{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISL21080CIH325Z-TK","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"ISL21080CIH325Z-TK","canonicalUrl":"https://icboms.com/renesas/ISL21080CIH325Z-TK","factsUrl":"https://icboms.com/api/mcp/products/ISL21080CIH325Z-TK","rawCanonicalId":null},"summary":{"shortDescription":"Renesas FGA™ series voltage reference, ISL21080CIH325Z-TK, 2.5V fixed output, ±0.3% tolerance, 1.5µA supply, SOT-23-3, Tape & Reel.","salesMarkdown":"## What the 1.5 µA supply current means for your battery budget The Renesas ISL21080CIH325Z-TK is a FGA™ series voltage reference that draws just 1.5 µA from the input rail. For a sensor node or portable instrument that spends most of its life in a low-power sleep state, that quiescent current is below the self-discharge floor of a typical CR2032 coin cell — the reference does not meaningfully shorten shelf life. It outputs a fixed 2.5 V with a ±0.3% initial tolerance and a 50 ppm/°C temperature coefficient, so the voltage a 12-bit ADC sees at 85 °C stays within roughly ±1 LSB of the room-temperature value — no external trim pot needed for most industrial-grade measurements. ## Noise floor and ADC reference duty For a 12-bit ADC with a 2.5 V reference, the peak-to-peak noise in the 0.1–10 Hz band represents about 5 LSBs of uncertainty — acceptable for a process-control loop but worth noting if the system targets 14-bit or higher resolution without averaging. The series-reference topology means the output is regulated from the input rail, not from a current through a resistor — the load regulation is inherently tighter than a shunt reference, and the output stays stable with the 7 mA maximum output current.","metaTitle":"ISL21080CIH325Z-TK Series Voltage Reference, 2.5V, 0.3%","metaDescription":"Active Renesas ISL21080CIH325Z-TK series voltage reference, 2.5V fixed output, ±0.3% tolerance, 1.5µA supply current, SOT-23-3. Industrial temp -40 to +85°C.","metaKeywords":null},"attributes":{"series":"FGA™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"FGA™","Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±0.3%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Series","Voltage - Input":"2.7V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"7 mA","Current - Supply":"1.5µA","Noise - 0.1Hz to 10Hz":"30µVp-p","Noise - 10Hz to 10kHz":"52µVrms","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"50ppm/°C","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.06","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.06000","currency":"USD"},{"qty":10,"price":"$1.85400","currency":"USD"},{"qty":25,"price":"$1.74880","currency":"USD"},{"qty":100,"price":"$1.49010","currency":"USD"},{"qty":250,"price":"$1.39920","currency":"USD"},{"qty":500,"price":"$1.22430","currency":"USD"},{"qty":1000,"price":"$1.10220","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/65d71fdc39fd81a08e06d5e5d1a373ec.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What does the FGA™ series designation mean for this reference?","answer":"FGA™ is Renesas' proprietary series voltage-reference architecture optimized for ultra-low power. The 1.5 µA supply current is the hallmark of this family — it allows the reference to remain powered continuously in battery-operated designs without a significant drain on the energy budget."},{"question":"What is the closest pin-compatible alternative to the ISL21080CIH325Z-TK?","answer":"No official pin-compatible cross-reference or second-source is listed in the available records. Within the same FGA™ series, other output-voltage variants share the same SOT-23-3 footprint and pinout, but a direct functional replacement from another manufacturer is not confirmed. For BOM-risk mitigation, contact us with your target output voltage and tolerance requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/ISL21080CIH325Z-TK","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/ISL21080CIH325Z-TK when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}