{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4521CUE+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4521CUE","canonicalUrl":"https://icboms.com/analog-devices/MAX4521CUE","factsUrl":"https://icboms.com/api/mcp/products/MAX4521CUE%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX4521CUE+, quad SPST-NC analog switch, 100 Ohm on-resistance, 1 Ohm channel matching, 80ns/30ns switching, -90dB crosstalk at 100kHz, 16-TSSOP package, 0°C to 70°C, ROHS3 compliant.","salesMarkdown":"## Quad SPST-NC analog switch for precision signal routing The Maxim Integrated MAX4521CUE+ is a quad single-pole single-throw normally-closed (SPST-NC) analog switch in a 16-TSSOP package. Each of the four switches presents a maximum on-resistance of 100 Ohm with channel-to-channel matching held to 1 Ohm, making it suitable for precision analog multiplexing, audio routing, and data-acquisition front-ends where consistent insertion loss across channels matters. The switch operates from a single supply of 2V to 12V or dual supplies of ±2V to ±6V, and its switching times — 80 ns turn-on, 30 ns turn-off — support moderate-speed signal gating. Crosstalk is rated at -90 dB at 100 kHz, which keeps channel bleed low in multi-channel systems. The commercial temperature range (0°C to 70°C) targets indoor equipment, test instrumentation, and bench-top gear. ## Package and handling Housed in a 16-TSSOP (4.40 mm width) surface-mount package, the MAX4521CUE+ ships in Tube form. The package is MSL 1 — no moisture bake required before reflow, which simplifies kitting and rework. Store the tubes in a dry, ESD-safe bin; the part is ROHS3 compliant, so no lead-free process conflict. ## Lifecycle and sourcing Sourced through independent distribution and quoted to order against an RFQ.","metaTitle":"MAX4521CUE+ SPST-NC Analog Switch, 100 Ohm, 16-TSSOP","metaDescription":"MAX4521CUE+ quad SPST-NC analog switch, 100 Ohm on-resistance, 1 Ohm channel matching, -90dB crosstalk at 100kHz. 16-TSSOP, 0-70°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Crosstalk":"-90dB @ 100kHz","Mounting Type":"Surface Mount","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","Switch Circuit":"SPST - NC","lifecycle_stage":"eol_hot","Charge Injection":"1pC","Number of Circuits":"4","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"16-TSSOP","On-State Resistance (Max)":"100Ohm","Voltage - Supply, Dual (V±)":"±2V ~ 6V","Switch Time (Ton, Toff) (Max)":"80ns, 30ns","Voltage - Supply, Single (V+)":"2V ~ 12V","Current - Leakage (IS(off)) (Max)":"1nA","Multiplexer/Demultiplexer Circuit":"1:1","Channel Capacitance (CS(off), CD(off))":"2pF, 2pF","Channel-to-Channel Matching (ΔRon)":"1Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.05","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.05000","currency":"USD"},{"qty":10,"price":"$2.74000","currency":"USD"},{"qty":25,"price":"$2.59080","currency":"USD"},{"qty":100,"price":"$2.24520","currency":"USD"},{"qty":250,"price":"$2.13008","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX4521-MAX4523.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the on-resistance and why does it matter?","answer":"The maximum on-resistance is 100 Ohm per switch, with channel-to-channel matching of 1 Ohm. This tight matching ensures consistent signal attenuation across all four channels, critical for balanced audio or multi-channel data acquisition."},{"question":"Can I use MAX4521CUE+ with 3.3V logic?","answer":"Yes. The single-supply range of 2V to 12V covers 3.3V logic levels. The switch operates with a 3.3V supply, and the logic inputs are compatible with 3.3V thresholds. Verify the logic threshold voltages in the datasheet for your specific drive level."},{"question":"What is the crosstalk specification?","answer":"Crosstalk is rated at -90 dB at 100 kHz, meaning signal bleed between channels is very low. This suits multi-channel audio or low-level analog switching where isolation matters."},{"question":"What is the closest pin-compatible alternative?","answer":"Maxim's MAX4521 family includes the MAX4522CUE+ (SPST-NO) and MAX4523CUE+ (SPDT) in the same 16-TSSOP footprint. Verify the switch configuration before substituting — the pinout is identical, but the logic function differs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4521CUE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4521CUE 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}}