{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"OPA991IDCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"OPA991IDCKR","canonicalUrl":"https://icboms.com/texas-instruments/OPA991IDCKR","factsUrl":"https://icboms.com/api/mcp/products/OPA991IDCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments OPA991IDCKR, single general-purpose op-amp, 4.5 MHz gain bandwidth, 21 V/µs slew rate, rail-to-rail output, 2.7 V to 40 V supply, SC-70-5 package, -40°C to 125°C.","salesMarkdown":"## What this single op-amp brings to the rail The Texas Instruments OPA991IDCKR is a single-channel, general-purpose operational amplifier in a SC-70-5 package. It delivers a 4.5 MHz gain-bandwidth product and a 21 V/µs slew rate, with rail-to-rail output swing that lets you drive ADC inputs or signal chains close to the supply rails without headroom tricks. Supply range spans 2.7 V to 40 V, so the same part works in a 3.3 V sensor front-end or a 24 V industrial control loop. Input bias current sits at 10 pA, making it usable with high-impedance sources like photodiodes or pH probes. Output can source or sink 75 mA per channel, enough to drive a moderate load or a reference buffer. ## Where it fits on the board The SC-70-5 footprint is about 2 mm × 2.1 mm — small enough to slip into a tight multi-channel array or a space-constrained sensor module. Surface-mount only, so plan for reflow or hand-solder with fine tip. The -40°C to 125°C operating range covers automotive under-hood and industrial outdoor enclosures without derating. Supply span from 2.7 V to 40 V means you can run it off an unregulated 12 V battery rail or a regulated 5 V logic supply without a separate LDO. ## Active production — no LTB clock ticking TI lists the OPA991IDCKR as Active. For a production BOM that needs a stable op-amp through a multi-year build, this part isn't forcing a respin anytime soon.","metaTitle":"TI OPA991IDCKR General-Purpose Op-Amp, 4.5 MHz","metaDescription":"TI OPA991IDCKR single general-purpose op-amp: 4.5 MHz GBW, 21 V/µs slew rate, rail-to-rail output, 2.7-40 V supply, SC-70-5.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Slew Rate":"21V/µs","Output Type":"Rail-to-Rail","Mounting Type":"Surface Mount","Amplifier Type":"General Purpose","Package / Case":"5-TSSOP, SC-70-5, SOT-353","lifecycle_stage":"eol_hot","Current - Supply":"560µA","Number of Circuits":"1","Current - Input Bias":"10 pA","Operating Temperature":"-40°C ~ 125°C (TA)","Gain Bandwidth Product":"4.5 MHz","Voltage - Input Offset":"125 µV","Supplier Device Package":"SC-70-5","Current - Output / Channel":"75 mA","Voltage - Supply Span (Max)":"40 V","Voltage - Supply Span (Min)":"2.7 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.43","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.43000","currency":"USD"},{"qty":10,"price":"$1.27800","currency":"USD"},{"qty":25,"price":"$1.21320","currency":"USD"},{"qty":100,"price":"$0.99660","currency":"USD"},{"qty":250,"price":"$0.93156","currency":"USD"},{"qty":500,"price":"$0.82326","currency":"USD"},{"qty":1000,"price":"$0.64994","currency":"USD"},{"qty":3000,"price":"$0.60661","currency":"USD"},{"qty":6000,"price":"$0.57628","currency":"USD"},{"qty":15000,"price":"$0.55461","currency":"USD"}]},"links":{"datasheetUrl":"http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2FOPA991","sourceUrl":null},"ai":{"faq":[{"question":"What is the OPA991IDCKR equivalent or cross reference?","answer":"The closest functional second-source in the same SC-70-5 footprint is the TLV9351IDCKR from TI. It offers similar 3.5 MHz GBW and 20 V/µs slew rate, same 10 pA input bias, and same rail-to-rail output. The TLV9351IDCKR has a higher input offset voltage (350 µV vs 125 µV) and a lower output current (60 mA vs 75 mA). For a dual-channel alternative, the TLV9362IDDFR (10.6 MHz, 25 V/µs) in a different package is a step up in speed but not a pin-for-pin swap."},{"question":"Is OPA991IDCKR single-supply?","answer":"Yes. The 2.7 V to 40 V supply span covers single-supply operation from 3.3 V, 5 V, 12 V, or 24 V rails. Rail-to-rail output lets the signal swing close to both supply rails without external level shifting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/OPA991IDCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/OPA991IDCKR 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}}