Overview
The CD74HC4051NS, produced by Texas Instruments, is a high-speed CMOS logic analog multiplexer and demultiplexer. This device is part of the CDx4HC405x series and is known for its reliable performance and versatility in handling analog signals. It operates as a digitally controlled analog switch, allowing any analog input to be used as an output and vice versa. The CD74HC4051NS is particularly useful in systems that require the routing of multiple analog input sources to a common output, making it ideal for applications such as multi-channel data acquisition and signal processing.
Key Specifications
| Parameter | Conditions | Typical Value | Unit |
|---|---|---|---|
| Operating Temperature Range | -55°C to +125°C | - | °C |
| Operation Control Voltage | 2 V to 6 V | - | V |
| Switch Voltage | 0 V to 10 V | - | V |
| ON Resistance | VCC – VEE = 4.5 V | 70 Ω | Ω |
| ON Resistance | VCC – VEE = 9 V | 40 Ω | Ω |
| Propagation Delay | TA = 25°C, CL = 50 pF | 10 ns | ns |
| Package Type | SOP (NS) | - | - |
| Pins | 16 | - | - |
Key Features
- High-Speed Operation: Fast switching and propagation speeds with a typical propagation delay of 10 ns.
- Wide Voltage Range: Operates between 2V and 6V, ensuring compatibility with various power configurations.
- Low ON Resistance: Ensures minimal signal degradation with ON resistance around 70Ω (VCC – VEE = 4.5V) and 40Ω (VCC – VEE = 9V).
- Low Crosstalk Between Switches: Minimizes interference between channels.
- Break-Before-Make Switching: Ensures that the old channel is disconnected before the new one is connected.
- Wide Operating Temperature Range: Operates from –55°C to +125°C, making it suitable for a wide range of environments.
- Direct LSTTL Input Logic Compatibility: Compatible with LSTTL input logic and CMOS input compatibility.
- Qualified for Automotive Applications: Meets the stringent requirements for automotive use.
Applications
- Multi-Channel Data Acquisition: Ideal for use with ADCs like the ADS7924IRTER to simplify circuit complexity and expand data collection capabilities.
- Signal Processing: Useful in systems that require the routing of multiple analog input sources to a common output.
- Automotive Systems: Qualified for automotive applications, making it suitable for use in vehicle electronics.
- Industrial Control Systems: Can be used in various industrial control applications where multiple analog signals need to be managed efficiently.
Q & A
- What is the operating temperature range of the CD74HC4051NS?
The operating temperature range is from –55°C to +125°C.
- What is the typical ON resistance of the CD74HC4051NS?
The typical ON resistance is around 70Ω (VCC – VEE = 4.5V) and 40Ω (VCC – VEE = 9V).
- What is the propagation delay of the CD74HC4051NS?
The typical propagation delay is 10 ns at TA = 25°C and CL = 50 pF.
- Is the CD74HC4051NS compatible with LSTTL input logic?
Yes, it is compatible with LSTTL input logic and also has CMOS input compatibility.
- What is the package type of the CD74HC4051NS?
The package type is SOP (NS) with 16 pins.
- Can the CD74HC4051NS be used in automotive applications?
Yes, it is qualified for automotive applications.
- What is the switch voltage range of the CD74HC4051NS?
The switch voltage range is from 0 V to 10 V.
- How does the CD74HC4051NS handle channel switching?
The device uses break-before-make switching to ensure that the old channel is disconnected before the new one is connected.
- Can the CD74HC4051NS be used with ADCs?
Yes, it is ideal for use with ADCs like the ADS7924IRTER for multi-channel data acquisition.
- What are some common applications of the CD74HC4051NS?
Common applications include multi-channel data acquisition, signal processing, automotive systems, and industrial control systems.
