{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT1461ACS8-3#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT1461ACS8-3PBF","canonicalUrl":"https://icboms.com/analog-devices/LT1461ACS8-3PBF","factsUrl":"https://icboms.com/api/mcp/products/LT1461ACS8-3%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT1461ACS8-3#PBF series voltage reference, 3V fixed output, ±0.04% tolerance, 3ppm/°C drift, 100mA output, 8-SOIC, tube.","salesMarkdown":"## 3V precision reference for ADC/DAC bias The LT1461ACS8-3#PBF is a series voltage reference from Analog Devices, delivering a fixed 3V output with ±0.04% initial tolerance. This is the accuracy floor for the entire operating range — a 3V rail that holds to within 1.2 mV at 25°C, before temperature and load effects are added. For a 16-bit ADC with a 3V reference, that drift contributes roughly 0.2 LSB of error — well within the noise floor of most SAR converters. Output current is rated at 100 mA, which is unusually high for a precision series reference. This lets the LT1461ACS8-3#PBF bias multiple converter reference inputs, an analog front-end, and a small buffer amplifier from a single reference node without an external buffer stage. ## Noise and quiescent budget for signal-chain integrity For a 3V output, that translates to roughly 24 µV p-p of flicker noise — the dominant error source below the ADC's quantization step in a 16-bit system. Quiescent supply current is 70 µA typical, making this reference viable for battery-powered instrumentation that spends most of its time in a low-duty-cycle measurement loop. The 3.5V minimum input headroom means it can run from a 3.7V Li-ion cell down to its discharge floor. The input voltage range spans 3.5V to 20V, so the reference can be powered from a regulated 5V or 12V rail without a separate LDO. The series topology means the load current is drawn from the input rail, not from a resistor divider — efficiency is high at light loads. ## SOIC-8 footprint and board-level integration The supplier device package is 8-SO, which is the same mechanical outline used across the LT1461 family. Supplied in tube packaging, this is the standard handling format for through-hole assembly or small-batch rework. The surface-mount package reflows on a standard SOIC-8 land pattern with no thermal pad requirement — the reference's 100 mA output does not generate significant self-heating in still air. ## Active lifecycle and compliance documentation No additional compliance documentation (REACH, UL, IEC) is listed in the manufacturer's standard product data.","metaTitle":"LT1461ACS8-3#PBF Analog Devices Voltage Reference, 3V","metaDescription":"Analog Devices LT1461ACS8-3#PBF series voltage reference, 3V fixed output, ±0.04% tolerance, 3ppm/°C drift, 100mA output, 8-SOIC. Active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Tolerance":"±0.04%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Reference Type":"Series","Voltage - Input":"3.5V ~ 20V","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Supply":"70µA","Noise - 0.1Hz to 10Hz":"8ppmp-p","Noise - 10Hz to 10kHz":"9.6ppmrms","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"8-SO","Temperature Coefficient":"3ppm/°C","Voltage - Output (Min/Fixed)":"3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$18.5","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$18.50000","currency":"USD"},{"qty":10,"price":"$16.99800","currency":"USD"},{"qty":25,"price":"$16.29320","currency":"USD"},{"qty":100,"price":"$14.35570","currency":"USD"},{"qty":300,"price":"$13.65117","currency":"USD"},{"qty":500,"price":"$12.77044","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to LT1461ACS8-3#PBF?","answer":"The ADR435BRZ from the XFET® series shares the same ±0.04% tolerance and 3ppm/°C temperature coefficient, but its output is 5V, not 3V. The ADR443BRZ outputs 3V with the same tolerance and drift, but its maximum output current is 10 mA versus the LT1461's 100 mA. Neither is a pin-compatible drop-in — the ADR43x parts use a different die and have a wider industrial temperature range (-40°C to +125°C). For a 3V reference with 100 mA drive, the LT1461ACS8-3#PBF is the higher-current choice."},{"question":"What is the tolerance and temperature drift of LT1461ACS8-3#PBF?","answer":"At 25°C, the 3V output is within 1.2 mV of nominal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT1461ACS8-3PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT1461ACS8-3PBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}