{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADM1021ARQ-REEL","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADM1021ARQ-REEL","canonicalUrl":"https://icboms.com/analog-devices/ADM1021ARQ-REEL","factsUrl":"https://icboms.com/api/mcp/products/ADM1021ARQ-REEL","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADM1021ARQ-REEL, Temp Monitoring System (Sensor), ±1°C Local / ±5°C Remote, SMBus Output, 3V ~ 5.5V Supply, 16-SSOP (0.154\", 3.90mm Width), Surface Mount.","salesMarkdown":"## What this part is and where it fits The ADM1021ARQ-REEL is a temperature monitoring system from Analog Devices that combines an internal sensor and an external diode-connected transistor input to track two temperature zones. It integrates an ADC, comparator, multiplexer, and register bank on-chip, reporting results over an SMBus interface. Typical applications include microprocessor thermal management, desktop and notebook PCs, telecom line cards, and industrial controllers where the local die and a remote hot spot — like a CPU core or GPU — need simultaneous monitoring. The ±1°C local accuracy is tight enough for fan-speed control loops; the ±5°C remote channel is a threshold check, not a precision measurement. ## Temperature range — what it means for the BOM The operating temperature range is 0°C to 100°C. The remote sensor channel tracks an external diode over the same 0°C to 100°C window. ## Package and footprint Supplied in a 16-pin SSOP (0.154\" body width, 3.90 mm) — also referred to as a 16-QSOP in the supplier device package field. Surface-mount only. The Bulk shipping medium means the parts arrive in tubes or trays, not tape-and-reel.","metaTitle":"ADM1021ARQ-REEL Temp Sensor, ±1°C Local / ±5°C Remote, SMBus","metaDescription":"ADM1021ARQ-REEL temperature monitoring system from Analog Devices. ±1°C local, ±5°C remote accuracy. SMBus output, 3V–5.5V supply.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Accuracy":"±1°C Local, ±5°C Remote","Function":"Temp Monitoring System (Sensor)","Topology":"ADC, Comparator, Multiplexer, Register Bank","Output Fan":"No","Output Type":"SMBus","Sensor Type":"Internal and External","Output Alarm":"Yes","Mounting Type":"Surface Mount","Package / Case":"16-SSOP (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Sensing Temperature":"0°C ~ 100°C, External Sensor","Operating Temperature":"0°C ~ 100°C","Supplier Device Package":"16-QSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.76","stockQuantity":0,"priceTiers":[{"qty":396,"price":"$0.76000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9ca7770d91e1928aedf721e2b43f8020.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the accuracy of ADM1021ARQ-REEL?","answer":"±1°C for the local (internal) sensor and ±5°C for the remote (external diode) channel."},{"question":"Is ADM1021ARQ-REEL compatible with 5V SMBus?","answer":"Yes. The supply range is 3 V to 5.5 V, so the SMBus interface operates directly at 5 V logic levels with appropriately sized pull-up resistors."},{"question":"What is the difference between ADM1021ARQ and ADM1021ARQ-REEL?","answer":"The base die and functionality are identical. The -REEL suffix indicates a specific shipping quantity variant (Bulk); the ADM1021ARQ (non-reel) shares the same specs and footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADM1021ARQ-REEL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADM1021ARQ-REEL 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}}