{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX391CSE+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX391CSE","canonicalUrl":"https://icboms.com/analog-devices/MAX391CSE","factsUrl":"https://icboms.com/api/mcp/products/MAX391CSE%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim MAX391CSE+, SPST-NC 4-circuit analog switch, 35 Ohm on-resistance, 130ns/75ns switching, -85dB crosstalk @ 1MHz, 16-SOIC surface mount, 0°C to 70°C, Tube.","salesMarkdown":"## What the MAX391CSE+ is and where it fits The Maxim MAX391CSE+ is a quad SPST-NC (normally-closed) analog switch in a 16-SOIC package. Each of the four switches passes signals rail-to-rail on a single 3V to 15V supply or a dual ±3V to ±8V supply. The 35 Ohm max on-resistance with 300 mOhm channel-to-channel matching keeps gain errors predictable in precision analog paths. Switching completes in 130 ns turn-on and 75 ns turn-off, fast enough for audio routing, multiplexed data acquisition, or sample-and-hold front ends. Off-leakage stays at 100 pA max, and charge injection is 2 pC typical — both specs matter when the switch feeds a high-impedance ADC input or a long-hold integrator. Not rated for the engine bay or a rooftop enclosure without active cooling. ## Crosstalk and isolation — what -85 dB at 1 MHz means Crosstalk is specified at -85 dB at 1 MHz. ## Package and supply — board-fit constraints The 16-SOIC (0.154\" body width, 3.90 mm) is a standard footprint shared by hundreds of analog switches and op-amps. The MAX391CSE+ ships in a Tube — if your pick-and-place line expects Tape & Reel, confirm the packing option at quote time. Supply flexibility is a strong point: a single 3V to 15V rail or split ±3V to ±8V rails. On a 5V-only board, the switch works with no extra regulator. On a ±5V analog supply, it matches the common industrial bipolar rail. ## Lifecycle and sourcing posture The MAX391CSE+ carries an Active lifecycle status and is ROHS3 compliant. No end-of-life notice, no last-time-buy schedule.","metaTitle":"Maxim MAX391CSE+ SPST-NC Switch, 35 Ohm, 16-SOIC","metaDescription":"Maxim MAX391CSE+ 4-circuit SPST-NC analog switch in 16-SOIC. 35 Ohm on-resistance, 130ns/75ns switching, -85dB crosstalk. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Crosstalk":"-85dB @ 1MHz","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Switch Circuit":"SPST - NC","lifecycle_stage":"eol_hot","Charge Injection":"2pC","Number of Circuits":"4","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"16-SOIC","On-State Resistance (Max)":"35Ohm","Voltage - Supply, Dual (V±)":"±3V ~ 8V","Switch Time (Ton, Toff) (Max)":"130ns, 75ns","Voltage - Supply, Single (V+)":"3V ~ 15V","Current - Leakage (IS(off)) (Max)":"100pA","Multiplexer/Demultiplexer Circuit":"1:1","Channel Capacitance (CS(off), CD(off))":"9pF, 9pF","Channel-to-Channel Matching (ΔRon)":"300mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.16","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.16000","currency":"USD"},{"qty":10,"price":"$5.52900","currency":"USD"},{"qty":25,"price":"$5.22680","currency":"USD"},{"qty":100,"price":"$4.52980","currency":"USD"},{"qty":250,"price":"$4.29756","currency":"USD"},{"qty":500,"price":"$3.85618","currency":"USD"},{"qty":1000,"price":"$3.25220","currency":"USD"},{"qty":2500,"price":"$3.08959","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX391-MAX393.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the MAX391CSE+ used for?","answer":"The MAX391CSE+ is a quad SPST-NC analog switch used for signal routing, multiplexing, and sample-and-hold in precision analog systems. Typical applications include audio switching, data acquisition front ends, and telecom line cards."},{"question":"Is MAX391CSE+ compatible with 3.3V logic?","answer":"Yes. The single-supply range starts at 3V, and the switch operates with a 3.3V logic supply. Logic thresholds are TTL/CMOS compatible over the full supply range."},{"question":"What is MAX391CSE+'s listed crosstalk?","answer":"Crosstalk is specified at -85 dB at 1 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX391CSE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX391CSE 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}}