{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"INA115BU","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"INA115BU","canonicalUrl":"https://icboms.com/texas-instruments/INA115BU","factsUrl":"https://icboms.com/api/mcp/products/INA115BU","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments INA115BU instrumentation amplifier, 1 circuit, 10 µV input offset, 0.6 V/µs slew rate, 1 MHz bandwidth, 16-SOIC package, tube.","salesMarkdown":"## Precision instrumentation amplifier in 16-SOIC The INA115BU is a single-channel instrumentation amplifier from Texas Instruments, designed for precision signal conditioning where low offset and low drift are critical. It delivers a 10 µV maximum input offset voltage and 500 pA input bias current, making it suitable for bridge sensors, thermocouple amplifiers, and medical instrumentation front-ends that must resolve microvolt-level signals without calibration. The 1 MHz -3 dB bandwidth and 0.6 V/µs slew rate define the usable signal frequency — the part handles DC-coupled signals up to roughly 100 kHz at full output swing before slew-rate limiting sets in. ## Supply range and single-supply operation Operating from a single supply as low as 4.5 V up to a dual supply of ±18 V (36 V total span), the INA115BU fits into both battery-powered 5 V systems and industrial ±15 V rails without a separate regulator. Quiescent current is 2.2 mA typical — low enough for multi-channel data-acquisition boards where each amplifier's supply draw adds up across 8 or 16 channels. Output can source or sink 20 mA, sufficient to drive the input of a successive-approximation ADC directly or a twisted-pair cable run up to a few metres. ## Package, temperature grade, and compliance Housed in a 16-pin SOIC wide-body (7.50 mm width), the INA115BU uses a standard footprint shared with many precision amplifiers — board layout reuse is straightforward if migrating from a similar SOIC-16 part. Rated for -40°C to +85°C industrial temperature range, it covers factory-floor enclosures, test equipment, and outdoor telecom shelters without derating. Sourced to order; availability and current pricing confirmed at RFQ.","metaTitle":"Texas Instruments INA115BU Instrumentation Amplifier","metaDescription":"Precision instrumentation amp, 10 µV offset, 0.6 V/µs slew rate, 1 MHz bandwidth. Active, ROHS3. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Package":"Tube","Slew Rate":"0.6V/µs","Mounting Type":"Surface Mount","-3db Bandwidth":"1 MHz","Amplifier Type":"Instrumentation","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"2.2mA","Number of Circuits":"1","Current - Input Bias":"500 pA","Operating Temperature":"-40°C ~ 85°C","Voltage - Input Offset":"10 µV","Supplier Device Package":"16-SOIC","Current - Output / Channel":"20 mA","Voltage - Supply Span (Max)":"36 V","Voltage - Supply Span (Min)":"4.5 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$15.61","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$15.61000","currency":"USD"},{"qty":10,"price":"$14.34200","currency":"USD"},{"qty":25,"price":"$13.74800","currency":"USD"},{"qty":100,"price":"$12.11300","currency":"USD"},{"qty":250,"price":"$11.51848","currency":"USD"},{"qty":500,"price":"$10.77536","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/08c692efa168f143c581b3b188ba3c02.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can the INA115BU replace the INA4290A2IRGVR in a design?","answer":"No — the INA4290A2IRGVR is a quad current-sense amplifier with a different pinout and function. The INA115BU is a single instrumentation amplifier; they are not drop-in replacements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/INA115BU","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/INA115BU 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}}