{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AD7818ARZ-REEL7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"AD7818ARZ-REEL7","canonicalUrl":"https://icboms.com/analog-devices/AD7818ARZ-REEL7","factsUrl":"https://icboms.com/api/mcp/products/AD7818ARZ-REEL7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices AD7818ARZ-REEL7, Digital Local Temperature Sensor, 10 b Resolution, SPI Output, 2.7V to 5.5V Supply, -55°C to 125°C Operating Temperature, 8-SOIC Package, Tape & Reel.","salesMarkdown":"## Temperature range and operating environment The AD7818ARZ-REEL7 is specified for an operating temperature range of -55°C to 125°C, which covers military and automotive under-hood environments. The local sensing range is -40°C to 85°C, meaning the die itself must stay within that window for accurate measurement, but the device can survive storage and non-operating exposure down to -55°C and up to 125°C. This makes it a candidate for outdoor telecom cabinets, engine compartments, and avionics bays where the ambient can swing well beyond commercial limits. The 8-SOIC package is surface-mount, so board-level conformal coating is straightforward if condensation is a concern. ## Lifecycle and sourcing It is ROHS3 compliant, so it meets current EU and global material restrictions. For dual-sourcing or a pin-compatible alternate, the AD7814ARTZ-REEL7 is a close functional match — also a 10-bit digital local sensor with SPI output — but its accuracy spec differs slightly (±2°C typical, ±3.5°C maximum) and its sensing range extends to -55°C to 125°C. The AD7418ARMZ and AD7416ARZ-REEL7 are I²C-interface siblings, not SPI, so a bus-protocol change would be needed if swapping.","metaTitle":"AD7818ARZ-REEL7 10-bit Digital Temperature Sensor, SPI","metaDescription":"AD7818ARZ-REEL7 digital temperature sensor, 10-bit resolution, SPI output, ±2°C accuracy, -55°C to 125°C range. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Output Switch","Resolution":"10 b","Output Type":"SPI","Sensor Type":"Digital, Local","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Test Condition":"25°C (-40°C ~ 85°C)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 5.5V","Operating Temperature":"-55°C ~ 125°C","Supplier Device Package":"8-SOIC","Accuracy - Highest (Lowest)":"±2°C (±3°C)","Sensing Temperature - Local":"-40°C ~ 85°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.27","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.27000","currency":"USD"},{"qty":10,"price":"$9.27600","currency":"USD"},{"qty":25,"price":"$8.84400","currency":"USD"},{"qty":100,"price":"$7.67930","currency":"USD"},{"qty":250,"price":"$7.33416","currency":"USD"},{"qty":500,"price":"$6.68700","currency":"USD"},{"qty":1000,"price":"$6.10500","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/AD7817_7818.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is AD7818ARZ-REEL7 compatible with 3.3V microcontrollers?","answer":"Yes. The supply range is 2.7 V to 5.5 V, so it runs directly on a 3.3 V rail. The SPI output logic levels track the supply voltage — at 3.3 V VDD, the output high is above 2.0 V, which meets 3.3 V CMOS input thresholds."},{"question":"What is the closest functional second-source for AD7818ARZ-REEL7?","answer":"The AD7814ARTZ-REEL7 is the nearest SPI-interface, 10-bit digital temperature sensor. It has a slightly wider accuracy spec (±3.5°C max vs ±3°C) and a full -55°C to 125°C local sensing range. The AD7418ARMZ and AD7416ARZ-REEL7 are I²C parts — not drop-in replacements without a bus-protocol change."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/AD7818ARZ-REEL7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/AD7818ARZ-REEL7 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}}