{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4377FAUA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4377FAUA","canonicalUrl":"https://icboms.com/analog-devices/MAX4377FAUA","factsUrl":"https://icboms.com/api/mcp/products/MAX4377FAUA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX4377FAUA+, dual current-sense amplifier, 2 MHz -3 dB bandwidth, 10 V/µs slew rate, 3 V to 28 V supply, 1 mA per channel, -40°C to 125°C, 8-uMAX/uSOP package.","salesMarkdown":"## Dual current-sense amplifier for precision monitoring The Analog Devices MAX4377FAUA+ is a dual current-sense amplifier in an 8-uMAX/uSOP surface-mount package. It integrates two independent current-sense circuits, each drawing 1 mA supply current, making it suited for multi-rail monitoring in a compact footprint. The amplifier operates from a 3 V to 28 V supply span, covering common 5 V and 12 V power rails without an extra regulator. Its -40°C to 125°C temperature range qualifies it for industrial and automotive environments such as motor drives, outdoor telecom, and engine-bay electronics. ## Bandwidth and slew rate — what they mean for your measurement The 2 MHz -3 dB bandwidth sets the upper frequency of current signals the amplifier can faithfully reproduce. For a 12 V rail switching at 500 kHz, this gives enough margin to capture the average current without significant attenuation. A 10 V/µs slew rate means the output can swing from 0 V to 5 V in 500 ns, which is fast enough to respond to overcurrent events in a typical power-stage protection loop. The 120 µA input bias current is a design consideration when using high-value sense resistors — it adds a small offset voltage across the sense element. ## Package and supply — board-fit details The MAX4377FAUA+ comes in an 8-TSSOP / 8-MSOP (0.118\", 3.00 mm width) package, supplied in Tube. The supplier device package is 8-uMAX/uSOP, which is the same footprint as a standard MSOP-8. Surface-mount assembly is straightforward with standard reflow profiles. ## Lifecycle and compliance It is ROHS3 compliant, so it meets current European RoHS requirements without exemption. For new designs, this part carries no imminent LTB risk.","metaTitle":"MAX4377FAUA+ Current Sense Amplifier, 2 MHz, 10 V/µs","metaDescription":"MAX4377FAUA+ dual current-sense amplifier from Analog Devices. 2 MHz bandwidth, 10 V/µs slew rate, 3 V to 28 V supply, -40°C to 125°C. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","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":"$4.55","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.55000","currency":"USD"},{"qty":10,"price":"$4.08600","currency":"USD"},{"qty":25,"price":"$3.86320","currency":"USD"},{"qty":100,"price":"$3.34820","currency":"USD"},{"qty":250,"price":"$3.17644","currency":"USD"},{"qty":500,"price":"$2.85022","currency":"USD"},{"qty":1000,"price":"$2.40380","currency":"USD"},{"qty":2500,"price":"$2.28361","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/92f467f7d798d9c01aa80a2ecfdcccce.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4377FAUA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4377FAUA 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}}