{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"INA281B5QDBVRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"INA281B5QDBVRQ1","canonicalUrl":"https://icboms.com/texas-instruments/INA281B5QDBVRQ1","factsUrl":"https://icboms.com/api/mcp/products/INA281B5QDBVRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments INA281B5QDBVRQ1, Automotive AEC-Q100 Current Sense Amplifier, 1 Circuit, 1.3 MHz Gain Bandwidth, 2.5 V/µs Slew Rate, 2.7 V to 20 V Supply, SOT-23-5 Package, -40°C to 125°C.","salesMarkdown":"## Automotive current sense amplifier in SOT-23-5 It is qualified to AEC-Q100, making it suitable for automotive under-hood and chassis-domain applications, as well as industrial motor drives and power management systems where extended temperature range and reliability are required. ## 1.3 MHz gain bandwidth — what it means for shunt monitoring The 1.3 MHz gain bandwidth product sets the usable bandwidth for closed-loop current sensing. For a typical shunt amplifier gain of 20 V/V, the -3 dB bandwidth is around 65 kHz — sufficient for monitoring DC rail currents, solenoid drive waveforms, or PWM motor phases up to several tens of kHz. If your design requires faster transient capture (e.g., switching frequencies above 100 kHz), you would need a wider-bandwidth part like the INA4290A2IRGVR (1.1 MHz) or a dedicated high-speed amplifier. ## Supply range 2.7 V to 20 V — rail flexibility The supply voltage span from 2.7 V to 20 V covers the common automotive and industrial rails: 3.3 V, 5 V, and 12 V. At the low end, 2.7 V allows operation from a 3.3 V rail with margin for drop; at 20 V it can run directly off a 12 V battery line without an extra regulator. The 1.5 mA supply current is moderate — fine for always-on modules if the system can budget the quiescent draw. ## AEC-Q100 qualification and temperature grade That combination qualifies it for automotive under-hood environments (engine bay, transmission control, battery monitoring) and industrial outdoor or high-temperature equipment. The SOT-23-5 package is small enough for space-constrained modules but still hand-solderable for prototyping. For BOM planning, this removes the last-time-buy risk that haunts older current-sense amplifiers. The part is ROHS3 compliant.","metaTitle":"TI INA281B5QDBVRQ1 Current Sense Amplifier, 1.3 MHz","metaDescription":"TI INA281B5QDBVRQ1 automotive current sense amplifier, 1.3 MHz bandwidth, 2.7 V to 20 V supply, SOT-23-5. AEC-Q100 qualified.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Slew Rate":"2.5V/µs","Mounting Type":"Surface Mount","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 (TA)","Gain Bandwidth Product":"1.3 MHz","Voltage - Input Offset":"100 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":"$3.1","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.10000","currency":"USD"},{"qty":10,"price":"$2.78400","currency":"USD"},{"qty":25,"price":"$2.62600","currency":"USD"},{"qty":100,"price":"$2.23750","currency":"USD"},{"qty":250,"price":"$2.10092","currency":"USD"},{"qty":500,"price":"$1.83830","currency":"USD"},{"qty":1000,"price":"$1.52317","currency":"USD"},{"qty":3000,"price":"$1.48650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b82cbcbf3ceab6a02980fec247ad6f53.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the gain bandwidth product of INA281B5QDBVRQ1?","answer":"The gain bandwidth product is 1.3 MHz."},{"question":"Is INA281B5QDBVRQ1 AEC-Q100 qualified?","answer":"Yes, it is part of the Automotive, AEC-Q100 series and is qualified to AEC-Q100."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/INA281B5QDBVRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/INA281B5QDBVRQ1 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}}