Overview
The CD74HC4051NSRE4, produced by Texas Instruments, is a digitally controlled analog switch that utilizes silicon gate CMOS technology. This device combines the operating speeds of LSTTL with the low power consumption of standard CMOS integrated circuits. It functions as an analog multiplexer and demultiplexer, controlling analog voltages across the voltage supply range (e.g., VCC to VEE). The CD74HC4051 is a bidirectional switch, allowing any analog input to be used as an output and vice versa, with features such as low ON resistance, low OFF leakages, and an enable control that disables all switches when high.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package Type | SOIC (D) | 16 Pins |
| Operating Temperature Range | -55°C to 125°C | |
| ON Resistance | Typical at VCC – VEE = 4.5V | 70Ω |
| ON Resistance | Typical at VCC – VEE = 9V | 40Ω |
| Control Voltage | 4.5V to 5.5V | |
| Switch Voltage | 0V to 10V | |
| Input Logic Compatibility | LSTTL and CMOS | VIL = 0.8V max, VIH = 2V min |
| Propagation Delay | Typical at VCC = 5V, TA = 25°C | 10 ns to 15 ns |
Key Features
- Qualified for automotive applications
- Wide analog input voltage range: ±5V maximum
- Low ON-resistance: 70Ω typical (VCC – VEE = 4.5V) and 40Ω typical (VCC – VEE = 9V)
- Low crosstalk between switches
- Fast switching and propagation speeds
- Break-before-make switching
- Wide operating temperature range: –40°C to +125°C
- Direct LSTTL and CMOS input logic compatibility
Applications
The CD74HC4051NSRE4 is versatile and can be used in various applications, including:
- Automotive systems due to its qualification for automotive use
- Analog signal routing and switching in audio and video equipment
- Data acquisition systems where multiple analog inputs need to be multiplexed
- Industrial control systems requiring high-speed analog switching
- Medical devices that need precise analog signal management
Q & A
- What is the primary function of the CD74HC4051NSRE4?
The CD74HC4051NSRE4 is a digitally controlled analog multiplexer and demultiplexer.
- What is the operating temperature range of the CD74HC4051NSRE4?
The operating temperature range is –55°C to 125°C.
- What are the typical ON resistances of the CD74HC4051NSRE4?
The typical ON resistances are 70Ω at VCC – VEE = 4.5V and 40Ω at VCC – VEE = 9V.
- What is the control voltage range for the CD74HC4051NSRE4?
The control voltage range is 4.5V to 5.5V.
- Is the CD74HC4051NSRE4 compatible with LSTTL and CMOS input logic?
- What is the propagation delay of the CD74HC4051NSRE4?
The propagation delay is typically between 10 ns to 15 ns at VCC = 5V and TA = 25°C.
- Can the CD74HC4051NSRE4 be used in automotive applications?
- What is the switch voltage range of the CD74HC4051NSRE4?
The switch voltage range is 0V to 10V.
- Does the CD74HC4051NSRE4 have an enable control feature?
- What type of switching does the CD74HC4051NSRE4 use?
- What is the package type of the CD74HC4051NSRE4?
