{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS1834AS+T&R","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS1834ASTR","canonicalUrl":"https://icboms.com/analog-devices/DS1834ASTR","factsUrl":"https://icboms.com/api/mcp/products/DS1834AS%2BT%26R","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DS1834AS+T&R EconoReset Multi-Voltage Supervisor, 2-channel, active-low open-drain output, 3.3V/5V thresholds, 200ms min reset timeout, -40°C to 85°C, 8-SOIC package.","salesMarkdown":"## Dual-rail supervisor for mixed-voltage boards The Maxim Integrated DS1834AS+T&R is a multi-voltage supervisor from the EconoReset family that monitors two supply rails — 3.3V and 5V — with a single active-low, open-drain output. It asserts reset when either rail drops below its threshold and holds reset for a minimum of 200ms after both rails recover. This part is intended for systems that need a simple, low-cost way to sequence or protect mixed-voltage logic, such as industrial controllers, telecom line cards, and embedded processor boards where a single supervisor IC replaces two discrete reset circuits. ## 200ms reset timeout — what it means for system startup The 200ms minimum reset timeout gives the power supplies and oscillators time to settle before the processor or FPGA comes out of reset. For a typical MCU with a crystal oscillator that needs 10–50 ms to stabilize, 200 ms provides comfortable margin. If the system has a fast-starting internal RC oscillator, the 200 ms delay may be longer than needed, but it does not cause harm — the processor simply waits. The timeout is not adjustable, so designs that require a shorter or longer reset pulse need a different supervisor or an external timer. ## Industrial temperature range and package Rated for -40°C to 85°C ambient, the DS1834AS+T&R suits factory-floor automation, outdoor telecom cabinets, and engine-bay-adjacent electronics that see temperature swings. The 8-SOIC package (3.90 mm body width) is a common footprint shared with many industry-standard supervisors, making PCB layout straightforward and second-source placement easy. Surface-mount assembly is standard; no special reflow profile beyond the usual lead-free solder process is needed. ## Sourcing and lifecycle It is RoHS3 compliant. No LTB risk or last-time-buy window is in effect.","metaTitle":"DS1834AS+T&R Multi-Voltage Supervisor, 3.3V/5V, 200ms","metaDescription":"DS1834AS+T&R EconoReset supervisor monitors 3.3V and 5V rails, active-low open-drain output, 200ms min reset timeout, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"EconoReset","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Multi-Voltage Supervisor","Reset":"Active Low","Output":"Open Drain or Open Collector","Series":"EconoReset","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"200ms Minimum","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Threshold":"3.3V, 5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC","Number of Voltages Monitored":"2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.32","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.32000","currency":"USD"},{"qty":10,"price":"$2.98100","currency":"USD"},{"qty":25,"price":"$2.81800","currency":"USD"},{"qty":100,"price":"$2.44220","currency":"USD"},{"qty":250,"price":"$2.31696","currency":"USD"},{"qty":500,"price":"$2.07898","currency":"USD"},{"qty":1000,"price":"$1.75336","currency":"USD"},{"qty":2500,"price":"$1.66569","currency":"USD"},{"qty":5000,"price":"$1.60307","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/98811801279889c5111f4c2bbe016693.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the DS1834AS+T&R reset timeout?","answer":"The reset timeout is a minimum of 200ms. The supervisor holds the reset output low for at least 200ms after all monitored voltages rise above their thresholds."},{"question":"What is the DS1834AS+T&R operating temperature range?","answer":"The operating temperature range is -40°C to 85°C ambient, suitable for industrial environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS1834ASTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS1834ASTR 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}}