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CD4051BE DIP-16 8-Channel Analog Multiplexer/Demultiplexer CMOS IC (5-Pack)
CD4051BE DIP-16 8-Channel Analog Multiplexer/Demultiplexer CMOS IC (5-Pack)
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CD4051BE DIP-16 8-Channel Analog Multiplexer/Demultiplexer CMOS IC (5-Pack)
The CD4051BE is a single 8-channel analog multiplexer/demultiplexer in a DIP-16 through-hole package, built on CMOS technology for wide supply voltage operation (3V–18V). Three binary select inputs (A, B, C) connect one of 8 analog channels to a common I/O pin — functionally equivalent to the 74HC4051 but with a wider supply range and lower on-resistance at higher voltages.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | CD4051BE |
| Package | DIP-16 |
| Number of Channels | 8 (single 8:1 MUX) |
| Select Inputs | 3 (A, B, C — binary encoded) |
| Supply Voltage (VDD) | 3V – 18V |
| Signal Voltage Range | VSS – VDD (analog) |
| On-Resistance (RON) | ~80Ω @ VDD=5V / ~40Ω @ VDD=15V |
| Enable Input | Active-low (INH pin) |
| Operating Temperature | −55°C to +125°C |
| Quantity | 5 pieces |
CD4051BE vs 74HC4051 — Key Differences
| Feature | CD4051BE | 74HC4051 |
|---|---|---|
| Supply Voltage | 3V – 18V | 2V – 6V |
| RON @ 5V | ~80Ω | |
| ~70Ω | ||
| RON @ 15V | ~40Ω | N/A |
| Best For | High-voltage analog routing (9V–15V) | 3.3V/5V digital systems |
Why Choose CD4051BE?
- Wide Supply Range — 3V–18V enables use in 9V, 12V, and 15V analog signal routing
- 8 Channels, 3 Control Pins — Expand ADC inputs or route analog signals with minimal GPIO
- Bidirectional — Works as MUX (8-to-1) or DEMUX (1-to-8)
- INH Enable Pin — Disable all channels for power saving or bus sharing
- DIP-16 Package — Breadboard-friendly for prototyping
Typical Applications
- Arduino ADC expansion (8 analog sensors on 1 analog pin)
- Audio signal routing and switching matrix (9V–15V audio circuits)
- Sensor array multiplexing in industrial systems
- DAC output distribution to multiple loads
- Battery cell voltage monitoring (8-cell pack)
FAQ
Q: Can CD4051BE handle audio signals at 12V supply?
A: Yes — at VDD=12V, signal range is 0–12V and RON drops to ~50Ω, suitable for line-level audio routing. Use AC coupling capacitors for audio applications.
Q: Is CD4051BE pin-compatible with 74HC4051?
A: Yes — same DIP-16 pinout. CD4051BE operates at higher voltages; 74HC4051 is faster at 5V.
Package Contents
- 5× CD4051BE DIP-16 8-Channel Analog Multiplexer IC
