{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"INA240A3DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"INA240A3DR","canonicalUrl":"https://icboms.com/texas-instruments/INA240A3DR","factsUrl":"https://icboms.com/api/mcp/products/INA240A3DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments INA240A3DR, Current Sense Amplifier, 1 Circuit, 2V/µs Slew Rate, 400 kHz -3dB Bandwidth, 8-SOIC (0.154\", 3.90mm Width), Surface Mount, -40°C ~ 125°C.","salesMarkdown":"## Precision current sense in an 8-SOIC Its 5 µV input offset voltage and 400 kHz bandwidth make it a fit for motor-drive phase monitoring, solenoid current control, and DC-DC converter output sensing where you need both DC accuracy and enough speed to catch switching transients. The 400 kHz -3 dB bandwidth sets the usable signal frequency. For a PWM-driven load switching at 20 kHz, the amplifier tracks the fundamental and several harmonics, giving a faithful representation of the average current. Input bias current is 90 µA — typical for a current-sense amplifier with a low-impedance shunt path. The shunt value should be kept low enough that the voltage drop from bias current is negligible compared to the signal. ## Package and supply — field-fit checklist Housed in an 8-SOIC package, the INA240A3DR uses a standard 0.154-inch-wide body with 1.27 mm pin pitch. The footprint matches any generic SOIC-8 land pattern, and the pins are well-spaced for hand-soldering or rework with a standard iron — no hot-air station needed for a field swap. Supply current is 1.8 mA, which keeps the self-heating low and the thermal budget manageable even in a tightly packed board. Surface-mount assembly is the only mounting option — no through-hole variant.","metaTitle":"INA240A3DR Current-Sense Amplifier, 400 kHz, 8-SOIC","metaDescription":"TI INA240A3DR current-sense amplifier: 2V/µs slew rate, 400 kHz bandwidth, 5 µV offset, 2.7-5.5 V supply, -40 to 125°C, 8-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Packaging":"Tape & Reel (TR) Cut Tape (CT)","Slew Rate":"2V/µs","Output Type":"-","Part Status":"Active","Mounting Type":"Surface Mount","-3db Bandwidth":"400 kHz","Amplifier Type":"Current Sense","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"1.8mA","Number of Circuits":"1","Base Product Number":"INA240","Current - Input Bias":"90 µA","Operating Temperature":"-40°C ~ 125°C","Voltage - Input Offset":"5 µV","Supplier Device Package":"8-SOIC","Voltage - Supply Span (Max)":"5.5 V","Voltage - Supply Span (Min)":"2.7 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.4900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b914b1df9f950ea14b0535b1205113bf.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/INA240A3DR/alternatives.json"},"ai":{"faq":[{"question":"Is the INA240A3DR a direct replacement for the INA240A2?","answer":"The INA240A3 and INA240A2 are gain-grade variants within the same INA240 family. The A3 variant has a fixed gain of 100 V/V, while the A2 is 50 V/V. They share the same pinout, package, and supply range, so a direct swap is possible if the system gain requirement changes — but the feedback network around the shunt must be re-evaluated for the different gain."},{"question":"What is the bandwidth of the INA240A3DR?","answer":"The -3 dB bandwidth is 400 kHz. Combined with the 2 V/µs slew rate, the amplifier accurately reproduces current waveforms up to several hundred kilohertz, suitable for PWM switching frequencies in the tens of kilohertz range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/INA240A3DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/INA240A3DR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}