{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX399EGE","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX399EGE","canonicalUrl":"https://icboms.com/analog-devices/MAX399EGE","factsUrl":"https://icboms.com/api/mcp/products/MAX399EGE","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX399EGE precision dual 4-channel analog multiplexer, SP4T switch circuit, 100 Ohm on-resistance, 16-VQFN Exposed Pad package, surface mount.","salesMarkdown":"## What the -92 dB crosstalk actually means for your signal chain The MAX399EGE is a precision dual 4:1 multiplexer (two independent SP4T switches) from Analog Devices' MAX399 family. Its -92 dB crosstalk at 100 kHz means that when you are switching a 1 Vpp signal on channel 1, less than 250 µV of that signal bleeds into channel 2 at the same frequency. For a 16-bit ADC with a 5 V reference, that is well below 1 LSB of interference — the mux does not limit your system's noise floor in most precision analog front-ends. The 100 Ohm max on-resistance tells you the series resistance the signal sees when the channel is closed. Driving a 10 kOhm load, the voltage error from Ron is about 1%. For a 1 kOhm load, it is a 10% divider — you need a buffer amplifier after the mux for low-impedance loads. The 6 Ohm channel-to-channel matching means the Ron difference between any two channels is at most 6 Ohms, which keeps gain errors consistent across channels in a multiplexed system. ## Supply flexibility — single or dual rails The total supply span is the same either way — 6 V to 16 V. With dual rails, the analog signal can swing symmetrically around ground, which is useful for bipolar sensor signals like thermocouple outputs or strain-gauge bridges. On a single rail, the signal must be biased above ground to stay within the common-mode range. The 150 ns max switch time (both Ton and Toff) means the mux settles fast enough for audio-frequency scanning and low-speed data acquisition. At 1 MHz switching, the 150 ns transition is 15% of the period — fine for muxing before a SAR ADC that samples at 100 kSPS. Not fast enough for video or RF switching, where sub-10 ns parts are needed. ## Package and temperature — board-fit reality The MAX399EGE comes in a 16-VQFN with exposed pad, 4 mm x 4 mm body (supplier device package 16-QFN). The part is rated for the full range, so no derating needed for factory-floor enclosures or outdoor telecom cabinets. Not qualified for under-hood automotive (that would need -40°C to +125°C and AEC-Q100). ## Active production — sourcing posture The package is listed as Bulk delivery — this is the shipping format (tubes or trays), not a package type. The actual IC package is the 16-VQFN Exposed Pad described above. Bulk packaging is typical for engineering samples and low-volume production runs; for high-volume tape-and-reel, check the -TR suffix variant if available.","metaTitle":"MAX399EGE Analog Devices SP4T Mux, 2-Circuit, 16-QFN","metaDescription":"MAX399EGE precision dual 4:1 multiplexer, SP4T, 100 Ohm Ron, -92dB crosstalk, industrial temp, active production. Order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Crosstalk":"-92dB @ 100kHz","Mounting Type":"Surface Mount","Package / Case":"16-VQFN Exposed Pad","Switch Circuit":"SP4T","lifecycle_stage":"eol_hot","Charge Injection":"2pC","Number of Circuits":"2","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"16-QFN (4x4)","On-State Resistance (Max)":"100Ohm","Voltage - Supply, Dual (V±)":"±3V ~ 8V","Switch Time (Ton, Toff) (Max)":"150ns, 150ns","Voltage - Supply, Single (V+)":"3V ~ 15V","Current - Leakage (IS(off)) (Max)":"100pA","Multiplexer/Demultiplexer Circuit":"4:1","Channel Capacitance (CS(off), CD(off))":"11pF, 20pF","Channel-to-Channel Matching (ΔRon)":"6Ohm (Max)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.07","stockQuantity":0,"priceTiers":[{"qty":281,"price":"$1.07000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9b3a2b2abb79d02ab9454367e5f90a2b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the charge injection spec and why does it matter?","answer":"The MAX399EGE has a charge injection of 2 pC typical. This is the amount of charge dumped onto the signal path when the switch transitions from on to off or vice versa. For a 10 nF sampling capacitor on the output of the mux, 2 pC creates a 200 µV glitch. At 12-bit resolution with a 5 V reference (1.22 mV LSB), that glitch is about 1/6 of an LSB — negligible for most applications. For 16-bit systems with a 5 V reference (76 µV LSB), the glitch is about 2.6 LSBs and may need a sample-and-hold settling delay after the mux switches before the ADC conversion starts."},{"question":"What is the leakage current and how does it affect high-impedance inputs?","answer":"The MAX399EGE has a maximum off-channel leakage current of 100 pA. For a 10 MOhm source impedance, 100 pA creates a 1 mV offset voltage across the source resistance. For a 100 MOhm source (like a pH probe or photodiode amplifier), the offset is 10 mV — significant at 16-bit levels. The leakage doubles roughly every 10°C above 25°C, so at 85°C the worst-case leakage could be around 1.6 nA, creating a 16 mV offset into a 10 MOhm source. Plan your input buffer accordingly if the source impedance is above 1 MOhm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX399EGE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX399EGE 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}}