X9418YV24I

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics:
  • X9418YV24I is a high-performance digital potentiometer designed for various electronic applications.
  • It provides precise resistance adjustment and digital control capabilities.
  • The IC offers excellent linearity, low temperature coefficient, and high resolution.
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: X9418YV24I is an essential component in electronic circuits that require adjustable resistance.
• Packaging/Quantity: Available in tape and reel packaging with 250 units per reel.

Specifications

• Resolution: 256 taps
• Resistance Range: 0 to 100 kilohms
• Supply Voltage: 2.7V to 5.5V
• Interface: Serial Peripheral Interface (SPI)
• Operating Temperature Range: -40°C to +85°C
• Package Dimensions: SOIC-24

Detailed Pin Configuration

1. VCC - Power supply voltage
2. GND - Ground reference
3. CS - Chip select input
4. SCK - Serial clock input
5. SI - Serial data input
6. SO - Serial data output
7. WP - Write protect input
8. HIZ - High impedance output
9. A0 - Address bit 0
10. A1 - Address bit 1
11. A2 - Address bit 2
12. RST - Reset input
13. VSS - Negative power supply voltage
14. VL - Logic supply voltage
15. VRH - High terminal of the resistor string
16. VRW - Wiper terminal of the resistor string
17. VRL - Low terminal of the resistor string
18. RH - Terminal of the resistor string connected to VRH
19. RW - Terminal of the resistor string connected to VRW
20. RL - Terminal of the resistor string connected to VRL
21. RS - Resistor string tap selection input
22. RDY/BSY - Ready/busy output
23. SDO - Serial data output
24. SDI - Serial data input

Functional Features

• X9418YV24I offers precise digital control over resistance values.
• It provides a wide range of resistance adjustment from 0 to 100 kilohms.
• The IC has a high resolution of 256 taps, allowing for fine-grained adjustments.
• It exhibits excellent linearity and low temperature coefficient, ensuring accurate resistance settings.
• The device operates on a low supply voltage range of 2.7V to 5.5V, making it suitable for various electronic systems.
• X9418YV24I utilizes a serial peripheral interface (SPI) for easy integration into digital circuits.
• It features a write protect input (WP) for added security and protection against accidental changes.

Advantages and Disadvantages

Advantages: - Precise resistance adjustment with high resolution - Excellent linearity and low temperature coefficient - Wide operating temperature range - Low power consumption - Easy integration with digital circuits

Disadvantages: - Limited resistance range compared to some other digital potentiometers - Requires an external microcontroller or SPI interface for control

Working Principles

X9418YV24I is based on the principle of a digital potentiometer. It consists of a resistor network and a wiper terminal that can be digitally adjusted. By controlling the position of the wiper, the effective resistance between the wiper terminal and the ends of the resistor network can be varied. This allows precise resistance adjustment in electronic circuits.

The IC utilizes a serial peripheral interface (SPI) to receive digital control signals from an external microcontroller or digital circuit. The received data determines the position of the wiper and, consequently, the resistance value. The device operates within the specified voltage range and provides accurate resistance settings with high linearity and low temperature coefficient.

Detailed Application Field Plans

X9418YV24I finds applications in various electronic systems where adjustable resistance is required. Some potential application fields include:

1. Audio Systems: Used for volume control, tone adjustment, and equalization.
2. Instrumentation: Provides calibration and fine-tuning capabilities in measurement devices.
3. Industrial Control: Enables precise control of parameters such as motor speed, light intensity, and temperature.
4. Communication Systems: Used for signal conditioning, impedance matching, and gain control.
5. Automotive Electronics: Allows adjustment of parameters in automotive systems like climate control and audio interfaces.

Detailed and Complete Alternative Models

1. X9418YV24IZ-2.5 - Similar to X9418YV24I but operates at a supply voltage of 2.5