Overview
The 74HCT4851PW-Q100 is an 8-channel analog multiplexer/demultiplexer designed by Nexperia. This high-speed Si-gate CMOS device is specified in compliance with JEDEC standard no. 7A and is particularly suited for automotive applications due to its robust features and compliance with the Automotive Electronics Council (AEC) standard Q100 (Grade 1).
The device 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). It is notable for its injection-current effect control, which allows signals at disabled analog input channels to exceed the supply voltage without affecting the signal of the enabled analog channel.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC supply voltage | 2.0 | 6.0 | V | ||
| VI input voltage | 0 to VCC | 0 | VCC | V | |
| VSW switch voltage | 0 to VCC | 0 | VCC | V | |
| Tamb ambient temperature | -40 | 125 | °C | ||
| RON ON-state resistance | VCC = 2.0 V, ISW ≤ 2 mA | 400 | 650 | 700 | Ω |
| RON ON-state resistance | VCC = 3.0 V, ISW ≤ 2 mA | 215 | 330 | 380 | Ω |
| RON ON-state resistance | VCC = 3.3 V, ISW ≤ 2 mA | 120 | 270 | 345 | Ω |
| RON ON-state resistance | VCC = 4.5 V, ISW ≤ 2 mA | 76 | 210 | 270 | Ω |
| RON ON-state resistance | VCC = 6.0 V, ISW ≤ 2 mA | 59 | 200 | 240 | Ω |
| ESD protection (HBM) | >2000 | V | |||
| ESD protection (CDM) | >1000 | V |
Key Features
- 8-channel analog multiplexer/demultiplexer with three digital select inputs (S0 to S2) and an active-LOW enable input (E).
- Injection-current effect control, allowing signals at disabled analog input channels to exceed the supply voltage without affecting the enabled channel.
- Low ON-state resistance: varies from 59 Ω at VCC = 6.0 V to 400 Ω at VCC = 2.0 V.
- Wide supply voltage range from 2.0 V to 6.0 V.
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V.
- Latch-up performance exceeds 100 mA per JESD 78 Class II level A.
- Automotive product qualification in accordance with AEC-Q100 (Grade 1).
- Operating temperature range from -40 °C to +125 °C.
Applications
The 74HCT4851PW-Q100 is particularly suited for automotive applications due to its robust features and compliance with automotive standards. It is also applicable in various other fields where high reliability and low ON-state resistance are required, such as:
- Automotive systems: for signal routing and switching in harsh environments.
- Industrial control systems: for reliable signal multiplexing and demultiplexing.
- Medical devices: where precise signal handling and low noise are critical.
- Aerospace and defense: for high-reliability signal switching applications.
Q & A
- What is the primary function of the 74HCT4851PW-Q100?
The primary function is to act as an 8-channel analog multiplexer/demultiplexer.
- What is the significance of injection-current effect control in this device?
This feature allows signals at disabled analog input channels to exceed the supply voltage without affecting the signal of the enabled analog channel.
- What is the operating temperature range of the 74HCT4851PW-Q100?
The operating temperature range is from -40 °C to +125 °C.
- What are the ESD protection levels for this device?
ESD protection exceeds 2000 V for HBM and 1000 V for CDM.
- What is the typical ON-state resistance at different supply voltages?
The ON-state resistance varies from 59 Ω at VCC = 6.0 V to 400 Ω at VCC = 2.0 V.
- Is the 74HCT4851PW-Q100 qualified for automotive applications?
Yes, it is qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1).
- What is the latch-up performance of this device?
The latch-up performance exceeds 100 mA per JESD 78 Class II level A.
- What is the package type for the 74HCT4851PW-Q100?
The device is available in a TSSOP16 package.
- What are some common applications for this device?
Common applications include automotive systems, industrial control systems, medical devices, and aerospace and defense systems.
- What is the supply voltage range for the 74HCT4851PW-Q100?
The supply voltage range is from 2.0 V to 6.0 V.
