, 256 taps, I²C interface, linear taper, non-volatile. Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Taper":"Linear","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Selectable Address","Interface":"I²C","Tolerance":"±25%","Memory Type":"Non-Volatile","Configuration":"Potentiometer","Mounting Type":"Surface Mount","Number of Taps":"256","Package / Case":"16-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 5.25V","Resistance (Ohms)":"10k","Number of Circuits":"2","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"16-TQFN (3x3)","Temperature Coefficient (Typ)":"70ppm/°C","Resistance - Wiper (Ohms) (Typ)":"325"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.67","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.67000","currency":"USD"},{"qty":10,"price":"$5.09600","currency":"USD"},{"qty":25,"price":"$4.81760","currency":"USD"},{"qty":100,"price":"$4.17530","currency":"USD"},{"qty":250,"price":"$3.96120","currency":"USD"},{"qty":500,"price":"$3.55440","currency":"USD"},{"qty":1000,"price":"$2.99768","currency":"USD"},{"qty":2500,"price":"$2.84780","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the wiper resistance of the MAX5477ETE+T?","answer":"The wiper resistance is 325 Ω typical. This is a fixed series resistance present even at the lowest code setting. For precision divider applications, this offset must be included in the transfer function calculation."},{"question":"What is the taper of the MAX5477ETE+T?","answer":"The MAX5477ETE+T has a linear taper. The wiper resistance changes uniformly with the digital code, making it suitable for applications requiring a linear relationship between code and resistance, such as voltage dividers or programmable gain stages."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX5477ETET","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX5477ETET 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}}