{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DG409DJ+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DG409DJ","canonicalUrl":"https://icboms.com/analog-devices/DG409DJ","factsUrl":"https://icboms.com/api/mcp/products/DG409DJ%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DG409DJ+ dual SP4T analog switch, 100 Ohm on-resistance, 16-DIP through-hole package, ±5V to ±20V dual supply, -92dB crosstalk at 100kHz.","salesMarkdown":"The DG409DJ+: The 16-PDIP footprint is a legacy workhorse — no fine-pitch alignment needed, and the 100-mil row spacing keeps layout straightforward on two-layer boards. The through-hole body handles rework cycles well, but the 16-DIP's thermal resistance is higher than a surface-mount equivalent — keep the ambient airflow in mind if the switch is near a hot regulator or power stage. ## Switch topology and key parametrics The DG409DJ+ integrates two independent SP4T (single-pole, four-throw) switches, each configurable as a 4:1 multiplexer or 1:4 demultiplexer. With a maximum on-resistance of 100 ohms and channel-to-channel matching of 1.5 ohms, the signal attenuation and skew between channels stay tight — useful for routing analog signals like audio or low-frequency sensor outputs where gain matching matters. Switching time is 150 ns for both turn-on and turn-off, which sets the channel-switching rate ceiling at roughly 3.3 MHz for a 50% duty cycle. The -92 dB crosstalk at 100 kHz means that a signal on one channel couples less than 0.0025% into an off channel — a clean enough floor for 16-bit data acquisition systems. ## Supply rails and signal-handling limits The dual-supply mode lets the switch pass bipolar signals without level-shifting — the analog signal range tracks the supply rails. Charge injection is 2 pC typical, so glitch energy during channel switching is low enough that a downstream sample-and-hold sees minimal offset shift. Off-channel leakage is 500 pA maximum, and off-capacitance is 14 pF on the drain side. For a 10 kΩ source impedance, the leakage-induced offset is under 5 µV — negligible in most precision circuits. The 3 pF source capacitance keeps the RC time constant short, preserving bandwidth through the mux.","metaTitle":"DG409DJ+ Analog Devices IC Switch, SP4T x 2, 100 Ohm, 16-DIP","metaDescription":"DG409DJ+ dual 4:1 multiplexer/demultiplexer, 100 Ohm on-resistance, ±5V to ±20V dual supply, -92dB crosstalk at 100kHz. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","Crosstalk":"-92dB @ 100kHz","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","Switch Circuit":"SP4T","lifecycle_stage":"eol_hot","Charge Injection":"2pC","Number of Circuits":"2","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"16-PDIP","On-State Resistance (Max)":"100Ohm","Voltage - Supply, Dual (V±)":"±5V ~ 20V","Switch Time (Ton, Toff) (Max)":"150ns, 150ns","Voltage - Supply, Single (V+)":"5V ~ 30V","Current - Leakage (IS(off)) (Max)":"500pA","Multiplexer/Demultiplexer Circuit":"4:1","Channel Capacitance (CS(off), CD(off))":"3pF, 14pF","Channel-to-Channel Matching (ΔRon)":"1.5Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.34","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$14.34000","currency":"USD"},{"qty":10,"price":"$13.17700","currency":"USD"},{"qty":25,"price":"$12.63120","currency":"USD"},{"qty":100,"price":"$11.12900","currency":"USD"},{"qty":250,"price":"$10.58280","currency":"USD"},{"qty":500,"price":"$9.90002","currency":"USD"},{"qty":1000,"price":"$9.08071","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the crosstalk specification for DG409DJ+?","answer":"Crosstalk is rated at -92 dB at 100 kHz, meaning less than 0.0025% of a signal on one channel couples into an off channel at that frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DG409DJ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DG409DJ 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}}