{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"INA181A4QDBVRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"INA181A4QDBVRQ1","canonicalUrl":"https://icboms.com/texas-instruments/INA181A4QDBVRQ1","factsUrl":"https://icboms.com/api/mcp/products/INA181A4QDBVRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments INA181A4QDBVRQ1, automotive AEC-Q100 current sense amplifier, single circuit, rail-to-rail output, 105 kHz gain bandwidth, 2 V/µs slew rate, 2.7-5.5 V supply, SOT-23-6 package, -40 to 125°C.","salesMarkdown":"## What this current sense amplifier does on the board The Texas Instruments INA181A4QDBVRQ1 is a single-channel current sense amplifier with a rail-to-rail output, packaged in a SOT-23-6. It's built for the automotive temperature range (-40°C to 125°C) and carries AEC-Q100 qualification, so it's suited for under-hood and chassis-domain current monitoring — think motor winding current, solenoid hold current, or battery-load sensing in an ECU. The 105 kHz gain-bandwidth product means it can track DC load changes and low-frequency ripple, but it won't resolve switching edges in a PWM drive above a few kHz. That's fine for overcurrent detection and average-current feedback loops. ## 105 kHz bandwidth — what it means for your measurement Gain-bandwidth product is 105 kHz and slew rate is 2 V/µs. The rail-to-rail output uses the full ADC input range. ## Supply and quiescent current Supply span is 2.7 V to 5.5 V. Quiescent current is 195 µA typical.","metaTitle":"INA181A4QDBVRQ1 Current Sense Amplifier, AEC-Q100, 105 kHz","metaDescription":"TI INA181A4QDBVRQ1 automotive current sense amplifier, single rail-to-rail output, 2.7-5.5 V supply, 105 kHz bandwidth, SOT-23-6.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Slew Rate":"2V/µs","Output Type":"Rail-to-Rail","Mounting Type":"Surface Mount","Amplifier Type":"Current Sense","Package / Case":"SOT-23-6","lifecycle_stage":"eol_hot","Current - Supply":"195µA","Number of Circuits":"1","Current - Input Bias":"75 µA","Operating Temperature":"-40°C ~ 125°C (TA)","Gain Bandwidth Product":"105 kHz","Voltage - Input Offset":"100 µV","Supplier Device Package":"SOT-23-6","Current - Output / Channel":"8 mA","Voltage - Supply Span (Max)":"5.5 V","Voltage - Supply Span (Min)":"2.7 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.66","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.66000","currency":"USD"},{"qty":10,"price":"$0.58100","currency":"USD"},{"qty":25,"price":"$0.54560","currency":"USD"},{"qty":100,"price":"$0.44520","currency":"USD"},{"qty":250,"price":"$0.41352","currency":"USD"},{"qty":500,"price":"$0.35192","currency":"USD"},{"qty":1000,"price":"$0.28154","currency":"USD"},{"qty":3000,"price":"$0.25514","currency":"USD"},{"qty":6000,"price":"$0.24900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a1c04c40cf251f383105581f57793347.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is INA181A4QDBVRQ1 equivalent to INA181A4IDBVR?","answer":"The INA181A4QDBVRQ1 is the automotive-qualified (AEC-Q100) version of the INA181A4IDBVR. The non-Q version lacks the automotive temperature range and qualification. Functionally they are the same current sense amplifier, but the Q-suffix part is specified for -40°C to 125°C operation and is built to automotive reliability standards."},{"question":"What is the pinout of INA181A4QDBVRQ1?","answer":"The INA181A4QDBVRQ1 comes in a SOT-23-6 package. Pin 1 is the output, pin 2 is GND, pin 3 is the negative input, pin 4 is the positive input, pin 5 is V+, and pin 6 is the reference voltage input. The pin 1 indicator is a dot on the top of the package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/INA181A4QDBVRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/INA181A4QDBVRQ1 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}}