{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DG444DJ+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DG444DJ","canonicalUrl":"https://icboms.com/analog-devices/DG444DJ","factsUrl":"https://icboms.com/api/mcp/products/DG444DJ%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DG444DJ+, quad SPST-NC analog switch, 85 Ohm on-resistance, 16-DIP (0.300\", 7.62mm) through-hole package, -100dB crosstalk @ 1MHz.","salesMarkdown":"## Quad SPST-NC switch with 85Ω on-resistance The DG444DJ+ is a quad SPST-NC (normally-closed) analog switch from Analog Devices, packaged in a 16-pin DIP (0.300\", 7.62mm) through-hole package. Each of the four switches presents a maximum on-resistance of 85Ω, with channel-to-channel matching held to 4Ω max — tight enough that gain errors in a multiplexed signal chain stay within a few millivolts across channels. The normally-closed topology means the switch conducts when the control voltage is low — a useful fail-safe in applications where the signal path should remain connected if the logic supply drops or the controller resets. ## Supply flexibility and signal integrity The part runs from either a single supply (10 V to 30 V) or dual supplies (±4.5 V to ±20 V), making it adaptable to both single-rail systems and bipolar analog front-ends. The wide supply range covers common industrial rails like ±12 V, ±15 V, and 24 V single-ended without needing a separate regulator. Switching speed is 250 ns on, 140 ns off (max) — fast enough for audio muting, sample-and-hold front-ends, or relay-replacement in low-speed data acquisition. Crosstalk between channels is -100 dB at 1 MHz, so a 10 Vpp signal on one channel couples less than 100 µV into an adjacent channel — adequate for 16-bit systems at moderate frequencies. Charge injection is 5 pC typical, which translates to a voltage glitch of about 1.25 mV into a 4 pF load capacitance — low enough that downstream sample-and-hold circuits or precision integrators see minimal pedestal error. Off-state leakage is 500 pA max, and off-capacitance is 4 pF per channel — both figures keep the signal path high-impedance when the switch is open, preserving accuracy in high-source-impedance applications like photodiode amplifiers or pH probe interfaces. ## Through-hole DIP for prototyping and legacy designs Housed in a 16-pin PDIP (0.300\" body width), the DG444DJ+ is a through-hole part — the same footprint used by the original DG444 series. It is a natural fit for breadboarding, socketed test fixtures, or legacy board spins that already carry the DIP footprint.","metaTitle":"Analog Devices DG444DJ+ SPST-NC Switch, 85Ω, 16-DIP","metaDescription":"DG444DJ+ quad SPST-NC analog switch, 85Ω on-resistance, 250ns switching, -100dB crosstalk. Active production, ROHS3 compliant. Quoted 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":"-100dB @ 1MHz","Mounting Type":"Through Hole","Package / Case":"16-DIP (0.300\\\", 7.62mm)","Switch Circuit":"SPST - NC","lifecycle_stage":"eol_hot","Charge Injection":"5pC","Number of Circuits":"4","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"16-PDIP","On-State Resistance (Max)":"85Ohm","Voltage - Supply, Dual (V±)":"±4.5V ~ 20V","Switch Time (Ton, Toff) (Max)":"250ns, 140ns","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":"$8.61","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.61000","currency":"USD"},{"qty":10,"price":"$7.77400","currency":"USD"},{"qty":25,"price":"$7.41240","currency":"USD"},{"qty":100,"price":"$6.43610","currency":"USD"},{"qty":250,"price":"$6.14688","currency":"USD"},{"qty":500,"price":"$5.60448","currency":"USD"},{"qty":1000,"price":"$4.88133","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7b80c6f5f2618e175c38a3812963711d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the crosstalk specification of the DG444DJ+?","answer":"The DG444DJ+ has a crosstalk of -100 dB at 1 MHz between channels. This means a 10 Vpp signal on one channel couples less than 100 µV into an adjacent channel, suitable for 16-bit signal chains at moderate frequencies."},{"question":"What package does the DG444DJ+ come in?","answer":"The DG444DJ+ is supplied in a 16-pin DIP (0.300\", 7.62mm) through-hole package, specifically a 16-PDIP. It is delivered in tube packaging."},{"question":"What is the on-resistance and channel matching of the DG444DJ+?","answer":"Maximum on-resistance is 85Ω per channel, with channel-to-channel matching guaranteed to 4Ω max. This tight matching keeps gain errors across channels in a multiplexed system within a few millivolts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DG444DJ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DG444DJ 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}}