{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD4051BPWRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD4051BPWRG4","canonicalUrl":"https://icboms.com/texas-instruments/CD4051BPWRG4","factsUrl":"https://icboms.com/api/mcp/products/CD4051BPWRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments CD4051BPWRG4, single 8:1 CMOS analog multiplexer/demultiplexer, 240 Ohm max on-resistance, 20 MHz bandwidth, ±2.5V to 9V dual or 3V to 20V single supply, -55 to 125 C, 16-TSSOP package.","salesMarkdown":"## 8:1 analog multiplexer — signal routing for harsh environments The CD4051BPWRG4 from Texas Instruments is a single 8:1 CMOS analog multiplexer/demultiplexer, meaning it routes one of eight analog or digital signals to a common output (or vice versa). The 8:1 configuration is the standard building block for data acquisition, sensor scanning, and test equipment channel selection. The 16-TSSOP package keeps the board footprint compact for dense channel cards. The 240 Ohm maximum on-state resistance (Ron) sets the insertion loss for the analog path. In a 10 kOhm load, the Ron adds about 2.3 % attenuation — acceptable for most 8-bit to 10-bit systems, but for precision 12-bit+ designs you'll want to account for the voltage divider effect or buffer the output. The 5 Ohm channel-to-channel matching helps keep gain errors consistent across the multiplexer channels. The 20 MHz -3 dB bandwidth is enough for audio-frequency signals and low-speed data acquisition up to a few MHz. For video or RF switching, the bandwidth and the 30 pF drain capacitance will roll off the signal — this part is best kept in the sub-1 MHz analog or digital multiplexing space. ## Supply flexibility — single or dual rails The CD4051BPWRG4 operates from either a single supply (3 V to 20 V) or dual supplies (±2.5 V to ±9 V). Dual supplies let you switch bipolar signals (e.g., ±5 V audio) without level-shifting. The single-supply range covers standard 5 V and 12 V logic and analog rails commonly found in industrial PLCs and sensor interfaces. There is no announced last-time-buy or obsolescence notice.","metaTitle":"CD4051BPWRG4 8:1 Multiplexer/Demux, 16-TSSOP, 240 Ohm Ron","metaDescription":"Texas Instruments CD4051BPWRG4 single 8:1 analog MUX/DEMUX in 16-TSSOP. 240 Ohm max on-resistance, 20 MHz bandwidth, -55 to 125 C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Crosstalk":"-","Mounting Type":"Surface Mount","-3db Bandwidth":"20MHz","Package / Case":"16-TSSOP (0.173\\\", 4.40mm 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-TSSOP","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":"$58.8000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2f82f8b629955ed19c1134c46ca4405e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the on-resistance of CD4051BPWRG4?","answer":"The maximum on-state resistance is 240 Ohms, with channel-to-channel matching of 5 Ohms. The Ron is specified at room temperature; expect it to increase at the 125°C end of the operating range."},{"question":"Can CD4051BPWRG4 be used for audio signal switching?","answer":"Yes, the 20 MHz bandwidth and 240 Ohm Ron are adequate for line-level audio routing (20 Hz to 20 kHz). The 100 nA max off-leakage current will not introduce audible noise in most designs. For balanced or low-impedance audio, consider buffering the output."},{"question":"What are the alternatives to CD4051BPWRG4?","answer":"The CD4051 family has multiple package and temperature variants (e.g., CD4051B in PDIP, SOIC, or TSSOP). For a pin-compatible drop-in, the CD4051BPWR (non-G4) shares the same 16-TSSOP footprint and specifications; the G4 suffix indicates lead-free / RoHS compliance, which is now standard across the family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD4051BPWRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD4051BPWRG4 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}}