CD4051BM Texas Instruments Multiplexer/Demultiplexer ICs (SOIC-16) In Stock
CD4051BM is a CMOS single 8-channel analog multiplexer/demultiplexer by Texas Instruments. Key specs: 20 MHz bandwidth, -0.5 V to 20.5 V input range, 16-pin SOIC package. From $0.40, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOIC-16
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD4051BM Datasheet PDF
- Category
- Multiplexer/Demultiplexer ICs
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD4051BM?
- Single 8-channel analog multiplexer/demultiplexer with 20 MHz bandwidth for high-speed signal routing
- Wide input voltage range of -0.5 V to 20.5 V with dual supply support (-5 V negative rail) for versatile analog signal handling
- Low on-resistance CMOS switches enabling minimal signal distortion across all 8 channels in 16-pin SOIC package
What is CD4051BM used for?
The CD4051BM is widely used in data acquisition systems and test equipment where multiple analog signal sources must be sequentially connected to a single ADC or measurement channel. Its 20 MHz bandwidth and 8-channel configuration make it suitable for audio switching matrices, sensor array scanning in industrial controls, and analog signal routing in communication equipment. The device also serves well in programmable gain amplifier designs and analog-to-digital conversion front ends operating from dual supply rails.
What are the specifications of CD4051BM?
| YTEOL | 0 |
| Analog IC - Other Type | SINGLE-ENDED MULTIPLEXER |
| Bandwidth-Nom | 20MHz |
| Input Voltage-Max | 20.5V |
| Input Voltage-Min | -0.5 V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Normal Position | NC |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Off-state Isolation-Nom | 40dB |
| On-state Resistance Match-Nom | 15Ω |
| On-state Resistance-Max (Ron) | 1050Ω |
| Output | COMMON OUTPUT |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 20V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Switch-off Time-Max | 720ns |
| Switch-on Time-Max | 720ns |
| Switching | BREAK-BEFORE-MAKE |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## CD4051BM Alternates Showing results | Image |
| Package | SOIC-16 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Mexico |
Where can I find the CD4051BM datasheet?
CD4051BM Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD4051BM?
Compatible alternatives and drop-in replacements for CD4051BM:
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Frequently Asked Questions
What bandwidth does the CD4051BM support for analog signal routing?
The CD4051BM provides a nominal bandwidth of 20 MHz, allowing it to accurately pass analog signals up to 20 MHz through any of its 8 channels without significant attenuation. This makes it suitable for audio, instrumentation, and moderate-frequency RF switching applications where signal fidelity across the full 8-channel multiplexer is essential.
How does the dual supply configuration of the CD4051BM expand its analog input range?
The CD4051BM supports a negative supply voltage of -5 V alongside a positive supply up to 15 V, enabling an analog signal input range that spans from approximately -0.5 V to 20.5 V. This dual supply capability allows the device to handle bipolar analog signals without clipping, making it valuable in audio mixing consoles, sensor interfaces, and instrumentation amplifiers requiring symmetrical signal swing.
In a data acquisition system scanning 8 sensors at 1 kHz each, how does the CD4051BM simplify the design?
By multiplexing 8 analog sensor inputs into a single ADC channel, the CD4051BM eliminates the need for 8 separate ADC inputs, reducing BOM cost and PCB area. Switching between all 8 channels in under 100 ns settling time at a 1 kHz scan rate is easily achievable, and the 16-pin SOIC package requires only a few mm² of board space, making the overall data acquisition front end compact and cost-effective.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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