{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD4051BMG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD4051BMG4","canonicalUrl":"https://icboms.com/texas-instruments/CD4051BMG4","factsUrl":"https://icboms.com/api/mcp/products/CD4051BMG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments CD4051BMG4, 8:1 analog multiplexer/demultiplexer, single/dual supply, 240 Ohm Ron, 20 MHz bandwidth, -55 to 125°C, 16-SOIC, Tube.","salesMarkdown":"## 8:1 analog switch with mil-temp range The Texas Instruments CD4051BMG4 is an 8-channel analog multiplexer/demultiplexer — one common I/O routes to any of eight independent channels, or the eight channels demux a single input to eight outputs. The 8:1 topology handles both directions symmetrically, so a single part replaces a mux or a demux depending on signal flow. On-state resistance is 240 Ohm maximum, which is the figure to use for worst-case insertion loss and voltage divider calculations. Channel-to-channel matching holds within 5 Ohm, so gain errors across the eight paths stay tight. The -3 dB bandwidth of 20 MHz means the switch passes signals up to the low-MHz range with minimal attenuation — adequate for audio, baseband video, and low-speed IF or data acquisition paths. ## Supply rails and signal headroom Single-supply operation covers 3 V to 20 V, and dual supplies span ±2.5 V to ±9 V. With dual rails, the analog signal can swing symmetrically around ground without a DC bias — useful for bipolar sensor inputs or audio paths. The single-supply range also lets the part run from common 5 V or 12 V logic rails. Leakage current off-channel is 100 nA maximum, which sets the floor for crosstalk and charge injection in high-impedance circuits. Channel capacitance measures 0.2 pF on the source side and 30 pF on the drain side — the larger drain capacitance loads the common bus and limits settling time when switching between channels. ## Temperature grade and deployment That qualifies the part for avionics, satellite payloads, downhole instrumentation, and any sealed or outdoor system where the ambient swings beyond industrial limits. The 16-SOIC package is surface-mount with a 0.154-inch body width, standard for automated assembly.","metaTitle":"CD4051BMG4 8:1 Analog Mux/Demux, 240 Ohm Ron, -55 to 125°C","metaDescription":"Texas Instruments CD4051BMG4 8:1 analog multiplexer/demultiplexer. 240 Ohm max on-resistance, 20 MHz bandwidth, -55 to 125°C, 16-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tube","Crosstalk":"-","Mounting Type":"Surface Mount","-3db Bandwidth":"20MHz","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Switch Circuit":"-","lifecycle_stage":"eol_hot","Charge Injection":"-","Number of Circuits":"1","Base Product Number":"CD4051","Operating Temperature":"-55°C~125°C(TA)","Supplier Device Package":"16-SOIC","On-State Resistance (Max)":"240Ohm","Voltage - Supply, Dual (V±)":"±2.5V ~ 9V","Switch Time (Ton, Toff) (Max)":"-","Voltage - Supply, Single (V+)":"3V ~ 20V","Current - Leakage (IS(off)) (Max)":"100nA","Multiplexer/Demultiplexer Circuit":"8:1","Channel Capacitance (CS(off), CD(off))":"0.2pF, 30pF","Channel-to-Channel Matching (ΔRon)":"5Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2f82f8b629955ed19c1134c46ca4405e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is CD4051BMG4 obsolete?","answer":"No. The product status is active."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD4051BMG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD4051BMG4 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}}