{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX31855KASA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX31855KASA","canonicalUrl":"https://icboms.com/analog-devices/MAX31855KASA","factsUrl":"https://icboms.com/api/mcp/products/MAX31855KASA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX31855KASA+, Thermocouple to Digital Converter, Input Type Thermocouple (Multiple), Output Type Digital, Supply Current 900 µA, Operating Temperature -40°C ~ 125°C, Package / Case 8-SOIC, Surface Mount, Tube.","salesMarkdown":"## Cold-junction compensated thermocouple digitizer in an 8-SOIC The Analog Devices MAX31855KASA+ is a thermocouple-to-digital converter that directly digitizes the signal from a thermocouple, performing cold-junction compensation and linearization internally. It accepts multiple thermocouple types, outputs the temperature reading in digital format, and draws 900 µA from the supply. The device operates across the full -40°C to 125°C temperature range, making it suitable for industrial process control, engine monitoring, and HVAC equipment where the converter sits on the same board as the hot junction. ## Supply current and temperature range — what they mean for the BOM The 900 µA supply current is the total device draw including the internal cold-junction compensation and conversion logic. ## Package and mounting — footprint and handling Housed in an 8-SOIC package with a 0.154-inch body width (3.90 mm), the MAX31855KASA+ is a surface-mount device. The SOIC-8 footprint is a standard, low-cost layout that routes easily on two-layer boards. ## Lifecycle and compliance — active production, no end-of-life watch The MAX31855KASA+ carries an Active product status with ROHS3 compliance. For BOM planning, the active status means no forced redesign from obsolescence in the near term, and the ROHS3 declaration covers EU and global regulatory requirements without an exemption expiry date.","metaTitle":"MAX31855KASA+ Thermocouple to Digital Converter, 8-SOIC","metaDescription":"MAX31855KASA+ thermocouple-to-digital converter from Analog Devices. 900 µA supply, -40°C to 125°C range, 8-SOIC. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Thermocouple to Digital Converter","Package":"Tube","Input Type":"Thermocouple (Multiple)","Output Type":"Digital","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"900 µA","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"8-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.83","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.83000","currency":"USD"},{"qty":10,"price":"$9.78000","currency":"USD"},{"qty":25,"price":"$9.32480","currency":"USD"},{"qty":100,"price":"$8.09660","currency":"USD"},{"qty":250,"price":"$7.73272","currency":"USD"},{"qty":500,"price":"$7.05040","currency":"USD"},{"qty":1000,"price":"$6.82298","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a8894ed6fd42663a0bd641cedbad8180.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is MAX31855KASA+ compatible with K-type thermocouples?","answer":"Yes, the MAX31855KASA+ accepts multiple thermocouple types including K-type. The device performs cold-junction compensation and linearization for the connected thermocouple type automatically."},{"question":"Is MAX31855KASA+ RoHS compliant?","answer":"Yes, the MAX31855KASA+ is ROHS3 Compliant, meeting the latest EU RoHS directive without exemptions."},{"question":"What is the difference between MAX31855KASA+ and MAX6675?","answer":"The MAX31855 family supports multiple thermocouple types (K, J, N, T, S, R, E, B) and includes a wider temperature range and higher resolution compared to the MAX6675, which is a K-type-only converter. The MAX31855KASA+ also operates down to -40°C versus the MAX6675's 0°C lower limit, making it suitable for cold-junction environments below freezing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX31855KASA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX31855KASA 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}}