{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4377FAUA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4377FAUAT","canonicalUrl":"https://icboms.com/analog-devices/MAX4377FAUAT","factsUrl":"https://icboms.com/api/mcp/products/MAX4377FAUA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX4377FAUA+T, dual current sense amplifier, 2 MHz -3dB bandwidth, 10V/µs slew rate, 3 V to 28 V supply, 1 mA per channel supply current, -40°C to 125°C, 8-uMAX/uSOP package.","salesMarkdown":"## What this current sense amplifier does on your board The MAX4377FAUA+T is a dual-channel current sense amplifier from Analog Devices, designed to measure current by sensing the voltage drop across an external shunt resistor. It delivers a 2 MHz -3dB bandwidth and a 10V/µs slew rate, which means it can track fast current transients in switching power supplies, motor drives, and solenoid drivers without significant lag. The part operates from a single 3 V to 28 V supply, drawing only 1 mA per channel, so it fits into both low-power and high-side sensing applications without a separate regulator. Rated for -40°C to 125°C, it handles industrial and automotive under-hood environments. The 8-uMAX/uSOP package is a small surface-mount footprint, suitable for dense PCB layouts. ## Slew rate and bandwidth — what they mean for your design A 10V/µs slew rate means the amplifier output can swing 10 V in one microsecond. For a current sense amplifier, that translates to how fast it can report a fault condition like an overcurrent or short circuit. If your controller needs to shut down a MOSFET within a few microseconds of a fault, this part keeps up. The 2 MHz bandwidth sets the upper frequency of current signals it can accurately reproduce — useful for sensing ripple current in a buck converter or detecting fast load steps. Together, these specs tell you the MAX4377FAUA+T is not a slow, general-purpose op-amp; it is built for real-time current monitoring in power electronics. ## Supply range and quiescent current — fitting into the power budget The 3 V to 28 V supply span covers common rails. Each channel draws 1 mA quiescent current, so the dual amplifier totals 2 mA. ## Package and mounting The MAX4377FAUA+T comes in an 8-pin uMAX/uSOP package, 3.00 mm body width. It is a surface-mount part, so it goes through reflow — no socket, no hand-soldering unless you have a steady hand and a fine tip. The Tape & Reel or Cut Tape options mean it feeds into a pick-and-place machine without extra handling. On site, if you are swapping this in a repair, you will want a hot-air station or a soldering iron with a fine chisel tip. No lab bench required, but a steady hand helps. ## Lifecycle and sourcing — active and available The ROHS3 compliance means it meets current environmental regulations for lead-free assembly. Sourcing is straightforward: we can quote this against an RFQ with current pricing and availability confirmed at the time of your request. If you need a dual current sense amplifier in an 8-uMAX package with similar bandwidth and supply range, this is the part to specify into your BOM.","metaTitle":"MAX4377FAUA+T Current Sense Amplifier, 2 MHz, 10V/µs","metaDescription":"MAX4377FAUA+T dual current sense amplifier from Analog Devices. 2 MHz bandwidth, 10V/µs slew rate, 3 V to 28 V supply, -40°C to 125°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Slew Rate":"10V/µs","Mounting Type":"Surface Mount","-3db Bandwidth":"2 MHz","Amplifier Type":"Current Sense","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"1mA (x2 Channels)","Number of Circuits":"2","Current - Input Bias":"120 µA","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"8-uMAX/uSOP","Voltage - Supply Span (Max)":"28 V","Voltage - Supply Span (Min)":"3 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.67","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.67000","currency":"USD"},{"qty":10,"price":"$3.29300","currency":"USD"},{"qty":25,"price":"$3.11320","currency":"USD"},{"qty":100,"price":"$2.69820","currency":"USD"},{"qty":250,"price":"$2.55984","currency":"USD"},{"qty":500,"price":"$2.29694","currency":"USD"},{"qty":1000,"price":"$1.93718","currency":"USD"},{"qty":2500,"price":"$1.84032","currency":"USD"},{"qty":5000,"price":"$1.77114","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/92f467f7d798d9c01aa80a2ecfdcccce.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the bandwidth of the MAX4377FAUA+T?","answer":"The MAX4377FAUA+T has a -3dB bandwidth of 2 MHz, which allows it to accurately sense current signals up to that frequency — suitable for ripple current monitoring in switching converters and fast load-step detection."},{"question":"What is the closest pin-compatible alternative to the MAX4377FAUA+T?","answer":"Within the same family, parts like the MAX4376 (single channel) or MAX4378 (quad channel) share the same basic architecture but differ in channel count and package. For a dual-channel pin-compatible alternative, check the MAX4377F series variants — the suffix indicates different gain options and temperature ranges, but the pinout and package are consistent across the family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4377FAUAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4377FAUAT 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}}