{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"INA293B5IDBVT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"INA293B5IDBVT","canonicalUrl":"https://icboms.com/texas-instruments/INA293B5IDBVT","factsUrl":"https://icboms.com/api/mcp/products/INA293B5IDBVT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments INA293B5IDBVT, Current Sense Amplifier, 1 Circuit, 900 kHz -3dB Bandwidth, 2.5V/µs Slew Rate, 2.7V to 20V Supply, SOT-23-5, -40°C to 125°C.","salesMarkdown":"## Precision current sense in a hand-reworkable SOT-23-5 That 900 kHz -3dB bandwidth and 2.5 V/µs slew rate mean it can track current waveforms in switching converters running at a few hundred kilohertz, not just DC rail monitoring. ## 2 µV offset — what it means for shunt selection With a 2 µV input offset voltage, the dominant error term in a low-side sense circuit shifts from the amplifier to the shunt resistor's tolerance and TCR. For a 50 A load through a 1 mΩ shunt, the 50 mV sense signal sees a 0.004% offset contribution — negligible. Even at 1 A through 10 mΩ (10 mV sense), the offset adds only 0.02% error. This lets you use a smaller shunt value to reduce power dissipation, or skip a trim pot in production. The 20 µA input bias current flows into the shunt, adding a small voltage drop that matters only with very high shunt resistances — at 100 mΩ it adds 2 µV, doubling the offset, so keep shunt values under 50 mΩ for precision work. ## 900 kHz bandwidth — switching-frequency fit The 900 kHz -3dB bandwidth and 2.5 V/µs slew rate give this part enough closed-loop response to reproduce current waveforms in buck converters switching at 200-400 kHz with reasonable fidelity. For a 500 kHz switching regulator, expect some amplitude roll-off and phase lag — the output will still show the average and ripple envelope, but the edges will be slewed. The 1.5 mA quiescent supply current is a reasonable trade-off for this bandwidth; if your application only needs DC current monitoring, a lower-bandwidth sense amp would draw less supply current. The 2.7 V minimum supply means it works in 3.3 V systems with headroom to spare; the 20 V maximum covers 12 V and 24 V industrial buses directly. No separate LDO needed for the sense amp rail if the bus is within that range. ROHS3 compliant per the listing, so it passes EU material restrictions as-is.","metaTitle":"TI INA293B5IDBVT Current Sense Amplifier, 900 kHz, SOT-23-5","metaDescription":"Texas Instruments INA293B5IDBVT current sense amplifier: 2 µV offset, 900 kHz bandwidth, 2.5 V/µs slew rate, 2.7-20 V supply, -40 to 125°C. SOT-23-5.","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":"2.5V/µs","Mounting Type":"Surface Mount","-3db Bandwidth":"900 kHz","Amplifier Type":"Current Sense","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Current - Supply":"1.5mA","Number of Circuits":"1","Current - Input Bias":"20 µA","Operating Temperature":"-40°C ~ 125°C","Voltage - Input Offset":"2 µV","Supplier Device Package":"SOT-23-5","Voltage - Supply Span (Max)":"20 V","Voltage - Supply Span (Min)":"2.7 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.72","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.72000","currency":"USD"},{"qty":10,"price":"$3.34000","currency":"USD"},{"qty":25,"price":"$3.15760","currency":"USD"},{"qty":100,"price":"$2.73670","currency":"USD"},{"qty":250,"price":"$2.59636","currency":"USD"},{"qty":500,"price":"$2.32972","currency":"USD"},{"qty":1250,"price":"$1.98600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5d12be184aa0615f4bd161ad1cc138e2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can INA293B5IDBVT be used in a 3.3V system?","answer":"Yes. The minimum supply voltage is 2.7 V, so a 3.3 V rail provides 0.6 V of headroom above dropout. The input common-mode range and output swing are specified for 2.7 V to 20 V operation, so 3.3 V is well within the normal operating range."},{"question":"Is INA293B5IDBVT RoHS compliant?","answer":"Yes, it is listed as ROHS3 compliant, meaning it meets the EU RoHS directive including the exemption for lead in certain applications."},{"question":"What is the bandwidth of the INA293B5IDBVT?","answer":"The -3dB bandwidth is 900 kHz, with a slew rate of 2.5 V/µs. This combination supports accurate current measurement in switching converters operating up to a few hundred kilohertz."},{"question":"Is the INA293B5IDBVT obsolete?","answer":"No, the product status is listed as Active. There is no indication of discontinuation or last-time-buy. It remains a current-production part suitable for new designs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/INA293B5IDBVT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/INA293B5IDBVT 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}}