{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DG419DY+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DG419DYT","canonicalUrl":"https://icboms.com/analog-devices/DG419DYT","factsUrl":"https://icboms.com/api/mcp/products/DG419DY%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DG419DY+T, SPDT analog switch, 1 circuit, 35 Ohm max on-resistance, 175ns/145ns switch time, -85dB crosstalk @ 1MHz, single 10V-30V or dual ±4.5V-±20V supply, -40°C to 85°C, 8-SOIC package, Tape & Reel.","salesMarkdown":"## SPDT analog switch for precision signal routing Key specs include 35 Ohm max on-resistance, 3 Ohm max channel-to-channel matching, and 250pA max off-leakage current—parameters that keep signal attenuation and DC error low in precision analog paths. Switching is fast: 175ns max turn-on, 145ns max turn-off, suitable for scanning multiple sensor channels in a multiplexed acquisition front-end. The industrial temperature range of -40°C to 85°C qualifies it for factory-floor PLC I/O modules, outdoor telecom line cards, and engine-bay instrumentation where ambient temperature swings are wide. ## Crosstalk and charge injection—what they mean for signal integrity Charge injection is 3pC. When the switch turns off, this packet of charge dumps onto the load capacitor, creating a voltage glitch equal to 3pC divided by the load capacitance. Into a 10pF sampling capacitor in an ADC driver, that is a 300mV step—enough to cause a conversion error if settling time is insufficient. Plan for a settling window after the switch command or use a track-and-hold ahead of the converter. ## Lifecycle and sourcing posture DG419DY+T is listed as Active in production. The part is ROHS3 compliant. For BOM lines that require a dual-source option, verify the specific alternate against your supply rails and temperature requirements.","metaTitle":"DG419DY+T Analog Switch SPDT, 35Ohm, 8-SOIC, Active","metaDescription":"DG419DY+T SPDT analog switch from Analog Devices. 35Ohm max on-resistance, -85dB crosstalk at 1MHz, 3pC charge injection.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Crosstalk":"-85dB @ 1MHz","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Switch Circuit":"SPDT","lifecycle_stage":"eol_hot","Charge Injection":"3pC","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC","On-State Resistance (Max)":"35Ohm","Voltage - Supply, Dual (V±)":"±4.5V ~ 20V","Switch Time (Ton, Toff) (Max)":"175ns, 145ns","Voltage - Supply, Single (V+)":"10V ~ 30V","Current - Leakage (IS(off)) (Max)":"250pA","Multiplexer/Demultiplexer Circuit":"2:1","Channel Capacitance (CS(off), CD(off))":"8pF, 8pF","Channel-to-Channel Matching (ΔRon)":"3Ohm (Max)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.45","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.45000","currency":"USD"},{"qty":10,"price":"$5.79300","currency":"USD"},{"qty":25,"price":"$5.47680","currency":"USD"},{"qty":100,"price":"$4.74650","currency":"USD"},{"qty":250,"price":"$4.50308","currency":"USD"},{"qty":500,"price":"$4.04060","currency":"USD"},{"qty":1000,"price":"$3.40774","currency":"USD"},{"qty":2500,"price":"$3.23735","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9e5bb6763851b16f3b87ba36c82dc84d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the on-resistance of DG419DY+T?","answer":"Maximum on-resistance is 35 Ohms. Channel-to-channel matching is 3 Ohms max, so the resistance difference between the two switch positions is small—important for maintaining gain symmetry in differential signal paths."},{"question":"What is the crosstalk of DG419DY+T?","answer":"Crosstalk is -85dB at 1MHz. This is the isolation between the two switch channels when the switch is in a different state—it tells you how much signal bleeds from the active channel into the inactive one."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DG419DYT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DG419DYT 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}}