X9318WS8IT1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Non-volatile, 100 Taps, 10kΩ Resistance, 8-bit Resolution
• Package: WS8 (8-pin SOIC)
• Essence: Programmable resistor with digital control
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Resistance Range: 0Ω to 10kΩ
• Resolution: 8 bits (256 steps)
• End-to-End Resistance Tolerance: ±20%
• Temperature Coefficient: ±300ppm/°C
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Standby Current: 1µA (max)
• Wiper Current: 3mA (max)

Detailed Pin Configuration

The X9318WS8IT1 has the following pin configuration:

1. VCC: Supply voltage input
2. H: High terminal of the resistor element
3. W: Wiper terminal of the resistor element
4. L: Low terminal of the resistor element
5. CS: Chip select input
6. U/D: Up/Down control input
7. NC: No connection
8. GND: Ground reference

Functional Features

• Non-volatile memory: The X9318WS8IT1 retains its settings even when power is removed.
• Digital control: The potentiometer can be programmed using a microcontroller or other digital interface.
• Wide resistance range: The device offers a resistance range from 0Ω to 10kΩ.
• Fine resolution: With 8-bit resolution, it provides 256 discrete steps for precise adjustment.
• Low power consumption: The standby current is only 1µA, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures settings are retained. - Digital control allows for precise adjustment. - Wide resistance range covers various applications. - Low power consumption extends battery life.

Disadvantages: - Limited to 8-bit resolution, which may not be sufficient for some high-precision applications. - End-to-end resistance tolerance of ±20% may introduce inaccuracies in certain scenarios.

Working Principles

The X9318WS8IT1 is based on the concept of a digital potentiometer. It consists of a resistor network with three terminals: high (H), wiper (W), and low (L). By applying appropriate voltage levels to the control pins, the wiper position can be adjusted digitally, effectively changing the resistance between the H and W terminals.

The device utilizes non-volatile memory to store the wiper position, allowing it to retain its settings even when power is removed. This feature makes it ideal for applications where the potentiometer's position needs to be preserved across power cycles.

Detailed Application Field Plans

The X9318WS8IT1 finds applications in various fields, including:

1. Audio Equipment: Volume control, tone adjustment, and equalization circuits.
2. Industrial Automation: Calibration and fine-tuning of sensors, actuators, and control systems.
3. Test and Measurement Instruments: Precise resistance adjustment for signal conditioning and calibration purposes.
4. Consumer Electronics: Brightness control, contrast adjustment, and user interface settings in displays and monitors.
5. Automotive Electronics: Climate control, audio systems, and dashboard controls.

Detailed and Complete Alternative Models

1. X9C103S: 10kΩ, 100 Taps, 3-Wire Interface, SOIC-8 package.
2. MCP4017T: 10kΩ, 129 Taps, SPI Interface, SOT-23 package.
3. AD8403ARZ1: 10kΩ, 256 Taps, I2C Interface, SOIC-16 package.

These alternative models offer similar functionality and can be considered as alternatives to the X9318WS8IT1 based on specific application requirements.

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