MAX5484ETE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Low-power, 256-tap, non-volatile, I2C interface
• Package: 16-pin TQFN (Thin Quad Flat No-Lead)
• Essence: The MAX5484ETE+T is a digital potentiometer IC that provides a programmable resistance value. It is designed to replace mechanical potentiometers in various applications.
• Packaging/Quantity: The MAX5484ETE+T is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Resolution: 8 bits (256 taps)
• Resistance Range: 10kΩ
• Supply Voltage: 2.7V to 5.5V
• Interface: I2C-compatible
• Operating Temperature Range: -40°C to +85°C
• Power Consumption: 1µA (standby), 200µA (active)

Pin Configuration

The MAX5484ETE+T has a 16-pin TQFN package with the following pin configuration:

1. VDD: Supply voltage input
2. SDA: I2C data line
3. SCL: I2C clock line
4. GND: Ground
5. A0: Address selection bit 0
6. A1: Address selection bit 1
7. WP: Write protect input
8. HIZ: High impedance output
9. B0: Terminal B connection
10. W: Wiper terminal
11. A: Terminal A connection
12. VSS: Negative supply voltage input
13. NC: No connect
14. NC: No connect
15. NC: No connect
16. NC: No connect

Functional Features

• Non-volatile memory: The MAX5484ETE+T retains its resistance setting even when power is removed.
• I2C interface: Allows for easy digital control and programming of the potentiometer.
• Low-power consumption: Ideal for battery-powered applications.
• 256-tap resolution: Provides fine-grained adjustment of resistance.

Advantages and Disadvantages

Advantages: - Replaces mechanical potentiometers, eliminating wear and tear issues. - Digital control allows for precise and repeatable resistance settings. - Non-volatile memory ensures resistance settings are retained during power cycles.

Disadvantages: - Limited resistance range (10kΩ). - Requires I2C interface for control, which may add complexity to the system design.

Working Principles

The MAX5484ETE+T utilizes a combination of resistive elements and switches to create a programmable resistance value. The resistance can be adjusted digitally using the I2C interface. The non-volatile memory ensures that the resistance setting is retained even when power is removed.

Detailed Application Field Plans

The MAX5484ETE+T can be used in various applications where a traditional potentiometer would be used. Some potential application fields include:

1. Audio equipment: Volume control, tone adjustment.
2. Industrial automation: Calibration, feedback control.
3. Test and measurement instruments: Fine adjustment of signal levels.
4. Consumer electronics: Display brightness control, user interface settings.

Detailed and Complete Alternative Models

1. MCP401X: Microchip Technology offers a series of digital potentiometers with similar specifications and features.
2. AD525X: Analog Devices provides a range of digital potentiometers suitable for various applications.
3. DS180X: Maxim Integrated offers alternative digital potentiometer ICs with different resolution and resistance range options.

These alternative models can be considered based on specific application requirements and design constraints.

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