{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADG1439BRUZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADG1439BRUZ","canonicalUrl":"https://icboms.com/analog-devices/ADG1439BRUZ","factsUrl":"https://icboms.com/api/mcp/products/ADG1439BRUZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADG1439BRUZ, dual SP4T analog switch, 11.5 Ohm max on-resistance, 130 MHz -3dB bandwidth, -70dB crosstalk at 1 MHz, 4 pC charge injection, 20-TSSOP, -40 to 125 °C.","salesMarkdown":"## Dual SP4T analog switch for precision signal routing The Analog Devices ADG1439BRUZ is a dual 4:1 multiplexer / demultiplexer (two SP4T switches) in a 20-TSSOP package, designed for routing analog or digital signals with minimal distortion. Each switch presents a maximum on-resistance of 11.5 ohm, with channel-to-channel matching held to 550 mOhm, keeping gain errors consistent across channels in precision instrumentation and data-acquisition front ends. The -3 dB bandwidth extends to 130 MHz, and crosstalk between channels is rated at -70 dB at 1 MHz, making the part suitable for multiplexing video, IF signals, or high-speed ADC inputs where isolation matters. Charge injection is 4 pC, low enough to avoid significant glitch energy in sample-and-hold or DAC deglitch circuits. Supply flexibility covers both single-supply operation from 5 V to 16.5 V and dual supplies from ±4.5 V to ±16.5 V, accommodating common analog rails like ±5 V, ±12 V, or ±15 V. The 11.5 ohm max on-resistance sets the insertion loss for a given load; in a 50 ohm system the switch adds about 0.2 dB of attenuation, negligible for most analog paths. The 550 mOhm channel-to-channel matching ensures that when the mux scans multiple sensor inputs, the gain shift from one channel to the next stays under 0.05% for a 1 kohm load. Charge injection of 4 pC means that when the switch turns off, the charge dumped onto the load capacitor produces a voltage step of about 4 mV into a 1 nF hold capacitor. For a 16-bit ADC with a 5 V reference (76 µV per LSB), that step is roughly 53 LSBs — acceptable if the ADC samples after the settling time, but worth accounting for in the acquisition timing budget. ## Supply rails and temperature grade The dual-supply range of ±4.5 V to ±16.5 V lets the switch handle bipolar signals up to ±15 V without clipping, common in audio, ATE, and industrial analog I/O modules. Single-supply operation from 5 V to 16.5 V covers unipolar systems like 0-10 V PLC inputs or 12 V battery-monitoring circuits. The 20-TSSOP package (4.4 mm wide) is a standard footprint for multiplexers in this pin count, and the surface-mount assembly is straightforward with typical reflow profiles.","metaTitle":"ADG1439BRUZ SP4T Analog Switch, 11.5 Ohm, 130 MHz","metaDescription":"ADI ADG1439BRUZ dual 4:1 multiplexer, 11.5 ohm on-resistance, -70dB crosstalk at 1 MHz, 130 MHz bandwidth, -40 to 125 C, 20-TSSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tube","Crosstalk":"-70dB @ 1MHz","Mounting Type":"Surface Mount","-3db Bandwidth":"130MHz","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","Switch Circuit":"SP4T","lifecycle_stage":"eol_hot","Charge Injection":"4pC","Number of Circuits":"2","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"20-TSSOP","On-State Resistance (Max)":"11.5Ohm","Voltage - Supply, Dual (V±)":"±4.5V ~ 16.5V","Voltage - Supply, Single (V+)":"5V ~ 16.5V","Current - Leakage (IS(off)) (Max)":"150pA","Multiplexer/Demultiplexer Circuit":"4:1","Channel-to-Channel Matching (ΔRon)":"550mOhm","Channel Capacitance (CS(off), CD(off))":"9pF, 28pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.64","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$9.64000","currency":"USD"},{"qty":10,"price":"$8.70800","currency":"USD"},{"qty":75,"price":"$8.30267","currency":"USD"},{"qty":150,"price":"$7.20920","currency":"USD"},{"qty":300,"price":"$6.88517","currency":"USD"},{"qty":525,"price":"$6.27766","currency":"USD"},{"qty":1050,"price":"$5.46764","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/578dc3a621ef1bab20d7718c8adcfa15.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for ADG1439BRUZ?","answer":"The ADG1409YRUZ-REEL7 is a close peer: it is also a dual SP4T switch in a 20-pin TSSOP, with a lower on-resistance of 4.7 ohm and faster switching (120 ns typical), but its charge injection is -50 pC versus the ADG1439's 4 pC. The ADG1438BCPZ-REEL7 is a single 8:1 mux in a different package (LFCSP) and is not a pin-compatible second source. For a direct drop-in replacement with the same pinout and similar charge injection, the ADG1439BRUZ itself is the primary choice."},{"question":"What is the on-resistance of ADG1439BRUZ?","answer":"The maximum on-resistance is 11.5 ohm, with channel-to-channel matching of 550 mOhm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADG1439BRUZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADG1439BRUZ 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}}