{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADM1026JST","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADM1026JST","canonicalUrl":"https://icboms.com/analog-devices/ADM1026JST","factsUrl":"https://icboms.com/api/mcp/products/ADM1026JST","rawCanonicalId":null},"summary":{"shortDescription":"ADI ADM1026JST Hardware Monitor, ±3°C accuracy, ADC/Comparator/Multiplexer/Register Bank topology, SMBus output, internal and external sensor support, fan output, 3V–5.5V supply, 48-LQFP surface mount.","salesMarkdown":"## What this part is and what it does The Analog Devices ADM1026JST is a hardware monitor IC that integrates an ADC, comparator, multiplexer, and register bank to track system temperatures from both an internal sensor and up to two external diode-connected transistors. It also drives a fan output and communicates over SMBus, making it a single-chip thermal management solution for servers, telecom equipment, and industrial controllers where keeping a fan curve matched to die temperature matters. ## Package and mounting The ±3°C maximum accuracy covers the 0°C to 100°C sensing range, including the internal sensor and external diode path. ## Package and rework: 48-LQFP (7x7) The 48-LQFP with a 7x7 mm body is a standard fine-pitch QFP. ## Lifecycle and sourcing The ADM1026JST is listed as Active with no end-of-life notice. No last-time-buy pressure. The part is RoHS non-compliant, so if your BOM requires RoHS, factor in an exemption or look at the ADM1027ARQ (which is RoHS-compliant and offers tighter accuracy).","metaTitle":"ADM1026JST Hardware Monitor, ±3°C Accuracy, 48-LQFP","metaDescription":"ADI ADM1026JST hardware monitor with internal/external sensors, SMBus output, fan control. ±3°C max accuracy, 3V–5.5V supply, 48-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Accuracy":"±3°C(Max)","Function":"Hardware Monitor","Topology":"ADC, Comparator, Multiplexer, Register Bank","Output Fan":"Yes","Output Type":"SMBus","Sensor Type":"Internal and External","Output Alarm":"No","Mounting Type":"Surface Mount","Package / Case":"48-LQFP","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Sensing Temperature":"0°C ~ 100°C","Operating Temperature":"0°C ~ 100°C","Supplier Device Package":"48-LQFP (7x7)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.94","stockQuantity":0,"priceTiers":[{"qty":38,"price":"$7.94000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/893d97a7194491ec7adfc2973b85cd89.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement or equivalent for ADM1026JST?","answer":"The closest functional equivalent is the ADM1027ARQ, which shares the same SMBus interface, internal/external sensor support, and fan output, but offers ±1°C accuracy (vs ±3°C) and a wider 0°C to 105°C operating range. The ADM1027ARQ is also RoHS-compliant, while the ADM1026JST is not. The ADM1028ARQ is another alternative with similar accuracy but no comparator or multiplexer topology."},{"question":"What is ADM1026JST's listed accuracy?","answer":"The ADM1026JST has a maximum accuracy of ±3°C across its 0°C to 100°C sensing range, covering both the internal sensor and external diode inputs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADM1026JST","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADM1026JST 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}}