AD8403ARU100-REEL

Product Overview

Category

The AD8403ARU100-REEL belongs to the category of integrated circuit (IC) devices.

Use

This product is primarily used for digital potentiometer applications.

Characteristics

• The AD8403ARU100-REEL is a 256-position, digitally controlled variable resistor.
• It offers a resistance range of 0 to 100 kilohms.
• This IC operates on a single power supply voltage ranging from 2.7V to 5.5V.
• It features a low temperature coefficient and excellent long-term stability.
• The device provides three independent channels with non-volatile memory storage.

Package

The AD8403ARU100-REEL is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of this product lies in its ability to replace mechanical potentiometers with a digitally controlled solution, offering greater precision and flexibility.

Packaging/Quantity

The AD8403ARU100-REEL is typically packaged in reels containing 250 units.

Specifications

• Resistance Range: 0 to 100 kilohms
• Number of Channels: 3
• Supply Voltage: 2.7V to 5.5V
• Temperature Coefficient: Low
• Package Type: SOIC-16

Detailed Pin Configuration

The AD8403ARU100-REEL has 16 pins arranged as follows:

1. VDD - Power supply voltage
2. VSS - Ground reference
3. SDO - Serial data output
4. SDI - Serial data input
5. SCLK - Serial clock input
6. CS - Chip select input
7. HIZ - High impedance output
8. A1 - Channel A terminal 1
9. W1 - Channel A wiper terminal
10. B1 - Channel A terminal 2
11. A2 - Channel B terminal 1
12. W2 - Channel B wiper terminal
13. B2 - Channel B terminal 2
14. A3 - Channel C terminal 1
15. W3 - Channel C wiper terminal
16. B3 - Channel C terminal 2

Functional Features

• Digital control of resistance values.
• Non-volatile memory storage for each channel.
• Serial interface for easy integration with microcontrollers.
• High resolution with 256 positions.
• Low power consumption.

Advantages and Disadvantages

Advantages

• Precise and accurate resistance control.
• Eliminates the need for mechanical potentiometers.
• Non-volatile memory ensures settings are retained even after power loss.
• Compact size and easy integration into electronic systems.
• High resolution allows for fine adjustments.

Disadvantages

• Limited resistance range compared to some other digital potentiometer ICs.
• Requires a microcontroller or external control circuitry for operation.

Working Principles

The AD8403ARU100-REEL operates by digitally controlling the resistance value across its three channels. It utilizes non-volatile memory to store the resistance settings, ensuring that they are retained even when power is removed. The device communicates with an external microcontroller or control circuitry through a serial interface, allowing for precise and flexible resistance adjustments.

Detailed Application Field Plans

The AD8403ARU100-REEL finds applications in various fields, including:

1. Audio equipment: Used for volume control and tone adjustment in amplifiers, mixers, and audio processors.
2. Industrial automation: Enables precise control of parameters such as motor speed, position, and voltage regulation.
3. Test and measurement instruments: Provides programmable resistance for calibration and signal conditioning purposes.
4. Medical devices: Used in equipment requiring accurate resistance control, such as patient monitoring systems and diagnostic instruments.

Detailed and Complete Alternative Models

1. AD8400ARZ10 - 10 kilohm digital potentiometer with a single channel.
2. AD8402ARUZ50 - Dual-channel digital potentiometer with a resistance range of 0 to 50 kilohms.
3. AD8404ARUZ100 - Four-channel digital potentiometer with a resistance range of 0 to 100 kilohms.
4. AD5262BRUZ20 - Dual-channel digital potentiometer with an integrated EEPROM for non-volatile memory storage.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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