{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"INA190A4IRSWT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"INA190A4IRSWT","canonicalUrl":"https://icboms.com/texas-instruments/INA190A4IRSWT","factsUrl":"https://icboms.com/api/mcp/products/INA190A4IRSWT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Zero-Drift Current Sense Amplifier, INA190A4IRSWT, 1 Circuit, 33 kHz GBW, 20 kHz -3dB Bandwidth, Rail-to-Rail Output, 10-UFQFN, Tape & Reel.","salesMarkdown":"## Precision current sensing with a 2 µV offset floor The INA190A4IRSWT is a zero-drift current-sense amplifier from Texas Instruments, packaged in a 10-UQFN (1.8x1.4 mm) — the smallest footprint in the INA190 family. Its 2 µV input offset voltage and 500 pA input bias current let it resolve microamp-level shunt drops without the thermal drift that plagues general-purpose op-amps in the same role. ## Bandwidth and transient response for real-time monitoring With a 33 kHz gain-bandwidth product and 20 kHz -3 dB bandwidth, this amplifier captures DC load changes and low-frequency ripple on the sense line — suitable for battery monitoring, solenoid current profiling, or overcurrent detection where the event time constant is above 50 µs. The 0.25 V/µs slew rate limits the output edge rate, so the downstream ADC or comparator sees a clean, settled signal without external filtering. The rail-to-rail output swings within 50 mV of the supply rails, preserving the full ADC input range when the sense resistor is sized for a 50 mV full-scale drop. ## Temperature grade and supply envelope The 1.7 V minimum supply means it can operate from a single lithium cell or a 1.8 V regulated rail, while the 5.5 V maximum covers 5 V systems without a secondary LDO.","metaTitle":"Texas Instruments INA190A4IRSWT Current Sense, 33 kHz GBW","metaDescription":"TI INA190A4IRSWT zero-drift current sense amp, 1.7-5.5 V supply, 2 µV offset, 40 µA supply, -40 to 125°C. Active, RoHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":"Zero-Drift","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"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":"20 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":"33 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":"$3.51","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.51000","currency":"USD"},{"qty":10,"price":"$3.14800","currency":"USD"},{"qty":25,"price":"$2.97640","currency":"USD"},{"qty":100,"price":"$2.57960","currency":"USD"},{"qty":250,"price":"$2.44732","currency":"USD"},{"qty":500,"price":"$2.19598","currency":"USD"},{"qty":1250,"price":"$1.87200","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f3675670cc497fe5bf22b06f649b6ee9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional alternative to the INA190A4IRSWT?","answer":"The INA254A1IPWAR is a zero-drift current-sense amplifier from the same TI family, but it offers a 350 kHz bandwidth and 2.4 V/µs slew rate — roughly 10× faster than the INA190A4IRSWT's 33 kHz GBW and 0.25 V/µs slew rate. The INA190A4IRSWT draws 40 µA supply current versus 100 µA for the INA254A1IPWAR, so the choice hinges on whether the application needs the higher bandwidth or the lower quiescent power. Both parts share the same 1.7-5.5 V supply range and -40 to 125°C temperature grade, but their packages differ (10-UQFN vs 8-VSSOP), so a direct PCB drop-in is not guaranteed without verifyin"}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/INA190A4IRSWT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/INA190A4IRSWT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}