{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"INA191A2IYFDR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"INA191A2IYFDR","canonicalUrl":"https://icboms.com/texas-instruments/INA191A2IYFDR","factsUrl":"https://icboms.com/api/mcp/products/INA191A2IYFDR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Zero-Drift series, INA191A2IYFDR current-sense amplifier, single circuit, 37 kHz gain bandwidth, 0.3 V/µs slew rate, rail-to-rail output, 1.7 V to 5.5 V supply, 43 µA supply current, 6-DSBGA package, -40 to 125 °C operating temperature.","salesMarkdown":"## What this current-sense amplifier does on your board It measures current across a shunt resistor by amplifying the differential voltage, and its rail-to-rail output lets it swing close to the supply rails — useful when feeding an ADC with a limited reference range. The Zero-Drift architecture keeps the 2.5 µV input offset voltage stable over temperature, so you get accurate readings even at low millivolt drops across the shunt. ## 43 µA supply current and 37 kHz bandwidth — the trade-off The 37 kHz gain-bandwidth product limits the signal bandwidth — you won't use it for fast overcurrent detection or switching-frequency ripple measurement. It's sized for DC or low-frequency current sensing where the power budget is tight and the signal is slow. ## Temperature range and package reality Rated from -40 to 125 °C, the INA191A2IYFDR covers automotive under-hood and industrial environments. The 6-DSBGA package is a wafer-level chip-scale package — no leads, just solder balls on the bottom. That means the board footprint is tiny, but rework requires a hot-air profile suited for BGA-style packages. The supplier device package dimensions are 1.17x0.77 mm, so plan your stencil aperture and pad geometry accordingly.","metaTitle":"INA191A2IYFDR Zero-Drift Current-Sense Amplifier, 37 kHz","metaDescription":"Texas Instruments INA191A2IYFDR Zero-Drift current-sense amplifier, 43 µA supply, 2.5 µV offset, rail-to-rail output, -40 to 125 °C.","metaKeywords":null},"attributes":{"series":"Zero-Drift","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"Zero-Drift","Package":"Tape & Reel (TR); Cut Tape (CT)","Slew Rate":"0.3V/µs","Output Type":"Rail-to-Rail","Mounting Type":"Surface Mount","Amplifier Type":"Current Sense","Package / Case":"6-XFBGA, DSBGA","lifecycle_stage":"eol_hot","Current - Supply":"43µA","Number of Circuits":"1","Current - Input Bias":"100 pA","Operating Temperature":"-40°C ~ 125°C (TA)","Gain Bandwidth Product":"37 kHz","Voltage - Input Offset":"2.5 µV","Supplier Device Package":"6-DSBGA (1.17x0.77)","Voltage - Supply Span (Max)":"5.5 V","Voltage - Supply Span (Min)":"1.7 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.92","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.92000","currency":"USD"},{"qty":10,"price":"$2.62400","currency":"USD"},{"qty":25,"price":"$2.48040","currency":"USD"},{"qty":100,"price":"$2.14970","currency":"USD"},{"qty":250,"price":"$2.03944","currency":"USD"},{"qty":500,"price":"$1.82998","currency":"USD"},{"qty":1000,"price":"$1.56000","currency":"USD"},{"qty":3000,"price":"$1.56000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2b17da36d23c078c4c749ec3bfd8e6cc.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional equivalent to INA191A2IYFDR?","answer":"Within the same Zero-Drift current-sense family, the INA254A1IPWAR is a single-channel part with a wider 350 kHz bandwidth and 2.4 V/µs slew rate, but it draws 1.8 mA supply current — significantly more than the 43 µA of the INA191A2IYFDR. The choice depends on whether your priority is low power or higher signal bandwidth."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/INA191A2IYFDR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/INA191A2IYFDR 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}}