Overview
The CD4051BMT, produced by Texas Instruments, is a digitally-controlled analog multiplexer/demultiplexer integrated circuit. This device is part of the CD4051 series and is specifically packaged in a 16-pin SOIC (Small Outline Integrated Circuit) package. The CD4051BMT is designed to handle a wide range of digital and analog signal levels, making it versatile for various applications. It features low ON resistance, high OFF resistance, and very low quiescent power dissipation, which are crucial for efficient and reliable operation in different environments.
Key Specifications
| Parameter | Description | Typical Value |
|---|---|---|
| Digital Signal Range | 3 V to 20 V | - |
| Analog Signal Range | ≤ 20 V peak-to-peak | - |
| Supply Voltage Range (Single Supply) | 3 V to 20 V | - |
| Supply Voltage Range (Dual Supply) | ± 3 V to ± 10 V | - |
| ON Resistance | 125 Ω (typical) at VDD = 15 V | 125 Ω |
| OFF Leakage Current | ±10 pA (typical) at VDD = 15 V | ±10 pA |
| Quiescent Power Dissipation | 0.2 µW (typical) | 0.2 µW |
| Maximum Input Current | 1 µA at 18 V | 1 µA |
| Package Type | 16-pin SOIC | - |
Key Features
- Wide Range of Digital and Analog Signal Levels: Digital signals from 3 V to 20 V and analog signals up to 20 V peak-to-peak.
- Low ON Resistance: 125 Ω (typical) over the input range for VDD = 15 V.
- High OFF Resistance and Low Channel Leakage: ±10 pA (typical) at VDD = 15 V.
- Logic-Level Conversion: For digital addressing signals of 3 V to 20 V.
- Very Low Quiescent Power Dissipation: 0.2 µW (typical) under all digital-control input and supply conditions.
- Binary Address Decoding on Chip: Three binary control inputs (A, B, C) and an inhibit input.
- Break-Before-Make Switching: Eliminates channel overlap.
- ESD Protection: HBM: 3000V, CDM: 2000V.
- Bidirectional Signal Path: Allows for flexible signal routing.
Applications
- Analog and Digital Multiplexing and Demultiplexing: Selecting one of multiple analog or digital signals to be connected to a single output.
- Analog to Digital and Digital to Analog Conversion: Facilitating the conversion between analog and digital signals.
- Signal Gating: Controlling the flow of signals in a circuit.
- Factory Automation: Used in automated systems for signal management.
- Televisions and Appliances: For signal switching and control in consumer electronics.
- Consumer Audio: In audio equipment for signal routing and switching.
- Programmable Logic Circuits: As part of programmable logic circuits for flexible signal management.
- Sensors: In sensor systems for signal multiplexing and demultiplexing.
Q & A
- What is the CD4051BMT used for?
The CD4051BMT is used as an analog multiplexer/demultiplexer, allowing the selection of one of eight analog input channels to be connected to a single output, or vice versa.
- What are the typical operating voltage ranges for the CD4051BMT?
The device operates with a single supply range of 3 V to 20 V and a dual supply range of ± 3 V to ± 10 V.
- What is the ON resistance of the CD4051BMT?
The typical ON resistance is 125 Ω at VDD = 15 V.
- How does the CD4051BMT handle channel switching?
The device uses break-before-make switching to eliminate channel overlap.
- What is the quiescent power dissipation of the CD4051BMT?
The quiescent power dissipation is typically 0.2 µW.
- What kind of ESD protection does the CD4051BMT have?
The device has ESD protection with HBM: 3000V and CDM: 2000V.
- How do you minimize noise when using the CD4051BMT?
Use bypass capacitors (typically 0.1 µF) between VDD and VSS and between VEE and VSS to stabilize the power supply and minimize noise.
- Does the CD4051BMT have internal current drive circuitry?
No, the CD4051BMT does not have internal current drive circuitry and cannot sink or source current.
- What are some common applications of the CD4051BMT?
Common applications include analog and digital multiplexing, signal gating, factory automation, and consumer electronics.
- What is the package type of the CD4051BMT?
The CD4051BMT is packaged in a 16-pin SOIC.
