Overview
The CD4051BCMX is a single 8-channel analog multiplexer/demultiplexer produced by onsemi. This device is part of the CD4051B series and is designed to be a digitally controlled analog switch. It features low ON impedance and very low OFF leakage currents, making it suitable for a wide range of applications involving analog and digital signal processing. The CD4051BCMX has three binary control inputs (A, B, and C) and an inhibit input, which allow for the selection of one of eight channels to be turned on and connected to the output.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage Range | VDD - VSS or VDD - VEE | 3 | - | 20 | V |
| Dual Supply Range | ±VDD | ±3 | - | ±10 | V |
| ON Resistance | VDD = 15V | - | 125 | - | Ω |
| Channel Leakage | VDD = 15V | - | ±10pA | - | A |
| Quiescent Power Dissipation | - | - | 0.2µW | - | W |
| Propagation Delay Time (ON) | RL = 1 kΩ, CL = 50 pF | 160 | - | 320 | ns |
| Propagation Delay Time (OFF) | RL = 1 kΩ, CL = 50 pF | 75 | - | 150 | ns |
| Input Capacitance | Control input | 5 | - | 7.5 | pF |
| Output Capacitance | Common OUT/IN | 10 | - | 30 | pF |
Key Features
- Wide range of digital and analog signal levels: Digital (3V to 20V), Analog (≤ 20VP-P)
- Single supply range: 3V to 20V, and dual supply range: ±3V to ±10V
- Low ON resistance (125Ω typical at VDD = 15V) and low channel leakage (±10pA typical at VDD = 15V)
- Low quiescent power dissipation (0.2µW typical)
- Break-before-make switching eliminates channel overlap
- Bidirectional signal path
- ESD protection: HBM 3000V, CDM 2000V
- Pin compatible with industry standard 4051 muxes
Applications
- Analog and digital multiplexing and demultiplexing
- Analog to digital and digital to analog conversion
- Signal gating
- Factory automation
- Televisions, appliances, and consumer audio
- Programmable logic circuits and sensors
Q & A
- What is the CD4051BCMX? The CD4051BCMX is a single 8-channel analog multiplexer/demultiplexer produced by onsemi.
- What are the supply voltage ranges for the CD4051BCMX? The device operates with a single supply range of 3V to 20V and a dual supply range of ±3V to ±10V.
- What is the typical ON resistance of the CD4051BCMX? The typical ON resistance is 125Ω at VDD = 15V.
- What is the quiescent power dissipation of the CD4051BCMX? The quiescent power dissipation is typically 0.2µW.
- Does the CD4051BCMX have ESD protection? Yes, it has ESD protection with HBM 3000V and CDM 2000V.
- What are the common applications of the CD4051BCMX? Common applications include analog and digital multiplexing, signal gating, factory automation, and consumer electronics.
- How does the inhibit input function on the CD4051BCMX? When a logical “1” is present at the inhibit input terminal, all channels are turned off.
- Is the CD4051BCMX bidirectional? Yes, the CD4051BCMX has a bidirectional signal path.
- What is the propagation delay time for the CD4051BCMX? The propagation delay time (ON) is typically 160-320 ns, and (OFF) is typically 75-150 ns.
- Is the CD4051BCMX pin compatible with other industry standard multiplexers? Yes, it is pin compatible with industry standard 4051 muxes.
