Overview
The CD4051BPWR, produced by Texas Instruments, is a CMOS single 8-channel analog multiplexer or demultiplexer. It is part of the CD405xB series, which includes digitally-controlled analog switches with low ON impedance and very low OFF leakage current. These multiplexers are designed to control analog signals up to 20 VP-P using digital signal amplitudes ranging from 3V to 20V. The device is known for its low quiescent power dissipation and is suitable for a wide range of applications requiring analog signal switching and routing.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD - VSS) | -0.5 | - | 20 | V |
| Supply Voltage (VDD - VEE) | -20 | - | 20 | V |
| DC Input Voltage | -0.5 | - | VDD+0.5 | V |
| Maximum Junction Temperature (Ceramic Package) | - | - | 175 | °C |
| Maximum Junction Temperature (Plastic Package) | - | - | 150 | °C |
| Storage Temperature | -65 | - | 150 | °C |
| ON Resistance (Typical) | - | 125 | - | Ω |
| OFF Leakage Current (Typical) | - | ±10pA | - | - |
| Propagation Delay Time (Inhibit-to-Signal OUT) | - | 120-400 | - | ns |
| Package Type | - | - | TSSOP-16 | - |
| Operating Temperature Range | -55 | - | 125 | °C |
Key Features
- Wide range of digital and analog signal levels: Digital (3V to 20V), Analog (≤ 20VP-P).
- Low ON resistance, typically 125Ω over 15VP-P signal input range for VDD – VEE = 18V.
- High OFF resistance, channel leakage of ±10pA (typical) at VDD – VEE = 18V.
- Logic-level conversion for digital addressing signals to switch analog signals.
- Binary address decoding on chip.
- Very low quiescent power dissipation, 0.2µW (typical) at VDD – VSS = VDD – VEE = 10V.
- Break-before-make switching eliminates channel overlap.
Applications
The CD4051BPWR is versatile and can be used in various applications, including:
- Analog signal switching and routing in audio and video systems.
- Data acquisition systems where multiple analog inputs need to be multiplexed.
- Industrial control systems requiring the switching of analog signals.
- Medical devices that need precise analog signal handling.
- Automotive systems for sensor signal multiplexing.
Q & A
- What is the CD4051BPWR? The CD4051BPWR is a CMOS single 8-channel analog multiplexer or demultiplexer produced by Texas Instruments.
- What is the range of digital and analog signal levels it can handle? It can handle digital signals from 3V to 20V and analog signals up to 20 VP-P.
- What is the typical ON resistance of the CD4051BPWR? The typical ON resistance is 125Ω over 15VP-P signal input range for VDD – VEE = 18V.
- What is the quiescent power dissipation of the device? The quiescent power dissipation is typically 0.2µW at VDD – VSS = VDD – VEE = 10V.
- Does the CD4051BPWR support logic-level conversion? Yes, it supports logic-level conversion for digital addressing signals to switch analog signals.
- What is the operating temperature range of the CD4051BPWR? The operating temperature range is from -55°C to 125°C.
- What type of package does the CD4051BPWR come in? It comes in a TSSOP-16 package.
- How does the CD4051BPWR prevent channel overlap? It uses break-before-make switching to eliminate channel overlap.
- What are some common applications of the CD4051BPWR? Common applications include analog signal switching in audio and video systems, data acquisition systems, industrial control systems, medical devices, and automotive systems.
- What is the maximum junction temperature for the ceramic package? The maximum junction temperature for the ceramic package is 175°C.
