{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4737EUD+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4737EUD","canonicalUrl":"https://icboms.com/analog-devices/MAX4737EUD","factsUrl":"https://icboms.com/api/mcp/products/MAX4737EUD%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX4737EUD+, SPST-NO analog switch, 4-circuit, 4.5 Ohm max on-resistance, 300 MHz -3dB bandwidth, 1.8V to 5.5V single supply, 14-TSSOP package, -40°C to +85°C.","salesMarkdown":"## Four SPST-NO switches in a 14-TSSOP — what the ratings mean for signal routing The MAX4737EUD+ from Maxim Integrated is a quad SPST-NO analog switch in a 14-TSSOP package, designed for routing analog or digital signals where low on-resistance and wide bandwidth matter. Each of the four switches is normally-open, with a 1:1 multiplexer/demultiplexer configuration, meaning each switch connects a single input to a single output when the control pin is asserted. The 4.5 ohm maximum on-resistance keeps signal attenuation low in the passband, and the 300 MHz -3dB bandwidth means this part can handle video, RF, or high-speed data paths without rolling off the signal. The 1.8V to 5.5V single-supply range lets it run from common logic rails (1.8V, 2.5V, 3.3V, 5V) without a separate negative supply, simplifying the power tree. ## On-resistance flatness and channel matching — the signal-path budget The 4.5 ohm max on-resistance is the headline number, but the channel-to-channel matching of 100 milliohm matters just as much in precision analog multiplexing. When switching between multiple sensor channels or gain stages, a 100 mOhm delta between channels keeps the gain error consistent across paths. The 5 pC charge injection spec tells you how much glitch gets dumped onto the signal when the switch turns on or off — important for sample-and-hold or DAC output multiplexing where a charge kick corrupts the settled value. Off-leakage is rated at 500 pA maximum, so high-impedance inputs won't see a significant current error. ## Crosstalk and bandwidth — keeping channels isolated at speed With -110 dB crosstalk at 1 MHz, the MAX4737EUD+ keeps signals from bleeding between channels in multi-channel audio, data acquisition, or RF switching applications. The 300 MHz bandwidth supports composite video, 100BASE-TX Ethernet analog front-ends, or IF signal routing. The 9 pF channel capacitance (both source and drain off-state) contributes to the bandwidth roll-off and also affects the settling time when driving a capacitive load — factor it into your RC time constant budget for the signal path. ## Switching speed and timing margin Turn-on time is 80 ns maximum, turn-off is 40 ns maximum. That asymmetry means the switch opens faster than it closes, which matters in break-before-make applications where you need to guarantee no momentary short between two signal sources. The 80 ns ton also sets the minimum pulse width you can reliably gate — at 12.5 MHz switching rate you start losing pulse integrity. ## Package and footprint — 14-TSSOP layout notes The 14-TSSOP package (4.40 mm body width, 0.65 mm pitch) is a common footprint shared with many analog switches and op-amps. The surface-mount package is suited for automated assembly. The operating temperature range of -40°C to +85°C covers industrial control, telecom infrastructure, and outdoor equipment without needing a mil-spec part. ## Sourcing and lifecycle — active production, no LTB risk It is ROHS3 compliant.","metaTitle":"MAX4737EUD+ Analog Switch, 4.5 Ohm, 300 MHz, 14-TSSOP","metaDescription":"MAX4737EUD+ SPST-NO analog switch, 4.5 ohm max on-resistance, 300 MHz bandwidth, 1.8V-5.5V supply, 14-TSSOP. Active production, 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":"-110dB @ 1MHz","Mounting Type":"Surface Mount","-3db Bandwidth":"300MHz","Package / Case":"14-TSSOP (0.173\\\", 4.40mm 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":"14-TSSOP","On-State Resistance (Max)":"4.5Ohm","Switch Time (Ton, Toff) (Max)":"80ns, 40ns","Voltage - Supply, Single (V+)":"1.8V ~ 5.5V","Current - Leakage (IS(off)) (Max)":"500pA","Multiplexer/Demultiplexer Circuit":"1:1","Channel Capacitance (CS(off), CD(off))":"9pF","Channel-to-Channel Matching (ΔRon)":"100mOhm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.14","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.14000","currency":"USD"},{"qty":10,"price":"$4.61500","currency":"USD"},{"qty":25,"price":"$4.36320","currency":"USD"},{"qty":100,"price":"$3.78140","currency":"USD"},{"qty":250,"price":"$3.58752","currency":"USD"},{"qty":500,"price":"$3.21908","currency":"USD"},{"qty":1000,"price":"$2.71488","currency":"USD"},{"qty":2500,"price":"$2.57914","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX4737-MAX4739.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the on-resistance of MAX4737EUD+?","answer":"The maximum on-resistance is 4.5 ohms, with channel-to-channel matching of 100 milliohms."},{"question":"Is MAX4737EUD+ a direct replacement for MAX4736EUD+?","answer":"The MAX4736EUD+ is the normally-closed (SPST-NC) variant of the same quad switch family. The MAX4737EUD+ is normally-open (SPST-NO), so they are not direct replacements — the logic polarity is inverted. Check your control signal polarity before substituting."},{"question":"What is the bandwidth (-3dB) of MAX4737EUD+?","answer":"The -3dB bandwidth is 300 MHz, suitable for video, RF, and high-speed data routing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4737EUD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4737EUD 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}}