{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"INA281B2IDBVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"INA281B2IDBVR","canonicalUrl":"https://icboms.com/texas-instruments/INA281B2IDBVR","factsUrl":"https://icboms.com/api/mcp/products/INA281B2IDBVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments INA281B2IDBVR, Current Sense Amplifier, 1 Circuit, SOT-23-5, 2.7 V to 20 V supply, 1.3 MHz GBW, 2.5 V/µs slew rate, -40°C to 125°C.","salesMarkdown":"The Texas Instruments INA281B2IDBVR is a single-channel current sense amplifier in a SOT-23-5 package. It operates from a 2.7 V to 20 V supply span and delivers a gain-bandwidth product of 1.3 MHz with a 2.5 V/µs slew rate. The input offset voltage is 55 µV, and the input bias current is 20 µA. The part is rated for -40°C to 125°C, covering industrial and automotive under-hood environments. It is a current-sense amplifier, so its primary role is to amplify the voltage across a shunt resistor for load-current monitoring in power supplies, motor drives, and battery chargers. ## 1.3 MHz GBW — what it means for the loop The 1.3 MHz gain-bandwidth product sets the usable bandwidth for the current-sense signal. ## Supply voltage and temperature range The 2.7 V to 20 V supply span means this amplifier can run off a 2.7 V to 20 V supply. ## Package and mounting The INA281B2IDBVR is offered in a SOT-23-5 package. It is surface-mount only.","metaTitle":"TI INA281B2IDBVR Current Sense Amplifier, 1.3 MHz, SOT-23-5","metaDescription":"TI INA281B2IDBVR current sense amplifier, single circuit, 2.7 V to 20 V supply, 1.3 MHz GBW, 55 µV offset, -40°C to 125°C. Active, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"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":"55 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":"$2.63","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.63000","currency":"USD"},{"qty":10,"price":"$2.36000","currency":"USD"},{"qty":25,"price":"$2.22600","currency":"USD"},{"qty":100,"price":"$1.89660","currency":"USD"},{"qty":250,"price":"$1.78080","currency":"USD"},{"qty":500,"price":"$1.55820","currency":"USD"},{"qty":1000,"price":"$1.29108","currency":"USD"},{"qty":3000,"price":"$1.26000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/646ef6de80941b974598231cd90bb517.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for INA281B2IDBVR if end-of-life?","answer":"There is no end-of-life notice for this part. If a replacement were needed, the INA281A2IDBVR (different gain) or the INA4290A2IRGVR (four-channel, similar bandwidth) are functional alternatives, but verify the gain and channel count for your application."},{"question":"What is INA281B2IDBVR's listed slew rate?","answer":"The slew rate is 2.5 V/µs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/INA281B2IDBVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/INA281B2IDBVR 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}}