Overview
The 74HCT4851PW,112 is a high-speed Si-gate CMOS 8-channel analog multiplexer/demultiplexer produced by Nexperia USA Inc. This device is designed to meet the stringent requirements of various high-speed analog applications. It is part of the 74HCT series, which is compatible with TTL logic levels, making it versatile for a wide range of electronic systems. The device is automotive qualified, complying with AEC-Q100 standards, and is suitable for use in harsh environmental conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 16-TSSOP (0.173, 4.40mm Width) | - |
| Supply Voltage | 4.5 V to 5.5 V | V |
| Switch Time (Ton, Toff) | 25ns, 80ns | ns |
| ON Resistance (peak) | 210 Ω (max at VCC = 4.5 V) | Ω |
| Operating Temperature Range | -40 °C to 125 °C | °C |
| Input Leakage Current | ±0.1 μA (max at VCC = 5.5 V) | μA |
| Supply Current | 2.0 μA (max at VCC = 5.5 V) | μA |
| Channel-to-Channel Matching | 2 Ω | Ω |
Key Features
- High-Speed Operation: Fast switching times of 25ns (turn-on) and 80ns (turn-off) ensure efficient analog signal processing.
- Low On-State Resistance: Maximum on-state resistance of 210 Ω, ensuring precise signal transfer with minimal loss.
- Tight Channel-to-Channel Matching: Channel matching of 2 Ω, which is crucial for maintaining signal integrity.
- Wide Operating Temperature Range: Operates reliably from -40 °C to 125 °C, making it suitable for diverse environmental conditions.
- Injection-Current Effect Control: Allows signals at disabled analog input channels to exceed the supply voltage, which is particularly useful in automotive applications.
Applications
- Data Acquisition Systems: Ideal for high-speed data acquisition due to its fast switching times and low on-state resistance.
- Instrumentation and Test Equipment: Used in various test and measurement instruments where precise signal switching is required.
- Industrial Control and Automation: Suitable for industrial control systems that demand reliable and high-speed analog signal processing.
- Automotive Systems: Qualified to AEC-Q100 standards, making it suitable for use in automotive applications where harsh environmental conditions are common.
Q & A
- What is the primary function of the 74HCT4851PW,112?
The primary function of the 74HCT4851PW,112 is to act as an 8-channel analog multiplexer/demultiplexer.
- What is the package type of the 74HCT4851PW,112?
The package type is 16-TSSOP (0.173, 4.40mm Width).
- What is the supply voltage range for the 74HCT4851PW,112?
The supply voltage range is from 4.5 V to 5.5 V.
- What are the typical switch times for the 74HCT4851PW,112?
The typical switch times are 25ns for turn-on and 80ns for turn-off.
- What is the maximum on-state resistance of the 74HCT4851PW,112?
The maximum on-state resistance is 210 Ω.
- What is the operating temperature range of the 74HCT4851PW,112?
The operating temperature range is from -40 °C to 125 °C.
- Is the 74HCT4851PW,112 automotive qualified?
Yes, it is qualified to AEC-Q100 standards.
- What are some common applications of the 74HCT4851PW,112?
Common applications include data acquisition systems, instrumentation and test equipment, industrial control and automation, and automotive systems.
- What is the significance of injection-current effect control in the 74HCT4851PW,112?
The injection-current effect control allows signals at disabled analog input channels to exceed the supply voltage, which is particularly useful in automotive applications.
- How does the 74HCT4851PW,112 ensure precise signal transfer?
It ensures precise signal transfer through low on-state resistance and tight channel-to-channel matching.
