X9261US24ZT1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Non-volatile, 256-position, I2C interface
• Package: 24-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Provides digital control of resistance in electronic circuits
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Resolution: 8-bit (256 steps)
• Supply Voltage: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• Interface: I2C (Inter-Integrated Circuit)
• Wiper Current: ±3mA
• End-to-End Resistance: 10kΩ
• Standby Current: 1µA (max)

Detailed Pin Configuration

The X9261US24ZT1 has a total of 24 pins, which are assigned as follows:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. SDA: Serial Data Line for I2C communication
4. SCL: Serial Clock Line for I2C communication
5. WP: Write Protect pin for protecting non-volatile memory
6. A0-A2: Address selection pins for I2C communication 7-24. R0-R17: Resistor terminals for digital potentiometer

Functional Features

• Non-volatile memory: Retains wiper position during power-off
• I2C interface: Allows easy digital control of resistance
• 256-position resolution: Provides fine-grained adjustment
• Low standby current: Ensures minimal power consumption
• Write protection: Prevents accidental changes to settings

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures settings are retained - I2C interface allows for easy integration into digital systems - Fine-grained resolution enables precise resistance adjustment - Low standby current minimizes power consumption

Disadvantages: - Limited to 10kΩ end-to-end resistance - Requires external components for proper operation - Sensitive to electrostatic discharge (ESD)

Working Principles

The X9261US24ZT1 is a digital potentiometer that replaces traditional mechanical potentiometers. It consists of a series of resistors connected in a ladder configuration. The wiper terminal, controlled by the digital interface, taps onto this ladder, effectively changing the resistance between the wiper and one of the resistor terminals.

When a control signal is received through the I2C interface, the digital potentiometer adjusts the wiper position accordingly, changing the effective resistance. The non-volatile memory ensures that the wiper position is retained even when power is removed.

Detailed Application Field Plans

The X9261US24ZT1 finds applications in various electronic systems where precise resistance adjustment is required. Some potential application fields include:

1. Audio Systems: Allows volume control and tone adjustment.
2. Industrial Automation: Provides programmable resistance for calibration purposes.
3. Test and Measurement Equipment: Enables accurate signal conditioning.
4. Automotive Electronics: Facilitates control of various parameters in automotive systems.
5. Consumer Electronics: Offers digital control of brightness, contrast, and other settings.

Detailed and Complete Alternative Models

1. X9313WSIZ-2.7: 32-position digital potentiometer with SPI interface.
2. MCP4017T-503E/LT: 128-position digital potentiometer with I2C interface.
3. AD8403ARUZ1: Quad-channel digital potentiometer with 256 positions and I2C interface.
4. MAX5486EUD+: 10kΩ digital potentiometer with 256 positions and SPI interface.
5. CAT5114YI-50-GT3: Single-channel digital potentiometer with 100 positions and I2C interface.

These alternative models offer similar functionality to the X9261US24ZT1, providing options for different requirements and system designs.

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