{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLV521DCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLV521DCKR","canonicalUrl":"https://icboms.com/texas-instruments/TLV521DCKR","factsUrl":"https://icboms.com/api/mcp/products/TLV521DCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLV521DCKR, CMOS op-amp, single circuit, 6 kHz gain bandwidth, 350 nA supply current, rail-to-rail output, SC-70-5 package, 1.7 V to 5.5 V supply, -40°C to 125°C.","salesMarkdown":"## 350 nA supply, 6 kHz GBW — the ultra-low-power analog front end Its defining characteristic is a supply current of 350 nA typical, paired with a gain-bandwidth product of 6 kHz. That combination tells you this is not a general-purpose op-amp — it is a precision, DC-coupled, extremely low-power amplifier intended for always-on sensor conditioning, battery monitoring, and threshold detection in energy-harvested or coin-cell systems. The rail-to-rail output stage allows the full supply swing into a 12 mA load, which is enough to drive a microcontroller ADC input or a comparator directly. Input bias current is 1 pA typical, so you can use high-impedance sensors without worrying about offset drift from the bias path. The supply span runs from 1.7 V minimum to 5.5 V maximum. That means a single Li-ion cell (3.0–4.2 V) or two alkaline cells (1.8–3.0 V) can power it without a regulator. The 1.7 V floor is low enough to run from a nearly depleted primary cell, extending system life in remote or disposable equipment. With a slew rate of 0.0025 V/µs, the output cannot track fast signals — expect a full-scale step to settle in roughly 400 µs. This part is for DC or very low-frequency signals (sub-100 Hz), not audio, not control loops, not any waveform that needs a bandwidth beyond a few hertz. The 6 kHz GBW is the open-loop gain-bandwidth product; in a unity-gain configuration the -3 dB point is 6 kHz, but in a gain-of-100 stage the closed-loop bandwidth drops to 60 Hz. ## SC-70-5 package — fits tight layouts The TLV521DCKR comes in the SC-70-5 package, a 5-pin surface-mount case that occupies roughly 2.2 mm × 2.1 mm. That is the same footprint as a small SOT-353. For a board with multiple sensor channels, the small size lets you place an amplifier right at the sensor output, keeping the analog trace short before the ADC. For a BOM engineer, this is a safe selection for a new design — no risk of a mid-production EOL notice that forces a respin.","metaTitle":"TLV521DCKR CMOS Op-Amp, 6 kHz GBW, 350 nA Supply, SC-70-5","metaDescription":"Texas Instruments TLV521DCKR CMOS op-amp: 6 kHz GBW, 350 nA supply, rail-to-rail output, 1.7-5.5 V, -40 to 125°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Slew Rate":"0.0025V/µs","Output Type":"Rail-to-Rail","Mounting Type":"Surface Mount","Amplifier Type":"CMOS","Package / Case":"5-TSSOP, SC-70-5, SOT-353","lifecycle_stage":"eol_hot","Current - Supply":"350nA","Number of Circuits":"1","Current - Input Bias":"1 pA","Operating Temperature":"-40°C ~ 125°C","Gain Bandwidth Product":"6 kHz","Voltage - Input Offset":"100 µV","Supplier Device Package":"SC-70-5","Current - Output / Channel":"12 mA","Voltage - Supply Span (Max)":"5.5 V","Voltage - Supply Span (Min)":"1.7 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.62","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.62000","currency":"USD"},{"qty":10,"price":"$0.53300","currency":"USD"},{"qty":25,"price":"$0.49720","currency":"USD"},{"qty":100,"price":"$0.39770","currency":"USD"},{"qty":250,"price":"$0.36932","currency":"USD"},{"qty":500,"price":"$0.31248","currency":"USD"},{"qty":1000,"price":"$0.24147","currency":"USD"},{"qty":3000,"price":"$0.22016","currency":"USD"},{"qty":6000,"price":"$0.20596","currency":"USD"},{"qty":15000,"price":"$0.20100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dca8084c0110df6a9c1f16c92299566a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the equivalent or replacement for TLV521DCKR?","answer":"The TLV521DCKR is a unique nano-power CMOS op-amp with 350 nA supply current and 6 kHz GBW. If you need higher bandwidth, the TLV9351IDCKR offers 3.5 MHz GBW but draws 600 µA supply. The OPA4374AIPWT is a quad-channel alternative with 6.5 MHz GBW and 600 µA per channel, but it is a different package and supply range. Neither is a drop-in replacement — the TLV521DCKR's extreme low power is its defining feature."},{"question":"Where can I find the datasheet for TLV521DCKR?","answer":"The Texas Instruments TLV521 datasheet is available from the manufacturer's website. The part title and description confirm it is a single CMOS op-amp in SC-70-5."},{"question":"What is TLV521DCKR's listed slew rate?","answer":"The slew rate is 0.0025 V/µs. That is extremely slow — a 1 V step takes about 400 µs to slew. This part is for DC or near-DC signals only."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLV521DCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLV521DCKR 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}}