Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Configuration | 1-channel 8:1 analog mux/demux |
| Single Supply | 3 V to 20 V |
| Dual Supply | ±3 V to ±10 V |
| Analog Signal | Up to 20 Vp-p within supply conditions |
| On-Resistance | 125 Ω typical at VDD=15 V stated feature |
| Leakage | ±10 pA typical at VDD=15 V stated feature |
| Logic | Classic 4051 logic-level conversion / inhibit control |
| Exact Package / Packing | SOIC (D), 16 pins; 2500-piece large tape and reel; marking CD4051BM |
Product Overview
CD4051BM96 is the long-established CMOS 4051 8:1 analog multiplexer in a 2500-piece SOIC reel. Its main attraction is broad 3–20 V operation, industry-standard pin/function compatibility and proven use in legacy industrial/consumer analog routing.
It is not a low-Ron modern precision mux: the family quotes about 125 Ω typical on-resistance at 15 V. That can be perfectly acceptable into high-impedance loads but creates gain/settling errors with low source/load resistance.
For redesigns, modern TMUX parts may add 1.8 V logic, lower Ron or protection features. CD4051 remains valuable where wide supply range and established 4051 compatibility matter more than those improvements.
For related devices, see HKEQGOO’s Analog Switches & Multiplexers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | CD4051BM96 |
| Configuration | 1-channel 8:1 analog mux/demux |
| Single Supply | 3 V to 20 V |
| Dual Supply | ±3 V to ±10 V |
| Analog Signal | Up to 20 Vp-p within supply conditions |
| On-Resistance | 125 Ω typical at VDD=15 V stated feature |
| Leakage | ±10 pA typical at VDD=15 V stated feature |
| Logic | Classic 4051 logic-level conversion / inhibit control |
| Exact Package / Packing | SOIC (D), 16 pins; 2500-piece large tape and reel; marking CD4051BM |
| Manufacturer Status | Active / Production |
| Part Marking | CD4051BM |
Functional Highlights
Legacy compatibility can outweigh newer switch metrics
A mature board using the industry-standard 4051 pinout/supply scheme may prioritize qualified footprint/behavior over a new mux with better Ron.
High Ron makes source/load impedance part of the transfer function
Into a high-impedance ADC input the error can be small; into a low-resistance network the switch resistance can materially change gain and settling.
Design Considerations
- Include 125 Ω-class switch resistance and its variation in the analog error/settling model.
- Verify logic thresholds for the actual CD4051B supply; do not assume modern 1.8 V-compatible control at high supply.
- Retain external protection for signals that can exceed the analog supply rails.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists CD4051BM96 as Active / Production; SOIC (D), 16 pins; 2500-piece large tape and reel; Level-1-260C-UNLIM; −55°C to +125°C; marking CD4051BM.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
Request a Quote
To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
For faster, lower-resistance 8:1 analog switching at a lower supply voltage, compare CD74HC4051PWR (5-V-class high-speed CMOS mux; TI lists 40-Ω typical on-resistance and 200-MHz bandwidth). This CD4051BM96 supports higher single-supply voltages up to 20 V, but TI lists 125-Ω typical on-resistance and 20-MHz bandwidth under its own operating conditions. The SOIC-16 and TSSOP-16 board footprints also differ, and the typical numbers are not measurements under identical supplies; verify signal range, switch losses and PCB before choosing.
