Overview
The CD74HC4051-Q1 is a digitally controlled analog switch/multiplexer produced by Texas Instruments. This device is designed to operate in automotive and other demanding environments, utilizing silicon-gate CMOS technology to achieve high operating speeds similar to LSTTL while maintaining the low power consumption of standard CMOS integrated circuits. It is capable of controlling analog voltages across a wide range, making it versatile for various applications.
Key Specifications
| Parameter | Test Conditions | Typical Value | Unit |
|---|---|---|---|
| ON Resistance | VCC - VEE = 4.5V | 70 | Ω |
| ON Resistance | VCC - VEE = 9V | 40 | Ω |
| Operation Control Voltage | 2V to 6V | V | |
| Switch Voltage | 0V to 10V | V | |
| Operating Free-Air Temperature | -40 to 125 | °C | |
| Input Transition Time | VCC = 2V | 0 to 1000 | ns |
| Input Transition Time | VCC = 4.5V | 0 to 500 | ns |
| Input Transition Time | VCC = 6V | 0 to 400 | ns |
| Switch Input Capacitance | 5 | pF | |
| Common Output Capacitance | 25 | pF | |
| Minimum Switch Frequency Response at -3 dB | VEE = -2.25V, VCC = 2.25V | 145 | MHz |
Key Features
- Qualified for automotive applications.
- Wide analog input voltage range of ± 5V maximum.
- Low ON resistance: 70Ω typical at VCC - VEE = 4.5V and 40Ω typical at VCC - VEE = 9V.
- Low crosstalk between switches.
- Fast switching and propagation speeds.
- Break-before-make switching.
- High noise immunity.
- Bidirectional switches allowing any analog input to be used as an output and vice versa.
- Enable control (E) to disable all switches to their OFF state.
Applications
- Digital radio.
- Signal gating.
- Factory automation.
- Televisions.
- Appliances.
- Programmable logic circuits.
- Sensors.
Q & A
- What is the CD74HC4051-Q1 used for?
The CD74HC4051-Q1 is a digitally controlled analog switch/multiplexer used for controlling analog voltages in various applications, including automotive, digital radio, signal gating, and more.
- What is the operating temperature range of the CD74HC4051-Q1?
The operating free-air temperature range is -40°C to 125°C.
- What are the typical ON resistance values for the CD74HC4051-Q1?
The typical ON resistance values are 70Ω at VCC - VEE = 4.5V and 40Ω at VCC - VEE = 9V.
- What is the switch voltage range for the CD74HC4051-Q1?
The switch voltage range is 0V to 10V.
- Does the CD74HC4051-Q1 have high noise immunity?
- What are the package options available for the CD74HC4051-Q1?
The device is available in SOIC (D) and TSSOP (PW) packages.
- How does the enable control (E) function in the CD74HC4051-Q1?
The enable control (E) disables all switches to their OFF state when it is high.
- What is the minimum switch frequency response at -3 dB for the CD74HC4051-Q1?
The minimum switch frequency response at -3 dB is 145 MHz at VEE = -2.25V and VCC = 2.25V.
- Is the CD74HC4051-Q1 suitable for automotive applications?
- What is the input transition time for the CD74HC4051-Q1 at different VCC values?
The input transition time ranges from 0 to 1000 ns at VCC = 2V, 0 to 500 ns at VCC = 4.5V, and 0 to 400 ns at VCC = 6V.
