{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4638EUE+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4638EUE~3","canonicalUrl":"https://icboms.com/analog-devices/MAX4638EUE~3","factsUrl":"https://icboms.com/api/mcp/products/MAX4638EUE%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX4638EUE+ 8:1 single-ended CMOS analog multiplexer, 3.5Ω max on-resistance, 50MHz -3dB bandwidth, 18ns/7ns switching, 16-TSSOP package, -40°C to +85°C operating range.","salesMarkdown":"The MAX4638EUE+ is a single 8-channel CMOS analog multiplexer from Analog Devices (formerly Maxim Integrated) that routes one of eight inputs to a common output. Its 3.5Ω max on-resistance keeps signal attenuation low in precision analog paths — you don't need an output buffer for most sub-10kΩ loads. Channel-to-channel matching holds within 100mΩ, so gain errors across channels stay tight without per-channel calibration. Supply flexibility covers the common digital rails: single-supply from 1.8V up to 5.5V, or dual ±2.5V if the design needs bipolar signal swing. The -3dB bandwidth of 50MHz and crosstalk of -85dB at 1MHz mean it handles video-rate multiplexing and audio switching without audible bleed-through. ## Switching speed and charge injection — timing budget factors Max turn-on time is 18ns, turn-off is 7ns. The asymmetry matters: if you're sequencing a multiplexed ADC input, the 18ns window is the one that sets the settling delay before the conversion starts. Charge injection of 13pC is moderate — fine for 12-bit systems with a sample-and-hold, but worth checking against the ADC's acquisition time in 16-bit designs. Off-leakage maxes at 250pA at 25°C, and channel capacitance is 9pF (source off) and 40pF (drain off). The 40pF drain capacitance loads the output bus — if you're paralleling multiple muxes on a shared analog bus, the total capacitance adds up and can limit settling time at high impedance. ## Package and rework — 16-TSSOP on a hot-air station The 16-TSSOP package (4.40mm body width, 0.65mm pitch) is a straightforward hand-solder or hot-air rework job. The 0.65mm pitch means a standard fine-tip iron or a hot-air nozzle at 300°C with a gentle airflow lifts the part clean without lifting pads. No thermal pad underneath, so the board layout is simpler than a QFN. Ships in Tube per the listing, which is fine for bench quantities. ## Lifecycle — active production, no obsolescence watch needed","metaTitle":"MAX4638EUE+ 8:1 Analog MUX, 3.5Ω Ron, 16-TSSOP","metaDescription":"MAX4638EUE+ 8:1 multiplexer with 3.5Ω max on-resistance, 50MHz bandwidth, -85dB crosstalk at 1MHz. Single 1.8V–5.5V or dual ±2.5V supply.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","Crosstalk":"-85dB @ 1MHz","Mounting Type":"Surface Mount","-3db Bandwidth":"50MHz","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Charge Injection":"13pC","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"16-TSSOP","On-State Resistance (Max)":"3.5Ohm","Voltage - Supply, Dual (V±)":"±2.5V","Switch Time (Ton, Toff) (Max)":"18ns, 7ns","Voltage - Supply, Single (V+)":"1.8V ~ 5.5V","Current - Leakage (IS(off)) (Max)":"250pA","Multiplexer/Demultiplexer Circuit":"8:1","Channel Capacitance (CS(off), CD(off))":"9pF, 40pF","Channel-to-Channel Matching (ΔRon)":"100mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.09","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.09000","currency":"USD"},{"qty":10,"price":"$6.40600","currency":"USD"},{"qty":25,"price":"$6.10800","currency":"USD"},{"qty":100,"price":"$5.30350","currency":"USD"},{"qty":250,"price":"$5.06516","currency":"USD"},{"qty":500,"price":"$4.61822","currency":"USD"},{"qty":1000,"price":"$4.02232","currency":"USD"},{"qty":2500,"price":"$3.87335","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the on-resistance (Ron) of MAX4638EUE+?","answer":"Maximum on-resistance is 3.5Ω across the rated supply and temperature range. Channel-to-channel matching is 100mΩ max, so the Ron variation between channels stays under a tenth of an ohm."},{"question":"What is the switching speed (Ton/Toff) of MAX4638EUE+?","answer":"Maximum turn-on time is 18ns, maximum turn-off is 7ns. The 18ns turn-on dominates the timing budget for multiplexed sampling applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4638EUE~3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4638EUE~3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}