{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX320CUA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX320CUA","canonicalUrl":"https://icboms.com/analog-devices/MAX320CUA","factsUrl":"https://icboms.com/api/mcp/products/MAX320CUA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX320CUA+, dual SPST-NO analog switch, 35 Ohm on-resistance, -85 dB crosstalk @ 1 MHz, 2 pC charge injection, 150 ns/100 ns switching, 0°C to 70°C, 8-uMAX/uSOP package.","salesMarkdown":"## Dual SPST-NO switch with -85 dB crosstalk — what it means for your signal path The Maxim Integrated MAX320CUA+ is a dual SPST-NO analog switch in an 8-uMAX/uSOP package. It routes two independent signal channels with a 1:1 multiplexer/demultiplexer configuration, each channel presenting a maximum on-resistance of 35 ohms. The -85 dB crosstalk at 1 MHz makes it a clean choice for audio routing, precision instrumentation, and low-frequency analog multiplexing where channel isolation matters. Charge injection is rated at 2 pC, low enough for sample-and-hold or deglitching a DAC output without adding noticeable offset. ## 35 ohm on-resistance and 300 mOhm matching — BOM fit for balanced paths On-resistance flatness across the analog range is not specified in the brief, but the 300 mOhm channel-to-channel matching (Delta Ron) gives confidence that the two switch paths will track within a narrow band — useful for stereo audio or dual-channel sensor conditioning where gain matching is required. The 100 pA maximum off-leakage and 9 pF off-capacitance keep signal integrity intact at moderate impedances. ## Supply range and temperature grade — design-in boundaries The MAX320CUA+ operates from a dual supply of ±2.7 V to ±8 V. The 0°C to 70°C commercial temperature grade limits this part to indoor, office, or lab environments — not for automotive or industrial outdoor use. Switching times are 150 ns turn-on, 100 ns turn-off, fast enough for audio muting and low-speed multiplexing but not for video or high-speed data. ## Active production — no immediate second-source pressure The MAX320CUA+ carries an Active lifecycle status with ROHS3 compliance.","metaTitle":"MAX320CUA+ Analog Switch SPST-NO 2-Ch, 35 Ohm","metaDescription":"MAX320CUA+ dual SPST-NO analog switch from Maxim Integrated. 35 Ohm on-resistance, -85 dB crosstalk @ 1 MHz, 2 pC charge injection. 0°C to 70°C, 8-uMAX/uSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Crosstalk":"-85dB @ 1MHz","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","Switch Circuit":"SPST - NO","lifecycle_stage":"eol_hot","Charge Injection":"2pC","Number of Circuits":"2","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"8-uMAX/uSOP","On-State Resistance (Max)":"35Ohm","Voltage - Supply, Dual (V±)":"±2.7V ~ 8V","Switch Time (Ton, Toff) (Max)":"150ns, 100ns","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":"$4.47","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.47000","currency":"USD"},{"qty":10,"price":"$4.01400","currency":"USD"},{"qty":25,"price":"$3.79520","currency":"USD"},{"qty":100,"price":"$3.28910","currency":"USD"},{"qty":250,"price":"$3.12040","currency":"USD"},{"qty":500,"price":"$2.79992","currency":"USD"},{"qty":1000,"price":"$2.36138","currency":"USD"},{"qty":2500,"price":"$2.24331","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a0fddb99dba39853305f55f9db064928.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the MAX320CUA+ a direct replacement for the MAX320CSA?","answer":"The MAX320CSA is the same dual SPST-NO switch in an SOIC package, while the MAX320CUA+ comes in the smaller 8-uMAX/uSOP. Electrically they are identical, but the package footprint differs — verify your PCB land pattern before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX320CUA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX320CUA 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}}