{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"INA181A1QDBVRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"INA181A1QDBVRQ1","canonicalUrl":"https://icboms.com/texas-instruments/INA181A1QDBVRQ1","factsUrl":"https://icboms.com/api/mcp/products/INA181A1QDBVRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments INA181A1QDBVRQ1, Automotive AEC-Q100 Current Sense Amplifier, 1 Circuit, 350 kHz -3dB Bandwidth, 2V/µs Slew Rate, Rail-to-Rail Output, SOT-23-6.","salesMarkdown":"The 350 kHz -3 dB bandwidth defines the usable frequency range for the current signal. For a 12 V automotive load-switch monitoring a PWM-driven solenoid at 20 kHz, the amplifier reproduces the waveform with negligible attenuation. Above 350 kHz the gain rolls off, so high-frequency transients from switching converters (typically 400 kHz to 2 MHz) will be averaged rather than tracked cycle-by-cycle. If you need to capture sub-µs overcurrent events, a wider-bandwidth current sense amplifier is the better fit. For automotive OEMs and tier-1 suppliers qualifying a BOM for multi-year production, this removes the supply-chain risk of an abrupt discontinuation. The ROHS3 compliance and AEC-Q100 qualification are documented on the TI datasheet and PCN records. ## Input offset and bias — impact on measurement accuracy The input offset voltage is specified at 100 µV, and the input bias current at 75 µA. For a typical automotive application using a 10 mΩ shunt to measure 10 A (100 mV full-scale), the 100 µV offset contributes 0.1% error before any temperature drift. The 75 µA bias flows through the shunt and adds a small voltage drop — about 0.75 µV on a 10 mΩ shunt — which is negligible in most designs. If the shunt resistance is higher (e.g., 100 mΩ for lower current ranges), the bias-induced error becomes proportionally larger and may need calibration. ## Package and mounting for the automotive assembly line Housed in a SOT-23-6 surface-mount package, the INA181A1QDBVRQ1 is compatible with standard reflow soldering processes used in automotive PCB assembly.","metaTitle":"INA181A1QDBVRQ1 Current Sense Amplifier, AEC-Q100, 350 kHz","metaDescription":"TI INA181A1QDBVRQ1 automotive current sense amplifier, AEC-Q100 qualified, 350 kHz bandwidth, 2V/µs slew rate, rail-to-rail output, SOT-23-6.","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":"2V/µs","Output Type":"Rail-to-Rail","Mounting Type":"Surface Mount","-3db Bandwidth":"350 kHz","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)","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/f057a585d10d813f7cb464598973c0cf.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the bandwidth of INA181A1QDBVRQ1?","answer":"The -3 dB bandwidth is 350 kHz, with a slew rate of 2 V/µs. This bandwidth supports monitoring of PWM signals up to several tens of kilohertz with good fidelity."},{"question":"What is the supply current of INA181A1QDBVRQ1?","answer":"This low current makes it suitable for always-on monitoring in battery-backed automotive modules."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/INA181A1QDBVRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/INA181A1QDBVRQ1 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}}