MAX5480AEEE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Low-power, 256-tap, nonvolatile memory, I2C interface
• Package: 16-pin QSOP (Quarter Small Outline Package)
• Essence: Provides a digitally controlled variable resistor for electronic circuits
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Resolution: 8-bit (256 steps)
• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Resistance Tolerance: ±20%
• End-to-End Resistance Range: 10kΩ
• Standby Current: 1µA (typical)
• I2C Bus Speed: Up to 400kHz

Pin Configuration

The MAX5480AEEE+T has the following pin configuration:

```

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| | --| VCC SDA |-- --| GND SCL |-- --| A0 WP |-- --| A1 HIZ |-- --| A2 INC |-- --| B0 U/D |-- --| B1 CS |-- --| B2 RDY |-- --| B3 RST |-- --| B4 VSS |-- --| B5 VDD |-- --| W NC |-- --| X NC |-- --| Y NC |-- --| Z NC |-- |___________| ```

Functional Features

• Nonvolatile Memory: The MAX5480AEEE+T retains its settings even when power is removed.
• I2C Interface: Allows for easy digital control and communication with other devices.
• Low Power Consumption: Consumes only 1µA in standby mode, making it suitable for battery-powered applications.
• Wide Operating Voltage Range: Can be powered by a range of 2.7V to 5.5V, providing flexibility in various circuit designs.

Advantages

• Digital Control: Provides precise and repeatable resistance adjustments through digital signals.
• Nonvolatile Memory: Retains settings even after power loss, eliminating the need for recalibration.
• Small Package Size: The QSOP package allows for space-efficient integration into compact electronic systems.
• Low Power Consumption: Ideal for energy-efficient applications and extends battery life.

Disadvantages

• Limited Resolution: With an 8-bit resolution, the MAX5480AEEE+T may not offer fine-grained adjustments required in some high-precision applications.
• Resistance Tolerance: The ±20% tolerance may not meet the requirements of certain precision circuits.

Working Principles

The MAX5480AEEE+T is based on the principle of a digital potentiometer. It consists of a series of resistive elements connected in a ladder-like configuration. By digitally controlling the taps along this ladder, the effective resistance between two terminals can be adjusted. The I2C interface enables communication with a microcontroller or other digital devices, allowing precise resistance settings.

Detailed Application Field Plans

The MAX5480AEEE+T finds applications in various fields, including:

1. Audio Systems: Used for volume control and tone adjustment in audio amplifiers and mixers.
2. Industrial Automation: Enables precise calibration and control of analog circuits in industrial equipment.
3. Test and Measurement Instruments: Provides programmable resistance for testing and calibration purposes.
4. Medical Devices: Used in medical equipment for precise control of electrical signals.
5. Automotive Electronics: Suitable for applications such as climate control systems and motor control.

Detailed and Complete Alternative Models

1. MAX5481AEEE+T: Similar to the MAX5480AEEE+T but with a 10kΩ end-to-end resistance range.
2. MAX5482AEEE+T: Offers a higher resolution of 10-bit (1024 steps) for more precise adjustments.
3. MAX5483AEEE+T: Provides a wider supply voltage range of 1.8V to 5.5V, allowing compatibility with lower voltage systems.

These alternative models offer different specifications and features to cater to specific application requirements.

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