{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC6954IUFF-4#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC6954IUFF-4PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC6954IUFF-4PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC6954IUFF-4%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC6954IUFF-4#PBF, Fanout Buffer (Distribution), Divider, 1 circuit, 1:3 ratio, 1.4 GHz max, LVCMOS/LVDS/LVPECL input, LVCMOS/LVDS output, 36-WFQFN Exposed Pad, -40°C to 105°C.","salesMarkdown":"## What this clock buffer does at 1.4 GHz The LTC6954IUFF-4#PBF is a single-channel fanout buffer with an integrated divider, accepting LVCMOS, LVDS, or LVPECL inputs and delivering LVCMOS or LVDS outputs at a maximum frequency of 1.4 GHz. The 1:3 ratio means one input drives three output paths — useful for splitting a reference clock to multiple ADCs, FPGAs, or SerDes transceivers without adding jitter from a separate PLL. ## Industrial temperature grade and supply rails The supply voltage range is tight at 3.15V to 3.45V — plan a clean 3.3V rail with ±5% tolerance; a switching regulator with 50 mV ripple will eat into that margin. ## Package and footprint for layout Housed in a 36-WFQFN with exposed pad, 4 mm x 7 mm body. Surface-mount only; no through-hole option. ## Active production — no EOL concern For BOM planning, this line item is stable — no forced redesign or last-time buy horizon.","metaTitle":"LTC6954IUFF-4#PBF Clock Buffer 1:3 1.4GHz 36-QFN - Analog","metaDescription":"LTC6954IUFF-4#PBF fanout buffer/divider, 1.4 GHz max, 1:3 ratio, LVCMOS/LVDS/LVPECL input, -40°C to 105°C, 36-QFN. Active production. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Type":"Fanout Buffer (Distribution), Divider","Input":"LVCMOS, LVDS, LVPECL","Output":"LVCMOS, LVDS","Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"36-WFQFN Exposed Pad","Frequency - Max":"1.4 GHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V","Number of Circuits":"1","Ratio - Input:Output":"1:3","Operating Temperature":"-40°C ~ 105°C","Supplier Device Package":"36-QFN (4x7)","Differential - Input:Output":"Yes/Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$19.73","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$19.73000","currency":"USD"},{"qty":10,"price":"$18.12800","currency":"USD"},{"qty":25,"price":"$17.37720","currency":"USD"},{"qty":100,"price":"$15.31060","currency":"USD"},{"qty":250,"price":"$14.55916","currency":"USD"},{"qty":500,"price":"$13.61984","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8b544edc252a197c9dbfb2b62446a126.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LTC6954IUFF-4#PBF suitable for high-speed clock distribution?","answer":"Yes — the 1.4 GHz maximum frequency and differential input/output make it appropriate for distributing high-speed reference clocks to ADCs, DACs, or FPGAs. The 1:3 fanout keeps the signal path short and matched."},{"question":"What is the difference between LTC6954IUFF-4#PBF and the LTC6957 variants?","answer":"The LTC6957 family (e.g., LTC6957IDD-2#PBF) is a fanout buffer only — no divider — with a maximum frequency of 300 MHz and a 1:2 ratio, versus the LTC6954's 1.4 GHz and 1:3 ratio with divider. The LTC6957 also tops out at 85°C, while the LTC6954IUFF-4#PBF extends to 105°C. These are not drop-in replacements; the LTC6954 is the higher-speed, wider-temperature option."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC6954IUFF-4PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC6954IUFF-4PBF 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}}