{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4656ESA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4656ESA","canonicalUrl":"https://icboms.com/analog-devices/MAX4656ESA","factsUrl":"https://icboms.com/api/mcp/products/MAX4656ESA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX4656ESA+, SPST-NO analog switch, 10 Ohm max on-resistance, 210 MHz -3dB bandwidth, 9V to 40V single supply or ±4.5V to ±20V dual, 8-SOIC package, -40°C to +85°C operating temperature.","salesMarkdown":"## What this switch does and where it fits The MAX4656ESA+ is a single-pole, single-throw (SPST) normally-open analog switch from Analog Devices. It routes one signal channel through a 10 Ohm max on-resistance path, with a 210 MHz -3dB bandwidth that keeps high-frequency analog or digital signals clean. The switch handles a wide supply range: single 9V to 40V, or dual ±4.5V to ±20V, making it usable in industrial control, test equipment, and instrumentation where the rails are not always ±15V. The 8-SOIC package is a standard footprint, and the -40°C to +85°C temperature grade covers most factory-floor and outdoor telecom enclosures. ## 10 Ohm on-resistance – what it means for your signal With a maximum on-resistance of 10 Ohm, this switch introduces a known series resistance into the signal path. For a low-impedance source driving a high-impedance load, the voltage drop is negligible. But if you are switching a precision analog reference or a low-level sensor signal, that 10 Ohm in series with the load impedance forms a divider – budget for it in your gain or offset calibration. The resistance is flat enough across the analog range that it does not add noticeable distortion for audio or 12-bit data acquisition. ## Switching speed and charge injection Turn-on time is 200 ns max, turn-off is 100 ns max – fast enough to mux audio channels, route test signals, or switch gain-setting resistors without missing a sample period. Charge injection is 23 pC typical, which means a small voltage glitch appears on the channel when the switch opens or closes. In a high-impedance node, that glitch can take microseconds to settle; add a small capacitor to the output if your ADC conversion starts right after the switch toggles. ## Leakage and capacitance – the off-state picture Off-state leakage is 1 nA max, which is low enough that it will not load a high-impedance source or drain a sample-and-hold cap noticeably. Channel capacitance is 25 pF on both source and drain pins when off. That 25 pF combined with the 10 Ohm on-resistance gives a roughly 63 MHz RC roll-off when the switch is on – well above the 210 MHz bandwidth, so the cap does not limit the passband. In a multiplexed system, the off-capacitance of multiple switches on a shared bus adds up; keep the total below a few hundred pF to avoid crosstalk. ## Lifecycle and sourcing No official second source or pin-compatible drop-in from another manufacturer is listed, but the 8-SOIC footprint is common enough that a parametric search for SPST switches with similar supply range and on-resistance will turn up alternatives if dual-sourcing is required.","metaTitle":"MAX4656ESA+ SPST Analog Switch, 10 Ohm, 210 MHz, 8-SOIC","metaDescription":"MAX4656ESA+ SPST-NO analog switch from Analog Devices. 10 Ohm max on-resistance, 210 MHz bandwidth, 9V to 40V single supply. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Mounting Type":"Surface Mount","-3db Bandwidth":"210MHz","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Switch Circuit":"SPST - NO","lifecycle_stage":"eol_hot","Charge Injection":"23pC","Number of Circuits":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC","On-State Resistance (Max)":"10Ohm","Voltage - Supply, Dual (V±)":"±4.5V ~ 20V","Switch Time (Ton, Toff) (Max)":"200ns, 100ns","Voltage - Supply, Single (V+)":"9V ~ 40V","Current - Leakage (IS(off)) (Max)":"1nA","Multiplexer/Demultiplexer Circuit":"1:1","Channel Capacitance (CS(off), CD(off))":"25pF, 25pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.4","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.40000","currency":"USD"},{"qty":10,"price":"$5.74500","currency":"USD"},{"qty":25,"price":"$5.43120","currency":"USD"},{"qty":100,"price":"$4.70710","currency":"USD"},{"qty":250,"price":"$4.46572","currency":"USD"},{"qty":500,"price":"$4.00708","currency":"USD"},{"qty":1000,"price":"$3.37946","currency":"USD"},{"qty":2500,"price":"$3.21049","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3eabf17d148ff574e2374d9b920f91c1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is MAX4656ESA+ obsolete or active?","answer":"The MAX4656ESA+ is listed as Active in production. No discontinuation notice or last-time-buy date has been issued. It remains available for new designs and ongoing production."},{"question":"What is the difference between MAX4656ESA+ and MAX4657ESA+?","answer":"The MAX4657ESA+ is the same SPST switch but with a normally-closed (NC) pole instead of normally-open (NO). All other key specs – 10 Ohm on-resistance, 210 MHz bandwidth, supply range, package, temperature grade – are identical. Choose the NO version if your signal path needs to be open when the control voltage is low; choose the NC version if it should be closed by default."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4656ESA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4656ESA 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}}