{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"INA190A2IRSWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"INA190A2IRSWR","canonicalUrl":"https://icboms.com/texas-instruments/INA190A2IRSWR","factsUrl":"https://icboms.com/api/mcp/products/INA190A2IRSWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Zero-Drift series, INA190A2IRSWR current sense amplifier, single circuit, 37 kHz bandwidth, 0.25 V/µs slew rate, rail-to-rail output, 1.7 V to 5.5 V supply, 10-UQFN package, -40°C to 125°C.","salesMarkdown":"## Zero-drift current sense — why the 2 µV offset matters The INA190A2IRSWR is a zero-drift current sense amplifier from Texas Instruments, designed to measure voltage across a shunt resistor with minimal error. Its 2 µV input offset voltage and 500 pA input bias current let it resolve microvolt-level drops accurately, which is the difference between a clean current reading and a noisy one in precision motor-drive or battery-monitoring loops. The 37 kHz bandwidth and 0.25 V/µs slew rate suit it for DC-to-low-frequency AC sensing — think solenoid current, heater load, or battery charge/discharge profiles — not high-speed switching transients. ## Supply range and temperature — where it fits Rail-to-rail output keeps the dynamic range usable even at low supply voltages, which matters when the ADC reference is the same rail. ## Package and footprint Housed in a 10-UFQFN with supplier package 10-UQFN (1.8x1.4 mm), it is a surface-mount device for compact layouts. The small footprint suits dense mixed-signal boards where every mm² counts, but the fine-pitch pads need a well-tuned stencil and reflow profile — MSL 3 handling applies per the class.","metaTitle":"INA190A2IRSWR Current Sense Amplifier, Zero-Drift, 37 kHz BW","metaDescription":"Texas Instruments INA190A2IRSWR zero-drift current sense amplifier. 2 µV offset, 40 µA supply, -40°C to 125°C. Active, ROHS3.","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":"0.25V/µs","Output Type":"Rail-to-Rail","Mounting Type":"Surface Mount","-3db Bandwidth":"37 kHz","Amplifier Type":"Current Sense","Package / Case":"10-UFQFN","lifecycle_stage":"eol_hot","Current - Supply":"40µA","Number of Circuits":"1","Current - Input Bias":"500 pA","Operating Temperature":"-40°C ~ 125°C (TA)","Gain Bandwidth Product":"37 kHz","Voltage - Input Offset":"2 µV","Supplier Device Package":"10-UQFN (1.8x1.4)","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/f3675670cc497fe5bf22b06f649b6ee9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the gain of the INA190A2IRSWR?","answer":"The INA190A2IRSWR is a current sense amplifier with a fixed gain of 50 V/V (the A2 variant in the INA190 family). The datasheet specifies the gain accuracy and drift; the 2 µV input offset ensures the error contribution from the amplifier itself stays small across temperature."},{"question":"Can I use INA190A2IRSWR to replace INA190A1IRSWR?","answer":"The INA190A1IRSWR has a gain of 25 V/V, while the INA190A2IRSWR has 50 V/V. Both are pin-compatible and share the same package and supply range. If your shunt value and ADC range can accommodate the doubled gain, the A2 is a drop-in replacement with better resolution on the same shunt drop."},{"question":"What is the bandwidth of the INA190A2IRSWR?","answer":"The -3 dB bandwidth is 37 kHz, with a gain-bandwidth product of 37 kHz. This is adequate for DC-to-audio-frequency current monitoring but not for high-speed switching waveforms above a few kilohertz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/INA190A2IRSWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/INA190A2IRSWR 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}}