AD5258BRMZ100

Product Overview

Category

AD5258BRMZ100 belongs to the category of digital potentiometers.

Use

It is commonly used in electronic circuits to provide variable resistance for controlling various parameters such as volume, brightness, and gain.

Characteristics

• Digital control: AD5258BRMZ100 can be controlled digitally using a microcontroller or other digital interface.
• Non-volatile memory: It retains its settings even when power is removed, allowing for easy recall of previous configurations.
• High resolution: It offers high-resolution adjustment, enabling precise control over the desired parameter.
• Low power consumption: AD5258BRMZ100 operates with low power consumption, making it suitable for battery-powered devices.

Package

AD5258BRMZ100 is available in a small form factor package, which is ideal for space-constrained applications.

Essence

The essence of AD5258BRMZ100 lies in its ability to replace traditional mechanical potentiometers with a more reliable and versatile digital alternative.

Packaging/Quantity

AD5258BRMZ100 is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Resolution: 256 steps
• Resistance Range: 10kΩ
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Interface: I2C-compatible

Detailed Pin Configuration

1. VDD: Power supply voltage input
2. SDA: Serial data input/output for I2C communication
3. SCL: Serial clock input for I2C communication
4. GND: Ground connection
5. A0: Address selection bit 0
6. A1: Address selection bit 1
7. WP: Write protect pin
8. VSS: Negative power supply voltage input
9. RH: Terminal for the high end of the resistor
10. RL: Terminal for the low end of the resistor
11. VLOGIC: Logic-level power supply voltage input

Functional Features

• Digital control allows for precise adjustment of resistance.
• Non-volatile memory ensures that settings are retained even after power loss.
• I2C interface enables easy integration with microcontrollers and other digital devices.
• Write protect pin provides additional security by preventing accidental changes to the settings.

Advantages and Disadvantages

Advantages

• Precise and repeatable adjustment of resistance.
• Compact size suitable for space-constrained applications.
• Low power consumption extends battery life.
• Non-volatile memory eliminates the need for recalibration.

Disadvantages

• Limited resistance range compared to traditional potentiometers.
• Requires digital control interface, which may add complexity to the circuit design.

Working Principles

AD5258BRMZ100 utilizes a combination of digital-to-analog converters (DACs) and switches to create a variable resistance. The digital control interface sends commands to the internal DACs, which adjust the resistance value accordingly. The resulting resistance is then applied between the RH and RL terminals, allowing for precise control over the desired parameter.

Detailed Application Field Plans

AD5258BRMZ100 finds applications in various fields, including but not limited to: - Audio equipment: Volume control in amplifiers, mixers, and audio systems. - Lighting systems: Brightness control in LED lighting fixtures. - Industrial automation: Adjustment of parameters in industrial control systems. - Test and measurement: Calibration and fine-tuning of test equipment.

Detailed and Complete Alternative Models

1. AD5241BRZ10 - 10kΩ digital potentiometer with 256 steps resolution.
2. MCP4017T-103E/LT - 10kΩ digital potentiometer with 257 steps resolution.
3. MAX5481EUD+ - 10kΩ digital potentiometer with 1024 steps resolution.

These alternative models offer similar functionality and can be considered as replacements for AD5258BRMZ100 in various applications.

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