Overview
The CD74HC4051PWTG4, produced by Texas Instruments, is a digitally controlled analog switch that utilizes silicon gate CMOS technology. This device operates as an analog multiplexer and demultiplexer, allowing it to control analog voltages across a wide supply range (VCC to VEE). It features bidirectional switches, enabling any analog input to be used as an output and vice versa. The CD74HC4051PWTG4 is designed for high-speed operation with low power consumption, similar to LSTTL but with the benefits of standard CMOS integrated circuits.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Supply Voltage (VCC - VEE) | -0.5 to 10.5 | V | Operating range |
| ON Resistance | 70 Ω (typical at VCC - VEE = 4.5V) | Ω | VCC - VEE = 4.5V |
| ON Resistance | 40 Ω (typical at VCC - VEE = 9V) | Ω | VCC - VEE = 9V |
| Propagation Delay (tPHL, tPLH) | 12 ns (typical at VCC = 4.5V, TA = 25°C) | ns | VCC = 4.5V, TA = 25°C |
| Maximum Switch Turn-Off Delay | 50 ns (typical at VCC = 4.5V, TA = 25°C) | ns | VCC = 4.5V, TA = 25°C |
| Operating Temperature Range | -40°C to +125°C | °C | |
| Package Type | TSSOP |
Key Features
- 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
- Operation control voltage: 2V to 6V
- Direct LSTTL input logic compatibility
- CMOS input compatibility
- Qualified for automotive applications
Applications
The CD74HC4051PWTG4 is versatile and can be used in various applications, including:
- Automotive systems: Due to its qualification for automotive applications, it is suitable for use in vehicle electronics.
- Audio and video switching: Its low ON-resistance and fast switching speeds make it ideal for audio and video signal routing.
- Industrial control systems: It can be used in industrial settings for controlling and switching analog signals.
- Medical devices: The device's wide operating temperature range and low power consumption make it suitable for medical equipment.
- Data acquisition systems: It can be used to multiplex and demultiplex analog signals in data acquisition systems.
Q & A
- What is the CD74HC4051PWTG4?
The CD74HC4051PWTG4 is a digitally controlled analog switch that functions as an analog multiplexer and demultiplexer.
- What is the typical ON-resistance of the CD74HC4051PWTG4?
The typical ON-resistance is 70Ω at VCC - VEE = 4.5V and 40Ω at VCC - VEE = 9V.
- What is the operating temperature range of the CD74HC4051PWTG4?
The operating temperature range is –40°C to +125°C.
- What package type is the CD74HC4051PWTG4 available in?
The device is available in a TSSOP package.
- Is the CD74HC4051PWTG4 qualified for automotive applications?
Yes, it is qualified for automotive applications.
- What is the propagation delay of the CD74HC4051PWTG4?
The propagation delay (tPHL, tPLH) is typically 12 ns at VCC = 4.5V and TA = 25°C.
- Does the CD74HC4051PWTG4 support break-before-make switching?
Yes, it supports break-before-make switching.
- What is the maximum switch turn-off delay of the CD74HC4051PWTG4?
The maximum switch turn-off delay is typically 50 ns at VCC = 4.5V and TA = 25°C.
- Is the CD74HC4051PWTG4 compatible with LSTTL input logic?
Yes, it is compatible with LSTTL input logic.
- What is the typical crosstalk between switches in the CD74HC4051PWTG4?
The device has low crosstalk between switches.
- Can the CD74HC4051PWTG4 be used in audio and video applications?
Yes, its low ON-resistance and fast switching speeds make it suitable for audio and video signal routing.
