{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4173FESA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4173FESAT","canonicalUrl":"https://icboms.com/analog-devices/MAX4173FESAT","factsUrl":"https://icboms.com/api/mcp/products/MAX4173FESA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX4173FESA+T, Current Sense Amplifier, 1 Circuit, 1.4 MHz -3dB Bandwidth, 420 µA Supply, 3V to 28V Supply Span, 8-SOIC Package, -40°C to 85°C.","salesMarkdown":"## What this current sense amplifier is and where it fits The MAX4173FESA+T is a single-channel current sense amplifier that monitors current by measuring voltage drop across an external sense resistor. It delivers a ground-referenced output voltage proportional to the sensed current. ## Supply range and temperature grade — what they mean for the BOM The 3 V minimum supply means this part works from a single lithium cell or a 3.3 V regulated rail without a boost converter. The 28 V maximum covers 24 V industrial buses and 12 V automotive systems with headroom for load-dump transients. The -40°C to 85°C operating range suits outdoor telecom cabinets, factory-floor sensors, and under-hood automotive electronics that do not see continuous engine-bay heat. If the design lives in a -40°C to 125°C environment, this temperature grade is the boundary to watch — it is rated for industrial, not full automotive under-hood. ## Package and mounting The 8-SOIC package (0.154\" body width, 3.90 mm) is a standard footprint that reflows cleanly with a hot-air station or a basic reflow profile. The part is surface-mount only; no through-hole variant exists. The Tape & Reel and Cut Tape options mean it can be ordered in production reels or as a single cut-tape piece for prototyping without committing to a full reel. ## Lifecycle and sourcing reality The MAX4173FESA+T carries an Active product status and is ROHS3 compliant.","metaTitle":"MAX4173FESA+T Current Sense Amplifier, 1.4 MHz, 8-SOIC","metaDescription":"MAX4173FESA+T current sense amplifier from Analog Devices. 1.4 MHz bandwidth, 420 µA supply, 3V to 28V range, 8-SOIC. 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)","Mounting Type":"Surface Mount","-3db Bandwidth":"1.4 MHz","Amplifier Type":"Current Sense","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"420µA","Number of Circuits":"1","Current - Input Bias":"700 µA","Operating Temperature":"-40°C ~ 85°C","Voltage - Input Offset":"300 µV","Supplier Device Package":"8-SOIC","Voltage - Supply Span (Max)":"28 V","Voltage - Supply Span (Min)":"3 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.05","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.05000","currency":"USD"},{"qty":10,"price":"$2.74000","currency":"USD"},{"qty":25,"price":"$2.59080","currency":"USD"},{"qty":100,"price":"$2.24520","currency":"USD"},{"qty":250,"price":"$2.13008","currency":"USD"},{"qty":500,"price":"$1.91132","currency":"USD"},{"qty":1000,"price":"$1.61196","currency":"USD"},{"qty":2500,"price":"$1.53136","currency":"USD"},{"qty":5000,"price":"$1.47379","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/41e22198a05a110fe681b4e8823d3070.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the bandwidth of MAX4173FESA+T?","answer":"The -3 dB bandwidth is 1.4 MHz, which is sufficient for capturing ripple from switching converters up to a few hundred kilohertz and for monitoring load transients in 12 V and 24 V systems."},{"question":"Can MAX4173FESA+T be used for low-side current sensing?","answer":"Yes, the common-mode input range of a current sense amplifier determines whether it can sense low-side (near ground) or high-side (near supply). The MAX4173FESA+T is a high-side current sense amplifier — its input common-mode range extends from 0 V to 28 V, so it works for both low-side and high-side sensing as long as the sense resistor voltage stays within that range. For low-side sensing with the resistor between the load and ground, the input common-mode voltage is near 0 V, which is within the device's range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4173FESAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4173FESAT 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}}