{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4758ETX+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4758ETX","canonicalUrl":"https://icboms.com/analog-devices/MAX4758ETX","factsUrl":"https://icboms.com/api/mcp/products/MAX4758ETX%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX4758ETX+ analog switch, 4-circuit DPDT, 850mOhm on-resistance, 50MHz bandwidth, -90dB crosstalk, 36-TQFN exposed pad, industrial temperature.","salesMarkdown":"## Active production — no end-of-life watch needed The MAX4758ETX+: ROHS3 compliant with no exemptions, so it clears global RoHS enforcement without special handling or documentation riders. ## Four DPDT switches in a 2:2 mux topology The MAX4758ETX+ integrates four independent DPDT (double-pole, double-throw) switches, each configured as a 2:2 multiplexer/demultiplexer — meaning each switch routes two signal paths simultaneously between two common ports. 850 mOhm maximum on-resistance keeps the voltage drop under 8.5 mV per mA of signal current, which is low enough for precision analog signal routing without calibration or gain-stage compensation. Channel-to-channel on-resistance matching is held to 100 mOhm max — this matters when the part is used in balanced audio or differential signal chains where gain matching between channels is critical. ## Switching speed and signal integrity Turn-on time is 140 ns max, turn-off is 50 ns max — fast enough for audio crosspoint switching, relay replacement, and low-frequency multiplexing, but not intended for high-speed digital buses like SPI or I²C at full clock rate. Crosstalk is -90 dB at 100 kHz, providing excellent channel-to-channel isolation for audio-frequency analog signals. The -3 dB bandwidth of 50 MHz confirms the part is designed for clean analog pass-through, not digital pulse trains. Charge injection is 40 pC typical — moderate for this class of switch. In sample-and-hold or DAC output switching, this level can produce a millivolt-level glitch on the hold capacitor; a downstream buffer or settling-time allowance in the acquisition window handles it. ## Supply flexibility and leakage Off-leakage current is 4 nA max at 25°C, rising with temperature per the usual junction-leakage doubling rule. For a 10 kΩ source impedance, 4 nA produces a 40 µV offset error — negligible in most audio and instrumentation paths. Channel capacitance is 180 pF off (source) and 300 pF off (drain) — these values, combined with the 850 mOhm on-resistance, set the bandwidth ceiling. The 50 MHz -3 dB point is consistent with a 300 pF load into 50 Ω. ## 36-TQFN with exposed pad The package is surface-mount, suited for automated assembly in dense mixed-signal boards. This covers factory-floor enclosures, outdoor telecom cabinets, and test equipment without requiring the wider automotive or military temp range.","metaTitle":"MAX4758ETX+ Analog Devices 4x DPDT Switch, 850mOhm, 36-TQFN","metaDescription":"MAX4758ETX+ active production analog switch from Analog Devices. 4 DPDT circuits, 850mOhm R_on, -90dB crosstalk, 1.8-5.5V supply. Industrial temp range.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Package":"Tube","Crosstalk":"-90dB @ 100kHz","Mounting Type":"Surface Mount","-3db Bandwidth":"50MHz","Package / Case":"36-WFQFN Exposed Pad","Switch Circuit":"DPDT","lifecycle_stage":"eol_hot","Charge Injection":"40pC","Number of Circuits":"4","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"36-TQFN (6x6)","On-State Resistance (Max)":"850mOhm","Switch Time (Ton, Toff) (Max)":"140ns, 50ns","Voltage - Supply, Single (V+)":"1.8V ~ 5.5V","Current - Leakage (IS(off)) (Max)":"4nA","Multiplexer/Demultiplexer Circuit":"2:2","Channel Capacitance (CS(off), CD(off))":"180pF, 300pF","Channel-to-Channel Matching (ΔRon)":"100mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.51","stockQuantity":22,"priceTiers":[{"qty":1,"price":"$11.51000","currency":"USD"},{"qty":10,"price":"$10.40100","currency":"USD"},{"qty":25,"price":"$9.91760","currency":"USD"},{"qty":100,"price":"$8.61150","currency":"USD"},{"qty":250,"price":"$8.22444","currency":"USD"},{"qty":500,"price":"$7.49874","currency":"USD"},{"qty":1000,"price":"$6.53116","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5b6bf9d626ed7e1f54858fbae3e65ff3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the crosstalk performance of MAX4758ETX+?","answer":"Crosstalk is specified at -90 dB at 100 kHz. This means less than 0.003% of the signal on one channel couples into an adjacent channel at audio frequencies — suitable for multi-channel audio switching and precision analog multiplexing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4758ETX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4758ETX 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}}