AD5247BKS5-R2

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Low power, 256-position resolution, I2C interface
• Package: SOT-23-5
• Essence: Adjustable resistor with digital control
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Resolution: 8-bit (256 positions)
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Resistance Tolerance: ±20%
• End-to-End Resistance Range: 10kΩ, 50kΩ, 100kΩ
• I2C Interface: Supports standard, fast, and high-speed modes

Detailed Pin Configuration

The AD5247BKS5-R2 has a total of five pins:

1. VDD: Power supply voltage input
2. GND: Ground reference
3. SDA: Serial data input/output for I2C communication
4. SCL: Serial clock input for I2C communication
5. A0: Address selection pin (used to set the device's I2C address)

Functional Features

• Digital potentiometer with non-volatile memory
• Allows adjustment of resistance through digital control
• Offers 256 discrete resistance steps
• Low power consumption, suitable for battery-powered applications
• I2C interface enables easy integration into digital systems
• Non-volatile memory retains settings even when power is disconnected

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows flexibility in various applications - Small package size enables space-saving designs - Non-volatile memory ensures settings are retained during power cycles - High resolution provides precise resistance adjustments

Disadvantages: - Limited resistance tolerance of ±20% - Only available in SOT-23-5 package, limiting mounting options - I2C interface may require additional circuitry for compatibility with other communication protocols

Working Principles

The AD5247BKS5-R2 is a digital potentiometer that replaces traditional mechanical potentiometers. It consists of a series of resistive elements connected between the VDD and GND pins. The wiper terminal connects to the A0 pin, allowing the resistance value to be adjusted digitally.

When a specific resistance value is desired, the control signals are sent through the I2C interface to set the wiper position. The non-volatile memory ensures that the resistance setting is retained even when power is disconnected.

Detailed Application Field Plans

The AD5247BKS5-R2 finds applications in various fields, including:

1. Audio Systems: Used for volume control and tone adjustment.
2. Industrial Control: Provides adjustable resistance for calibration and fine-tuning.
3. Test and Measurement Equipment: Enables precise resistance adjustments for accurate measurements.
4. Consumer Electronics: Integrated into devices such as TVs, gaming consoles, and smartphones for user-controlled settings.
5. Medical Devices: Utilized in equipment requiring adjustable resistance, such as patient monitoring systems.

Detailed and Complete Alternative Models

1. AD5246: 10kΩ, 50kΩ, and 100kΩ resistance options, 256-position resolution, I2C interface.
2. AD5248: Higher resolution (10-bit), wider resistance range, and additional features like shutdown mode.
3. MCP401X: Similar functionality, available in different package options, lower cost.
4. MAX548X: Higher resolution (14-bit), SPI interface, wider temperature range.

These alternative models offer similar functionalities and can be considered based on specific requirements and constraints.

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