{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"OPA643PB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"OPA643PB","canonicalUrl":"https://icboms.com/texas-instruments/OPA643PB","factsUrl":"https://icboms.com/api/mcp/products/OPA643PB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments OPA643PB voltage-feedback operational amplifier, 800 MHz gain-bandwidth, 1000 V/µs slew rate, single circuit, 8-DIP through-hole package, industrial temperature range.","salesMarkdown":"## Active lifecycle, through-hole package — still a breadboard-friendly choice The OPA643PB is an active-production voltage-feedback op-amp from Texas Instruments, so there is no NRND or EOL watch to worry about for new designs or replacement builds. Housed in an 8-DIP (0.300\", 7.62 mm) through-hole package with the 8-PDIP supplier designation, it drops straight into a solderless breadboard or a hand-soldered prototype board — no hot-air station or reflow profile needed. ## 800 MHz GBW and 1000 V/µs slew — where the speed ceiling lives The 800 MHz gain-bandwidth product sets the small-signal closed-loop bandwidth: at a noise gain of 10, the -3 dB point lands around 80 MHz, assuming the feedback network's parasitic capacitance doesn't dominate. The 1000 V/µs slew rate defines the large-signal risetime — for a 5 V output step, the output slews at roughly 5 ns. This matters when driving a flash ADC's analog input or a video line driver where the edge rate must stay inside the sampling window. Voltage-feedback topology means the input bias current (19 µA typical) is higher than a JFET-input op-amp — plan for this when the source impedance exceeds a few kilo-ohms, or the bias current times the source resistance adds a DC offset error. ## Supply rails: 9 V to 11 V span — not a wide-VIN part The supply span runs from 9 V minimum to 11 V maximum — a tight 2 V window. This is not a part for a 5 V single-rail system or a 15 V industrial bus; it wants a regulated 10 V rail or a pair of ±5 V supplies that stay inside the 11 V total. At 20 mA supply current and 60 mA output drive per channel, the thermal rise in the 8-DIP package is modest at room temperature, but at 85°C ambient the internal dissipation should be checked against the junction-to-ambient thermal resistance for the PDIP body. ## Industrial temperature grade — -40°C to 85°C Rated for -40°C to 85°C operating temperature, the OPA643PB covers most commercial and industrial indoor environments — test chambers, benchtop instrumentation, and control-room gear. It does not carry an automotive AEC-Q100 grade, so it is not qualified for under-hood or 125°C engine-bay duty. The 500 µV input offset voltage (typical) is the DC accuracy floor at 25°C; expect some drift over the temperature range, though the datasheet's typical drift curve is the reference for a precision DC-coupled path. ## Sourcing and availability — quoted to order It is sourced through authorized and independent distribution channels; current pricing and lead time are confirmed at RFQ against your BOM quantity. The package is listed as Bulk — typically tubes or anti-static trays for through-hole DIPs. No reel or tape packaging applies, so plan for manual placement or tube-fed insertion if the line uses automated through-hole assembly.","metaTitle":"TI OPA643PB Voltage-Feedback Op-Amp, 800 MHz, 1000 V/µs","metaDescription":"Texas Instruments OPA643PB voltage-feedback op-amp: 800 MHz GBW, 1000 V/µs slew rate, 8-DIP through-hole package. Active lifecycle, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Package":"Bulk","Slew Rate":"1000V/µs","Mounting Type":"Through Hole","Amplifier Type":"Voltage Feedback","Package / Case":"8-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Current - Supply":"20mA","Number of Circuits":"1","Current - Input Bias":"19 µA","Operating Temperature":"-40°C ~ 85°C","Gain Bandwidth Product":"800 MHz","Voltage - Input Offset":"500 µV","Supplier Device Package":"8-PDIP","Current - Output / Channel":"60 mA","Voltage - Supply Span (Max)":"11 V","Voltage - Supply Span (Min)":"9 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.92","priceTiers":[{"qty":77,"price":"$3.92000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a87314cfa46dff931794cfd073dd6af2.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/OPA643PB/alternatives.json"},"ai":{"faq":[{"question":"How can I order the OPA643PB or check current stock?","answer":"The OPA643PB is an active Texas Instruments part sourced through authorized and independent distribution."},{"question":"What is the OPA643PB's slew rate and what does it mean for my circuit?","answer":"The OPA643PB has a 1000 V/µs slew rate. For a 5 V output step, the output slews in roughly 5 ns, which sets the large-signal risetime limit for driving flash ADC inputs or video lines."},{"question":"Will the OPA643PB drop into a board designed for the THS4215DRBT?","answer":"No — the OPA643PB is an 8-DIP through-hole package, while the THS4215DRBT is a surface-mount device. The pinout and supply requirements also differ; a board spin or adapter is required."},{"question":"What supply voltage does the OPA643PB need?","answer":"The OPA643PB requires a supply span between 9 V and 11 V total. It is not a wide-VIN part — a regulated 10 V rail or ±5 V supplies that stay within the 11 V maximum are needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/OPA643PB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/OPA643PB 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}}