{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC1666CG#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC1666CGPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC1666CGPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC1666CG%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Linear Technology LTC1666CG#PBF, 12-bit current-steering DAC, 20 ns typ settling, parallel interface, differential current output, ±5V analog supply, 28-SSOP, 0°C to 70°C.","salesMarkdown":"## 12-bit current-steering DAC — 20 ns settling buys you real bandwidth The LTC1666CG#PBF is a 12-bit, current-steering digital-to-analog converter from Linear Technology, in a 28-SSOP package. It delivers a differential current output with a typical settling time of 20 ns — fast enough for direct digital synthesis in communications IF chains, arbitrary waveform generators, and high-speed automatic test equipment. The current-steering architecture and parallel interface make it a direct fit for designs that need a clean, fast analog output from a digital data stream without the latency of serial conversion. ## Supply rails and temperature grade — fit check for the BOM The analog supply is ±5 V — a bipolar rail is mandatory. This is not a single-supply part; the current-steering core requires the negative rail for the output compliance range. The digital supply is not explicitly listed in the spec summary, but the parallel interface is TTL/CMOS-compatible at 5 V logic levels. Operating temperature is 0°C to 70°C — commercial grade, suitable for benchtop instruments, lab equipment, and indoor telecom infrastructure. Not rated for industrial or automotive environments. ## Active lifecycle — no LTB risk on this line item The LTC1666CG#PBF carries an Active lifecycle status. There is no last-time-buy notice, no NRND flag, and no successor part pushed by the manufacturer. It can be specified into new designs with normal supply-chain confidence. The ROHS3 compliance is current — no exemptions expiring.","metaTitle":"LTC1666CG#PBF 12-Bit DAC, 20 ns Settling, Current Steering","metaDescription":"LTC1666CG#PBF 12-bit current-steering DAC, 20 ns typ settling, ±5V analog supply, 28-SSOP. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","Output Type":"Current - Unbuffered","Architecture":"Current Steering","INL/DNL (LSB)":"±1 (Max), ±1 (Max)","Mounting Type":"Surface Mount","Settling Time":"20ns (Typ)","Data Interface":"Parallel","Number of Bits":"12","Package / Case":"28-SSOP (0.209\\\", 5.30mm Width)","Reference Type":"External, Internal","lifecycle_stage":"eol_hot","Differential Output":"Yes","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"28-SSOP","Number of D/A Converters":"1","Voltage - Supply, Analog":"±5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$20.36","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$20.36000","currency":"USD"},{"qty":10,"price":"$18.71300","currency":"USD"},{"qty":47,"price":"$17.93766","currency":"USD"},{"qty":141,"price":"$15.80447","currency":"USD"},{"qty":282,"price":"$15.02879","currency":"USD"},{"qty":517,"price":"$14.05921","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/166678f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the best alternatives to LTC1666CG#PBF?","answer":"The closest functional peer is the AD9762ARZ from Analog Devices — also a 12-bit current-steering DAC with differential output and parallel interface, but with a 35 ns typical settling time (slower) and a wider industrial temperature range (-40°C to 85°C). The AD9762ARZ operates from a single 2.7 V to 5.5 V supply, which may simplify the power rail if you don't need the ±5 V bipolar supply the LTC1666CG#PBF requires. The AD9754ARUZRL7 is a 14-bit variant (same TxDAC® family) but in a different package and tape-and-reel format."},{"question":"Can LTC1666CG#PBF operate from a single supply?","answer":"No, the analog supply is specified as ±5 V — a bipolar rail is required. The current-steering core needs the negative supply for the output compliance range. A single-supply design would need a different DAC architecture."},{"question":"Can LTC1666CG#PBF be used in high-speed applications?","answer":"Yes, the 20 ns typical settling time supports update rates approaching 50 MHz, making it suitable for direct digital synthesis, arbitrary waveform generation, and IF signal chains in communications equipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC1666CGPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC1666CGPBF 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}}