{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4729EXT+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4729EXTT","canonicalUrl":"https://icboms.com/analog-devices/MAX4729EXTT","factsUrl":"https://icboms.com/api/mcp/products/MAX4729EXT%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX4729EXT+T, SPDT analog switch, 1 circuit, 5.5Ohm on-resistance, 300MHz bandwidth, -67dB crosstalk @ 1MHz, 1.8V to 5.5V supply, SC-70-6 package, -40°C to 85°C.","salesMarkdown":"## What this SPDT switch brings to a signal chain The Analog Devices MAX4729EXT+T is a single-pole double-throw (SPDT) analog switch in a compact SC-70-6 package. It routes one common terminal to either of two selectable outputs with a maximum on-resistance of 5.5 ohms, making it a fit for low-voltage signal routing in test equipment, audio path switching, or RF front-end selection where insertion loss matters. The 300 MHz -3 dB bandwidth and -67 dB crosstalk at 1 MHz mean this part can handle high-speed analog or digital signals without bleeding between channels — useful for multiplexing video lines or switching RF paths up to the low UHF band. Supply range from 1.8 V to 5.5 V covers common logic rails without needing a separate analog supply, simplifying the power tree on a mixed-signal board. ## Switching speed and charge injection — what they mean for the BOM Maximum turn-on time of 45 ns and turn-off time of 26 ns allow this switch to keep up with fast control signals — think sample-and-hold front-ends or clocked multiplexers where the switch must settle before the next acquisition cycle. Charge injection of 3 pC is low enough that it won't glitch a precision ADC input beyond a few millivolts, provided the source impedance is moderate. Channel-to-channel on-resistance matching of 50 milliohms keeps the insertion loss consistent between the two signal paths — a detail if you are switching gain-setting resistors or matched attenuators. ## Package and mounting — fits tight layouts Housed in a 6-lead SC-70 (SOT-363) package, the MAX4729EXT+T takes up roughly 2 mm × 2 mm of board area. Surface-mount assembly is standard; the small footprint leaves room for passives in dense RF or portable designs. Operating temperature range of -40°C to 85°C covers industrial and outdoor telecom enclosures — no issue for a base-station transceiver or a panel-mount controller running warm. ## Sourcing and lifecycle — active, no obsolescence concern The MAX4729EXT+T carries an active lifecycle status and is RoHS3 compliant. No end-of-life notice or last-time-buy window is in effect, so it can be specified into new BOMs without near-term requalification risk.","metaTitle":"MAX4729EXT+T Analog Devices SPDT Switch, 5.5Ohm, SC-70-6","metaDescription":"MAX4729EXT+T SPDT analog switch from Analog Devices. 5.5 ohm on-resistance, 300 MHz bandwidth, -67 dB crosstalk. 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)","Crosstalk":"-67dB @ 1MHz","Mounting Type":"Surface Mount","-3db Bandwidth":"300MHz","Package / Case":"6-TSSOP, SC-88, SOT-363","Switch Circuit":"SPDT","lifecycle_stage":"eol_hot","Charge Injection":"3pC","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"SC-70-6","On-State Resistance (Max)":"5.5Ohm","Switch Time (Ton, Toff) (Max)":"45ns, 26ns","Voltage - Supply, Single (V+)":"1.8V ~ 5.5V","Current - Leakage (IS(off)) (Max)":"2nA","Multiplexer/Demultiplexer Circuit":"2:1","Channel Capacitance (CS(off), CD(off))":"6.5pF","Channel-to-Channel Matching (ΔRon)":"50mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.93","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.93000","currency":"USD"},{"qty":10,"price":"$3.53400","currency":"USD"},{"qty":25,"price":"$3.34040","currency":"USD"},{"qty":100,"price":"$2.89520","currency":"USD"},{"qty":250,"price":"$2.74668","currency":"USD"},{"qty":500,"price":"$2.46460","currency":"USD"},{"qty":1000,"price":"$2.07858","currency":"USD"},{"qty":2500,"price":"$1.97465","currency":"USD"},{"qty":5000,"price":"$1.90042","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4a700b1cef85f8194ae23c188c9946f1.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4729EXTT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4729EXTT 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}}