AD8403ARUZ1-REEL

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Low power, 8-bit resolution, 4-channel, I2C interface
• Package: 16-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: The AD8403ARUZ1-REEL is a digital potentiometer IC used for electronic circuit control and adjustment.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Resolution: 8 bits
• Number of Channels: 4
• Interface: I2C (Inter-Integrated Circuit)
• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Resistance Tolerance: ±20%
• End-to-End Resistance Range: 10kΩ, 50kΩ, 100kΩ

Detailed Pin Configuration

The AD8403ARUZ1-REEL has a total of 16 pins, which are assigned as follows:

1. VDD: Positive supply voltage
2. SDA: Serial data input/output pin for I2C communication
3. SCL: Serial clock input pin for I2C communication
4. GND: Ground reference
5. A1: Address bit 1 for device selection
6. A0: Address bit 0 for device selection
7. CS: Chip select input for channel selection
8. H/L: High/Low terminal of the resistor network for channel 1
9. W: Wiper terminal of the resistor network for channel 1
10. H/L: High/Low terminal of the resistor network for channel 2
11. W: Wiper terminal of the resistor network for channel 2
12. H/L: High/Low terminal of the resistor network for channel 3
13. W: Wiper terminal of the resistor network for channel 3
14. H/L: High/Low terminal of the resistor network for channel 4
15. W: Wiper terminal of the resistor network for channel 4
16. VSS: Negative supply voltage

Functional Features

• Digital control: Allows precise adjustment of resistance values using digital signals.
• Non-volatile memory: Retains the wiper position even when power is removed.
• Low power consumption: Operates with low power requirements, making it suitable for battery-powered devices.
• I2C interface: Enables easy integration into digital systems and microcontrollers.
• Multiple channels: Provides four independent potentiometers in a single package.

Advantages and Disadvantages

Advantages

• Precise and accurate resistance adjustment.
• Compact size and integrated design save board space.
• Non-volatile memory ensures settings are retained.
• Easy integration with digital systems.

Disadvantages

• Limited resolution (8 bits) compared to higher-end digital potentiometers.
• Resistance tolerance of ±20% may not be suitable for applications requiring high precision.

Working Principles

The AD8403ARUZ1-REEL operates by digitally controlling the resistance value between its high and low terminals. The wiper terminal can be adjusted through the I2C interface, allowing the user to set the desired resistance value. The non-volatile memory ensures that the wiper position is retained even when power is removed.

Detailed Application Field Plans

The AD8403ARUZ1-REEL finds applications in various fields, including: 1. Audio equipment: Volume control, tone adjustment, and equalization. 2. Industrial automation: Process control, motor speed control, and calibration. 3. Test and measurement: Programmable resistance loads, calibration equipment. 4. Communication systems: Signal conditioning, gain control, and filtering.

Detailed and Complete Alternative Models

1. AD8400ARZ-10: 8-bit digital potentiometer with a single channel.
2. AD8402ARUZ-10: 8-bit digital potentiometer with dual channels.
3. AD8404ARUZ-10: 8-bit digital potentiometer with quad channels.

These alternative models offer similar functionality but differ in the number of channels available.

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