{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX9728AETC+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX9728AETC","canonicalUrl":"https://icboms.com/analog-devices/MAX9728AETC","factsUrl":"https://icboms.com/api/mcp/products/MAX9728AETC%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DirectDrive® Class AB stereo headphone amplifier, MAX9728AETC+, 60mW x 2 into 32Ω, 4.5V-5.5V supply, 12-TQFN (3x3mm), active.","salesMarkdown":"## Headphone amp with DirectDrive — what the 60 mW rating means on the bench The MAX9728AETC+ is a Class AB stereo headphone amplifier from Analog Devices' DirectDrive series, delivering 60 mW per channel into a 32 Ω load. That output level is enough to drive most consumer and pro-audio headphones to comfortable listening levels without the pop or thump you get from a single-supply amp that needs a DC-blocking cap — the DirectDrive architecture generates a regulated negative rail internally, so the output sits at 0 VDC and the headphones couple directly. ## Package, footprint, and what the TQFN tells you about rework If you are replacing a failed part on a board, check that the pad layout matches — the centre pad is the thermal and ground connection, and a missing via under it traps heat. ## Protection features and the DirectDrive advantage On-chip short-circuit and thermal protection mean the output stage shuts down before a fault cooks the die — useful when a headphone jack gets yanked or a solder bridge shorts the output to ground during assembly. The shutdown pin lets a microcontroller or a power-management sequencer put the amp into a low-power state when the audio path is idle. The DirectDrive series eliminates the need for large DC-blocking capacitors on the output, which saves board area and removes the low-frequency roll-off those caps introduce. For a portable design where every mm² counts, that is a real advantage over a conventional single-supply headphone amp.","metaTitle":"MAX9728AETC+ Analog Devices Class AB Stereo Headphone Amp","metaDescription":"MAX9728AETC+ Analog Devices Class AB stereo headphone amplifier, 60mW x 2 into 32Ω, DirectDrive series, active production, RoHS3. Order via RFQ.","metaKeywords":null},"attributes":{"series":"DirectDrive®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Class AB","Series":"DirectDrive®","Package":"Tube","Features":"Depop, Short-Circuit and Thermal Protection, Shutdown","Output Type":"Headphones, 2-Channel (Stereo)","Mounting Type":"Surface Mount","Package / Case":"12-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"12-TQFN (3x3)","Max Output Power x Channels @ Load":"60mW x 2 @ 32Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.43","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.43000","currency":"USD"},{"qty":10,"price":"$1.28100","currency":"USD"},{"qty":25,"price":"$1.21600","currency":"USD"},{"qty":100,"price":"$0.99890","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MAX9728AETC+?","answer":"The DirectDrive series includes other stereo headphone amps in similar TQFN packages, but pin assignments and supply voltages differ — confirm the footprint against your PCB layout before substituting."},{"question":"What is the MAX9728AETC+ output power into 32 ohms?","answer":"The MAX9728AETC+ delivers 60 mW per channel into a 32 Ω load, which is typical for driving consumer headphones to a comfortable listening level without external DC-blocking capacitors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX9728AETC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX9728AETC 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}}