{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX9634WERS+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX9634WERST","canonicalUrl":"https://icboms.com/analog-devices/MAX9634WERST","factsUrl":"https://icboms.com/api/mcp/products/MAX9634WERS%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices nanoPower series, Current Sense Amplifier, MAX9634WERS+T, 1 Circuit, 4-WFBGA CSPBGA, Surface Mount, Tape & Reel / Cut Tape.","salesMarkdown":"## 1.1 µA supply current — what it means for a battery-powered sense node The MAX9634WERS+T is a single-channel current-sense amplifier from Analog Devices' nanoPower series, drawing just 1.1 µA from the supply rail. That quiescent current is the part's defining spec for battery-operated designs: a sensor node that sleeps most of the time and wakes to measure load current every few seconds will see the amplifier's own draw as a negligible fraction of the system budget. Gain-bandwidth product is 125 kHz, so the measurement bandwidth covers DC through low-frequency load transients — suitable for average-current monitoring in portable devices, battery fuel gauging, or power-rail supervision where the signal of interest changes slowly. Input offset voltage is 100 µV typical, setting the DC error floor. For a 10 mΩ sense resistor carrying 1 A, the 10 mV sense signal sees a 1% offset contribution from the amplifier alone — the designer budgets this against the target measurement accuracy. ## 4-UCSP (1x1 mm) — board-fit and assembly The part comes in a 4-bump wafer-level chip-scale package, 1x1 mm body (4-UCSP). No leads, no exposed paddle — the bumps are the only interface to the board. The solder-joint reliability depends on the PCB pad geometry matching the bump pitch and the reflow profile following the JEDEC moisture sensitivity level for the package. Surface-mount only — no through-hole equivalent exists. Operating temperature range is -40°C to 85°C, covering industrial indoor and outdoor gear but not extended automotive or under-hood environments.","metaTitle":"MAX9634WERS+T nanoPower Current Sense, 1.1 µA, 4-UCSP","metaDescription":"Analog Devices MAX9634WERS+T nanoPower current-sense amplifier: 1.1 µA supply, 125 kHz GBW, 4-UCSP (1x1 mm). Active, ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":"nanoPower","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Series":"nanoPower","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Amplifier Type":"Current Sense","Package / Case":"4-WFBGA, CSPBGA","lifecycle_stage":"eol_hot","Current - Supply":"1.1µA","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C","Gain Bandwidth Product":"125 kHz","Voltage - Input Offset":"100 µV","Supplier Device Package":"4-UCSP (1x1)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.18","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.18000","currency":"USD"},{"qty":10,"price":"$1.95400","currency":"USD"},{"qty":25,"price":"$1.84320","currency":"USD"},{"qty":100,"price":"$1.57040","currency":"USD"},{"qty":250,"price":"$1.47460","currency":"USD"},{"qty":500,"price":"$1.29028","currency":"USD"},{"qty":1000,"price":"$1.06908","currency":"USD"},{"qty":2500,"price":"$0.99536","currency":"USD"},{"qty":5000,"price":"$0.95849","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What package does MAX9634WERS+T use?","answer":"4-bump wafer-level chip-scale package, 4-UCSP (1x1 mm body)."},{"question":"What is the supply current of MAX9634WERS+T?","answer":"1.1 µA quiescent supply current — the key spec for battery-powered current-sense applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX9634WERST","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX9634WERST when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}