{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DG445DY+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DG445DY","canonicalUrl":"https://icboms.com/analog-devices/DG445DY","factsUrl":"https://icboms.com/api/mcp/products/DG445DY%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DG445DY+, quad SPST-NO analog switch, 85 Ohm max on-resistance, 10V to 30V single supply / ±4.5V to ±20V dual supply, 250ns/170ns switching, -100dB crosstalk @ 1MHz, 16-SOIC, -40°C to 85°C.","salesMarkdown":"## What the DG445DY+ is and where it fits The Maxim Integrated DG445DY+ is a quad SPST-NO analog switch in a 16-SOIC surface-mount package. Each of the four independent switches is normally open, controlled by a single logic input. The part is built for routing analog or digital signals up to the supply rails, with a single-supply range of 10V to 30V or a dual-supply range of ±4.5V to ±20V. Typical applications include audio signal routing, data acquisition systems, test equipment, and industrial analog multiplexing where low charge injection (5pC) and channel-to-channel matching (4 ohm max) matter for signal fidelity. ## Key ratings and what they mean for the BOM The 85 ohm max on-resistance is the series resistance each switch adds to the signal path. For a precision analog front-end, that resistance and its matching (4 ohm max between channels) will affect gain accuracy and offset — plan to calibrate or buffer if the load impedance is below 10 kohm. Switching times of 250ns on and 170ns off set the throughput limit for multiplexed signals. At 1 MHz the crosstalk sits at -100 dB, which is a strong isolation figure — adjacent channels won't bleed into each other in audio or low-frequency precision applications. The charge injection of 5 pC means a small glitch couples onto the signal when the switch opens or closes; acceptable for most line-level audio but worth noting for sample-and-hold or high-impedance nodes. Operating temperature from -40°C to 85°C covers industrial enclosures, outdoor telecom cabinets, and factory-floor control panels. The 16-SOIC package is a standard footprint for mixed-signal boards; verify clearance for the 3.90 mm body width if retrofitting a legacy layout. ## Lifecycle and sourcing reality The DG445DY+ carries an active product status and is ROHS3 compliant.","metaTitle":"DG445DY+ SPST Analog Switch, 85 Ohm, 16-SOIC","metaDescription":"DG445DY+ quad SPST-NO analog switch, 85 ohm max on-resistance, -100dB crosstalk @ 1MHz, 10V to 30V single supply.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","Crosstalk":"-100dB @ 1MHz","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Switch Circuit":"SPST - NO","lifecycle_stage":"eol_hot","Charge Injection":"5pC","Number of Circuits":"4","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"16-SOIC","On-State Resistance (Max)":"85Ohm","Voltage - Supply, Dual (V±)":"±4.5V ~ 20V","Switch Time (Ton, Toff) (Max)":"250ns, 170ns","Voltage - Supply, Single (V+)":"10V ~ 30V","Current - Leakage (IS(off)) (Max)":"500pA","Multiplexer/Demultiplexer Circuit":"1:1","Channel Capacitance (CS(off), CD(off))":"4pF, 4pF","Channel-to-Channel Matching (ΔRon)":"4Ohm (Max)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.66","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.66000","currency":"USD"},{"qty":10,"price":"$6.01500","currency":"USD"},{"qty":25,"price":"$5.73520","currency":"USD"},{"qty":100,"price":"$4.97990","currency":"USD"},{"qty":250,"price":"$4.75608","currency":"USD"},{"qty":500,"price":"$4.33644","currency":"USD"},{"qty":1000,"price":"$3.77690","currency":"USD"},{"qty":2500,"price":"$3.63701","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7b80c6f5f2618e175c38a3812963711d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the on-resistance of DG445DY+?","answer":"The maximum on-resistance is 85 ohms per switch. Channel-to-channel matching is 4 ohms max."},{"question":"Can DG445DY+ be used with dual supplies?","answer":"Yes, the dual-supply range is ±4.5V to ±20V. The part also accepts a single supply from 10V to 30V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DG445DY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DG445DY 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}}