{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"OPA646U","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"OPA646U","canonicalUrl":"https://icboms.com/texas-instruments/OPA646U","factsUrl":"https://icboms.com/api/mcp/products/OPA646U","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments OPA646U voltage feedback op-amp, single circuit, 180V/µs slew rate, 5.25mA supply, 8-SOIC (0.154\", 3.90mm Width) surface mount, Bulk package.","salesMarkdown":"## What the 180V/µs slew rate means for signal chain design The OPA646U is a Texas Instruments voltage feedback amplifier in an 8-SOIC package, delivering a 180V/µs slew rate that determines the maximum undistorted output voltage swing at a given frequency. For a 5 V peak-to-peak output, this slew rate supports signal frequencies up to roughly 11.5 MHz before slew-induced distortion sets in — a practical ceiling for high-speed ADC driving or video line amplification. Supply current is 5.25 mA typical, with a supply span from 9 V to 11 V minimum to maximum. Input bias current runs 2 µA and input offset voltage is 3 mV — figures that matter for DC-coupled stages where drift across temperature adds to the error budget. ## Package, mounting, and temperature grade Housed in an 8-SOIC (0.154\", 3.90 mm width) package with surface-mount termination — the standard narrow-body SOIC footprint that routes to a 1.27 mm pitch. The supplier device package is listed as 8-SOIC, so the PCB land pattern follows JEDEC MS-012 variation AA. Rated for -40°C to 85°C ambient (TA), this is the industrial temperature band. A system that sees 70°C internal ambient has 15°C of margin before the upper limit; above 85°C the parametric shifts are not guaranteed. ## Lifecycle and compliance status Sourced through independent distribution channels; availability and current pricing are confirmed at RFQ against your BOM quantity. No official second-source or pin-compatible replacement is recorded from TI, so the BOM line is sole-sourced to this order code.","metaTitle":"TI OPA646U Voltage Feedback Op-Amp, 180V/µs Slew Rate","metaDescription":"Texas Instruments OPA646U voltage feedback op-amp, 180V/µs slew rate, 5.25mA supply, 8-SOIC package. Active lifecycle, RoHS non-compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Package":"Bulk","Slew Rate":"180V/µs","Mounting Type":"Surface Mount","Amplifier Type":"Voltage Feedback","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"5.25mA","Number of Circuits":"1","Current - Input Bias":"2 µA","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Input Offset":"3 mV","Supplier Device Package":"8-SOIC","Voltage - Supply Span (Max)":"11 V","Voltage - Supply Span (Min)":"9 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.14","priceTiers":[{"qty":73,"price":"$4.14000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/OPA646U/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to OPA646U?","answer":"The THS4215DRBT is a voltage feedback amplifier in a similar speed class (350 MHz bandwidth, 970 V/µs slew rate) but in a different package (QFN vs 8-SOIC). It is not a pin-compatible drop-in — the board layout must change. No official second-source exists for the OPA646U."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/OPA646U","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/OPA646U when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}