Overview
The 74HC4851PW,112 is a high-performance 8-channel analog multiplexer/demultiplexer integrated circuit (IC) manufactured by Nexperia USA Inc. This device is part of the 74HC/74HCT family and is specified in compliance with JEDEC standard no. 7A. It features three digital select inputs (S0 to S2) and an active-LOW enable input (E), along with eight independent inputs/outputs (Y0 to Y7) and a common input/output (Z).
The 74HC4851PW is designed to handle precision signal routing applications, particularly in environments where voltages may exceed the supply voltage, such as in automotive and industrial settings.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2.0 - 6.0 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Switch Time (Ton, Toff) | 78 ns, 78 ns | ns |
| On-State Resistance (Max) | 195 Ω | Ω |
| Current - Leakage (IS(off)) | 100 nA | nA |
| Channel Capacitance (CS(off), CD(off)) | 10 pF | pF |
| Package Type | 16-TSSOP (Thin Shrink Small Outline Package) | |
| Package Width | 0.173" (4.40 mm) |
Key Features
- Injection-Current Effect Control: Allows signals at disabled analog input channels to exceed the supply voltage without affecting the signal of the enabled analog channel, eliminating the need for external diode/resistor networks.
- Low On-State Resistance: Ranges from 59 Ω at VCC = 6.0 V to 400 Ω at VCC = 2.0 V, ensuring minimal signal degradation.
- Fast Switching Times: Maximum switch times of 78 ns for both Ton and Toff.
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V, making it versatile for various applications.
- ESD Protection: Enhanced ESD protection for robustness in harsh environments.
- Compact Package: 16-TSSOP package suitable for space-constrained designs.
- AEC-Q100 Qualified: Suitable for automotive applications with high reliability and longevity.
Applications
The 74HC4851PW,112 is widely used in various industries due to its robust features and reliability. Key application areas include:
- Automotive: Ideal for automotive systems where voltage fluctuations are common and high reliability is crucial.
- Industrial: Suitable for industrial control systems, sensors, and other applications requiring precise signal routing.
- Consumer Electronics: Used in consumer devices that require low power consumption and high signal integrity.
- Medical Devices: Applicable in medical equipment where precise signal handling is essential.
Q & A
- What is the primary function of the 74HC4851PW,112 IC?
The primary function is to act as an 8-channel analog multiplexer/demultiplexer with injection-current effect control.
- What is the supply voltage range for the 74HC4851PW,112?
The supply voltage range is from 2.0 V to 6.0 V.
- What is the typical on-state resistance of the 74HC4851PW,112 at 6.0 V supply voltage?
The typical on-state resistance at 6.0 V supply voltage is 59 Ω.
- What is the maximum switch time (Ton, Toff) for the 74HC4851PW,112?
The maximum switch time is 78 ns for both Ton and Toff.
- What type of package does the 74HC4851PW,112 come in?
The device comes in a 16-TSSOP (Thin Shrink Small Outline Package).
- Is the 74HC4851PW,112 AEC-Q100 qualified?
Yes, the 74HC4851PW,112 is AEC-Q100 qualified, making it suitable for automotive applications.
- What is the operating temperature range for the 74HC4851PW,112?
The operating temperature range is from -40°C to 125°C.
- What is the purpose of the injection-current effect control in the 74HC4851PW,112?
The injection-current effect control prevents signals at disabled analog input channels from affecting the signal of the enabled analog channel, even if the signals exceed the supply voltage.
- Does the 74HC4851PW,112 have ESD protection?
Yes, the device has enhanced ESD protection.
- What are some common applications of the 74HC4851PW,112?
Common applications include automotive, industrial, consumer electronics, and medical devices.
