SN74HC4851N

Product Overview

• Category: Integrated Circuit
• Use: Analog Multiplexer/Demultiplexer
• Characteristics: High-Speed CMOS Logic, 8-Channel, Single-Ended or Differential Input
• Package: PDIP (Plastic Dual-In-Line Package)
• Essence: Analog Switches/Multiplexers/Demultiplexers
• Packaging/Quantity: Tube/40 pieces per tube

Specifications

• Supply Voltage Range: 2V to 6V
• On-State Resistance: 70Ω (Typical)
• On-State Resistance Flatness: 5Ω (Typical)
• Low Power Consumption: 80μA (Maximum)
• Wide Operating Temperature Range: -40°C to +85°C
• Input Signal Range: ±10V (Maximum)

Detailed Pin Configuration

The SN74HC4851N has a total of 16 pins. The pin configuration is as follows:

__ __ A0 |1 \__/ 16| VCC A1 |2 15| S0 A2 |3 14| S1 A3 |4 13| S2 A4 |5 SN 12| S3 A5 |6 74 11| INH A6 |7 HC 10| COM A7 |8 4851 9| GND ----------

Functional Features

• 8-channel analog multiplexer/demultiplexer
• Single-ended or differential input capability
• Low power consumption
• Wide operating temperature range
• Fast switching speed
• Break-before-make switching action
• TTL-compatible control inputs

Advantages and Disadvantages

Advantages

• Versatile multiplexer/demultiplexer solution
• High-speed CMOS logic for fast switching
• Wide operating temperature range allows for use in various environments
• Low power consumption for energy efficiency
• Break-before-make switching action ensures signal integrity

Disadvantages

• Limited input signal range (±10V maximum)
• Only available in PDIP package, limiting space-constrained applications

Working Principles

The SN74HC4851N is an analog multiplexer/demultiplexer that allows the selection of one of eight input channels to be routed to a single output. It operates based on the control signals provided to the select inputs (S0-S3). The selected channel's input is connected to the common terminal (COM) and can be either single-ended or differential.

The device utilizes high-speed CMOS logic, enabling fast switching between channels. It features break-before-make switching action, ensuring that there is no overlap or short-circuiting during the transition between channels.

Detailed Application Field Plans

The SN74HC4851N finds applications in various fields, including:

1. Audio/Video Switching: Used in audio/video equipment to select different input sources.
2. Data Acquisition Systems: Enables multiplexing of analog signals in data acquisition systems.
3. Communication Systems: Used for signal routing and switching in communication systems.
4. Industrial Automation: Allows for channel selection in industrial automation processes.
5. Test and Measurement Equipment: Utilized in test and measurement setups for signal routing.

Detailed and Complete Alternative Models

1. CD4051B: 8-channel analog multiplexer/demultiplexer with similar characteristics.
2. ADG508A: Precision CMOS analog multiplexer/demultiplexer with 8 channels.
3. MAX4617: Low-voltage, single-supply analog multiplexer/demultiplexer with 8 channels.

These alternative models offer similar functionality and can be considered as alternatives to the SN74HC4851N.

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