Overview
The 74HCT4851PW,118 is a high-speed Si-gate CMOS 8-channel analog multiplexer/demultiplexer produced by Nexperia USA Inc. This device is specified in compliance with JEDEC standard no. 7A and is designed for a wide range of analog signal switching applications. It features three digital select inputs (S0 to S2), an active-LOW enable input (E), eight independent inputs/outputs (Y0 to Y7), and a common input/output (Z). The 74HCT4851PW is particularly useful in environments where voltages in excess of the supply voltage are common, such as in automotive applications, due to its injection-current effect control.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Configuration | SP8T-Z | - |
| VCC (Supply Voltage) | 4.5 - 5.5 | V |
| Logic Switching Levels | TTL | - |
| On-State Resistance (RON) | 210 | Ω |
| Switch Time (Ton, Toff) | 25ns, 80ns | - |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | TSSOP16 (SOT403-1) | - |
| Number of Pins | 16 | - |
| Channel-to-Channel Matching (ΔRon) | 2 | Ω |
| Current - Leakage (IS(off)) | 100 | nA |
Key Features
- High-Speed Operation: The 74HCT4851PW operates with fast switching times of 25ns (on) and 80ns (off), making it suitable for high-speed applications.
- Low On-State Resistance: The device has a low on-state resistance of up to 210Ω, ensuring minimal signal attenuation.
- Injection-Current Effect Control: This feature is particularly beneficial in automotive and other high-voltage environments, helping to mitigate voltage spikes.
- Wide Operating Temperature Range: The device operates over a temperature range of -40°C to 125°C, making it versatile for various environmental conditions.
- Compact Surface Mount Package: The TSSOP16 package is ideal for space-constrained designs.
- Single Supply Voltage: The device operates on a single supply voltage of 4.5V to 5.5V.
Applications
- Automotive Electronics: The device's ability to handle voltages in excess of the supply voltage and its wide operating temperature range make it suitable for automotive applications.
- Industrial Control Systems: It is used in various industrial control systems where reliable and fast analog signal switching is required.
- Instrumentation and Test Equipment: The 74HCT4851PW is used in instrumentation and test equipment due to its high accuracy and reliability in signal switching.
- Consumer and Mobile Electronics: It is also applicable in consumer and mobile electronics where compact and efficient analog signal switching is necessary.
Q & A
- What is the primary function of the 74HCT4851PW?
The primary function of the 74HCT4851PW is to act as an 8-channel analog multiplexer/demultiplexer.
- What is the supply voltage range for the 74HCT4851PW?
The supply voltage range for the 74HCT4851PW is 4.5V to 5.5V.
- What is the operating temperature range of the 74HCT4851PW?
The operating temperature range is -40°C to 125°C.
- What is the maximum on-state resistance of the 74HCT4851PW?
The maximum on-state resistance is 210Ω.
- What is the switching time for the 74HCT4851PW?
The switching times are 25ns (on) and 80ns (off).
- What package type is the 74HCT4851PW available in?
The 74HCT4851PW is available in a TSSOP16 (SOT403-1) package.
- What is the channel-to-channel matching for the 74HCT4851PW?
The channel-to-channel matching is up to 2Ω.
- Is the 74HCT4851PW RoHS compliant?
Yes, the 74HCT4851PW is RoHS compliant.
- What are some common applications of the 74HCT4851PW?
Common applications include automotive electronics, industrial control systems, instrumentation and test equipment, and consumer electronics.
- What is the significance of injection-current effect control in the 74HCT4851PW?
The injection-current effect control helps mitigate voltage spikes and is particularly beneficial in automotive and other high-voltage environments.
