{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC1445CS#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC1445CSPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC1445CSPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC1445CS%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC1445CS#PBF quad comparator with integrated voltage reference, 50mV hysteresis, CMOS/TTL output, 12µs propagation delay, 8.5µA quiescent, 16-SOIC package, tube.","salesMarkdown":"## Quad comparator with on-chip 1.221V reference The LTC1445CS#PBF packs four independent comparators and a precision 1.221V voltage reference into a single 16-SOIC package, saving board space and external reference components in multi-channel threshold detection. Each comparator outputs CMOS or TTL logic levels, so it drives digital inputs directly without a pull-up resistor — the output type is selectable via the supply configuration. ## 12µs propagation delay and 50mV hysteresis A 12µs max propagation delay means the comparator responds to an over-voltage or under-voltage condition within one 83 kHz cycle — fast enough for power-supply sequencing and fault detection loops in industrial control. Built-in 50mV hysteresis prevents output chatter when the input signal sits near the threshold — no external positive-feedback resistor network needed, which simplifies the BOM and layout. 80 dB CMRR and 80 dB PSRR keep the threshold accurate even when the common-mode voltage shifts or the supply rail droops — the reference stays stable to within a few millivolts across the 2V to 11V single-supply range. ## 8.5µA quiescent for always-on sensing Drawing 8.5µA max quiescent current across all four comparators plus the reference, the LTC1445CS#PBF fits battery-powered threshold monitors that must run continuously — a 500 mAh cell lasts over six years at this draw.","metaTitle":"LTC1445CS#PBF Quad Comparator with Voltage Reference, 12µs","metaDescription":"LTC1445CS#PBF quad comparator with integrated 1.221V reference. 12µs propagation delay, 8.5µA quiescent, 50mV hysteresis. Active, RoHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"with Voltage Reference","Package":"Tube","Hysteresis":"50mV","Output Type":"CMOS, TTL","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","CMRR, PSRR (Typ)":"80dB CMRR, 80dB PSRR","Number of Elements":"4","Operating Temperature":"0°C ~ 70°C","Current - Output (Typ)":"0.015mA @ 5V","Propagation Delay (Max)":"12µs","Supplier Device Package":"16-SO","Current - Quiescent (Max)":"8.5µA","Voltage - Input Offset (Max)":"10mV @ 5V","Voltage - Supply, Single/Dual (±)":"2V ~ 11V, ±1V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.43","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.43000","currency":"USD"},{"qty":10,"price":"$6.71000","currency":"USD"},{"qty":50,"price":"$6.39780","currency":"USD"},{"qty":100,"price":"$5.55520","currency":"USD"},{"qty":250,"price":"$5.30552","currency":"USD"},{"qty":500,"price":"$4.83740","currency":"USD"},{"qty":1000,"price":"$4.21322","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7dc400bd4043924b8ebef943b7431927.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the LTC1445CS#PBF's supply voltage range?","answer":"It operates from 2V to 11V on a single supply, or ±1V to ±5.5V on dual supplies — covering 3.3V, 5V, and 9V rails commonly found in battery-powered and industrial designs."},{"question":"Can the LTC1445CS#PBF replace the LTC1443CS#PBF in an existing design?","answer":"Both are quad comparators with an integrated voltage reference in the same SOIC-16 package, with identical 12µs propagation delay and 80dB CMRR/PSRR. The key difference is the LTC1445 includes 50mV built-in hysteresis, while the LTC1443 does not — so a drop-in replacement is possible only if the external hysteresis network on the LTC1443 board is removed or if the 50mV internal hysteresis is acceptable for the threshold accuracy."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC1445CSPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC1445CSPBF 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}}