Overview
The CD4051BM, produced by Texas Instruments, is a CMOS analog multiplexer and demultiplexer. This device is designed to control analog signals using digital inputs, making it versatile in various electronic applications. The CD4051BM features a single 8-channel multiplexer with three binary control inputs (A, B, and C) and an inhibit input. These control inputs select one of the eight channels to be turned on, connecting one of the eight inputs to the output. The device is known for its low ON resistance, very low OFF leakage current, and low quiescent power dissipation, making it efficient and reliable in signal transmission and control.
Key Specifications
| Specification | Value | Conditions |
|---|---|---|
| Supply Voltage Range | 3 V to 20 V | - |
| Dual Supply Range | ±3 V to ±10 V | - |
| ON Resistance (RON) | 125 Ω (typical) | VDD = 15 V |
| OFF Resistance (ROFF) | ±100 pA (typical) | VDD – VEE = 18 V |
| Quiescent Power Dissipation | 0.2 µW (typical) | VDD – VSS = VDD – VEE = 10 V |
| Propagation Delay Time | 120 ns to 240 ns | tr, tf = 20 ns, CL = 50 pF, RL = 10 kΩ |
| Operating Temperature Range | -55°C to +125°C | - |
| ESD Protection | HBM: 3000 V, CDM: 2000 V | - |
| Package Type | 16-pin SOIC | - |
Key Features
- Wide range of digital and analog signal levels: Digital (3 V to 20 V), Analog (≤ 20 VP-P).
- Low ON resistance and high OFF resistance, ensuring minimal signal distortion and leakage.
- Logic-level conversion for digital addressing signals to switch analog signals.
- Very low quiescent power dissipation, making it energy-efficient.
- Break-before-make switching to eliminate channel overlap.
- Bidirectional signal path for flexible signal routing.
- ESD protection (HBM: 3000 V, CDM: 2000 V) for enhanced reliability.
- Pin compatible with industry-standard 4051 multiplexers.
Applications
- Analog and digital multiplexing and demultiplexing.
- Analog to digital and digital to analog conversion.
- Signal gating.
- Factory automation.
- Televisions and consumer electronics.
- Appliances and consumer audio equipment.
- Programmable logic circuits and sensor applications.
- Keypad monitoring and interrupt-driven scanning in microcontroller-based systems.
Q & A
- What is the CD4051BM used for?
The CD4051BM is used as an analog multiplexer and demultiplexer, controlling analog signals with digital inputs in various electronic applications.
- What is the supply voltage range of the CD4051BM?
The supply voltage range is from 3 V to 20 V, and it also supports dual supply ranges from ±3 V to ±10 V.
- What is the typical ON resistance of the CD4051BM?
The typical ON resistance is 125 Ω at VDD = 15 V.
- What is the quiescent power dissipation of the CD4051BM?
The quiescent power dissipation is typically 0.2 µW at VDD – VSS = VDD – VEE = 10 V.
- Does the CD4051BM have ESD protection?
Yes, it has ESD protection with HBM: 3000 V and CDM: 2000 V.
- What is the operating temperature range of the CD4051BM?
The operating temperature range is from -55°C to +125°C.
- Is the CD4051BM pin compatible with other industry-standard multiplexers?
Yes, it is pin compatible with industry-standard 4051 multiplexers.
- What types of applications can the CD4051BM be used in?
It can be used in analog and digital multiplexing, signal gating, factory automation, consumer electronics, and more.
- How does the CD4051BM handle channel switching?
The CD4051BM uses break-before-make switching to eliminate channel overlap.
- What is the package type of the CD4051BM?
The package type is a 16-pin SOIC.
