{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT1251CN#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT1251CNPBF","canonicalUrl":"https://icboms.com/analog-devices/LT1251CNPBF","factsUrl":"https://icboms.com/api/mcp/products/LT1251CN%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Linear Technology LT1251CN#PBF, current feedback amplifier, 1 circuit, 40 MHz -3 dB bandwidth, 300 V/µs slew rate, 14-DIP (0.300\", 7.62 mm) through-hole package, 5 V to 30 V single or ±2.5 V to ±15 V dual supply, 14.5 mA supply current.","salesMarkdown":"The LT1251CN#PBF from Linear Technology is a single-channel current-feedback operational amplifier designed for high-speed analog signal processing. Its 40 MHz -3 dB bandwidth and 300 V/µs slew rate suit it for video distribution, pulse amplification, and wideband instrumentation front-ends where settling time and slew-induced distortion matter. The current-feedback topology keeps the gain-bandwidth product largely independent of closed-loop gain, so you get consistent bandwidth across gain settings — a practical advantage over voltage-feedback parts when the gain stage needs to be reconfigured without swapping the amplifier. Each channel delivers 40 mA of output current, enough to drive a 75 Ω video load or a moderate capacitive load like a coaxial cable or an ADC input buffer. The 14.5 mA quiescent supply current is moderate for a 40 MHz amplifier — budget about 72 mW per channel at ±5 V, rising to about 435 mW at ±15 V, so the through-hole DIP package's thermal impedance needs a small airflow or a socket with good convection if running near the top of the supply range continuously. ## Package and mounting — through-hole for prototyping and legacy support This package is a natural fit for breadboard prototyping, socketed evaluation, and rework in existing designs that use DIP footprints. The through-hole format also simplifies manual assembly and field replacement — a practical advantage when the amplifier sits in a test fixture or a low-volume production board where surface-mount reflow isn't justified. The supplier device package is 14-PDIP, which is the standard 0.300\" wide DIP outline.","metaTitle":"LT1251CN#PBF Current Feedback Amplifier, 40 MHz, 300 V/µs","metaDescription":"LT1251CN#PBF current feedback op-amp: 40 MHz bandwidth, 300 V/µs slew rate, 14-DIP through-hole package. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tube","Slew Rate":"300V/µs","Applications":"Current Feedback","Mounting Type":"Through Hole","-3db Bandwidth":"40 MHz","Package / Case":"14-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Current - Supply":"14.5 mA","Number of Circuits":"1","Supplier Device Package":"14-PDIP","Current - Output / Channel":"40 mA","Voltage - Supply, Single/Dual (±)":"5V ~ 30V, ±2.5V ~ 15V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.03","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$16.03000","currency":"USD"},{"qty":10,"price":"$14.73000","currency":"USD"},{"qty":25,"price":"$14.11920","currency":"USD"},{"qty":100,"price":"$12.44020","currency":"USD"},{"qty":250,"price":"$11.82960","currency":"USD"},{"qty":500,"price":"$11.06640","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/12516fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the bandwidth of LT1251CN#PBF?","answer":"The -3 dB bandwidth is 40 MHz, and the slew rate is 300 V/µs. These ratings make it suitable for video and wideband analog signal chains where fast settling and low distortion are required."},{"question":"What is a direct replacement or equivalent for LT1251CN#PBF?","answer":"The LT1256CS#TRPBF is a surface-mount variant in the same current-feedback family with identical 40 MHz bandwidth and 300 V/µs slew rate, but it comes in a different package (SOIC) and mounting type (surface mount). For a through-hole alternative, the LT1252CN8#PBF offers 125 V/µs slew rate and 282 MHz bandwidth in an 8-pin DIP, though with a narrower supply range. Neither is a pin-for-pin replacement — verify the footprint and supply rails before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT1251CNPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT1251CNPBF 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}}