{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX322CUA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX322CUA","canonicalUrl":"https://icboms.com/analog-devices/MAX322CUA","factsUrl":"https://icboms.com/api/mcp/products/MAX322CUA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX322CUA+ dual SPST NO/NC analog switch, 35 Ohm on-resistance, 2pC charge injection, 8-uMAX/uSOP package, tube.","salesMarkdown":"## Dual SPST switch for precision analog signal routing The MAX322CUA+ integrates two independent SPST switches with both normally-open and normally-closed configurations per channel, giving you per-circuit polarity flexibility without external inverters. On-resistance is 35 Ohm maximum, with channel-to-channel matching held to 300 mOhm — the mismatch between the two paths stays under a third of an ohm, which matters when the switch is in a gain-setting or divider network where R-on imbalance shifts the ratio. Charge injection is rated 2 pC typical — at that level the injected charge into a 10 pF hold capacitor produces a 200 mV glitch, so for sample-and-hold or DAC output multiplexing you budget the settling time after the switch toggles. ## Switching speed and signal integrity in the audio band Maximum turn-on time is 150 ns, turn-off 100 ns — the 50 ns asymmetry means the break-before-make gap is built into the part, not something you add externally. Crosstalk is -85 dB at 1 MHz — that is the feedthrough from one channel to the other at a 1 MHz carrier. For audio-frequency multiplexing below 20 kHz the isolation is even better, but at video rates the -85 dB floor sets the limit for adjacent-channel bleed. Channel capacitance is 9 pF per side (CS(off) and CD(off) both 9 pF) — this capacitance loads the source when the switch is off and contributes to the RC roll-off when on. With a 35 Ohm R-on and 9 pF load the -3 dB bandwidth is roughly 500 MHz, well above the audio and low-frequency instrumentation band. ## Supply rails and leakage in the 0-70°C band Operates from dual supplies ±2.7 V to ±8 V — the positive and negative rails track each other; the part does not have a separate logic supply, so the control logic thresholds scale with V+. Maximum off-leakage is 100 pA at 25°C — this doubles roughly every 10°C, so at 70°C the leakage is around 1.6 nA per channel. In a high-impedance multiplexer feeding a 1 GOhm input buffer, that leakage creates a 1.6 mV offset at the hot end. Temperature range is 0°C to 70°C ambient — commercial grade only. If the board sees -20°C or 85°C ambient, the MAX322CUA+ is outside its rated operating band and the leakage and timing specs are not guaranteed. ## Package, footprint, and supply posture Supplied in tube packaging — not tape-and-reel. If your pick-and-place line is set up for reels, factor in the tube-to-reel transfer or order the tape-and-reel variant if one exists in the family. The part is ROHS3 compliant.","metaTitle":"MAX322CUA+ Analog Devices SPST Switch, 35Ohm, 8-uMAX","metaDescription":"MAX322CUA+ from Analog Devices. Dual SPST NO/NC switch, 35Ohm on-resistance, 2pC charge injection. Active production, ROHS3 compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"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/NC","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":"What is the closest pin-compatible alternative to MAX322CUA+?","answer":"No official pin-compatible successor or second-source is listed in the manufacturer records. The MAX322CUA+ is a unique order code within the Analog Devices switch portfolio; any functional equivalent would require comparing the full parametric set (supply range, on-resistance, charge injection, package) against another part number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX322CUA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX322CUA 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}}