X9221AYS

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics:
  • X9221AYS is a high-performance digital potentiometer designed for various applications.
  • It provides precise resistance adjustment in electronic circuits.
  • The device operates with low power consumption and offers excellent reliability.
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: X9221AYS is an essential component in electronic systems that require adjustable resistance.
• Packaging/Quantity: Available in tape and reel packaging, with 250 units per reel.

Specifications

• Resolution: 8-bit
• Resistance Range: 0 to 100 kilohms
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial Peripheral Interface (SPI)
• Number of Channels: Single channel

Detailed Pin Configuration

The X9221AYS digital potentiometer has the following pin configuration:

1. VCC: Supply voltage input
2. GND: Ground reference
3. CS: Chip select input
4. SCLK: Serial clock input
5. SDI: Serial data input
6. SDO: Serial data output
7. H: Terminal A of the potentiometer
8. W: Wiper terminal of the potentiometer
9. L: Terminal B of the potentiometer

Functional Features

• X9221AYS offers non-volatile memory storage for wiper position, allowing it to retain settings even when powered off.
• The device supports incremental changes in resistance, providing fine-grained adjustment capabilities.
• It features a wide operating voltage range, making it compatible with various power supply configurations.
• X9221AYS has a high endurance, with a minimum of 100,000 write cycles.

Advantages and Disadvantages

Advantages: - Precise resistance adjustment - Low power consumption - Non-volatile memory storage - Wide operating voltage range - High endurance

Disadvantages: - Limited resolution (8-bit)

Working Principles

X9221AYS operates by digitally controlling the resistance between terminals A and B. The wiper terminal W moves along the resistive element, changing the effective resistance. This adjustment is achieved through the SPI interface, which communicates with the device to set the desired resistance value.

Detailed Application Field Plans

X9221AYS finds applications in various electronic systems, including but not limited to: - Audio equipment - Instrumentation - Industrial control systems - Communication devices - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to X9221AYS include: - X9312WP: 32-tap digital potentiometer with higher resolution (10-bit) - MCP4017T: Single-channel digital potentiometer with lower power consumption - AD8403ARZ1: Quad-channel digital potentiometer with serial interface

These alternatives offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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