X9313WMI

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Programmable, Non-volatile, 10-bit Resolution
• Package: SOIC-8
• Essence: X9313WMI is a digital potentiometer IC that allows for programmable resistance adjustments. It provides a non-volatile solution with a 10-bit resolution, making it suitable for various applications.
• Packaging/Quantity: The X9313WMI is available in a standard SOIC-8 package and is typically sold in reels of 2500 units.

Specifications

• Resolution: 10 bits
• Resistance Range: 0 to 10kΩ
• Number of Channels: Single
• Operating Voltage: 2.7V to 5.5V
• Interface: Serial (SPI)
• Temperature Range: -40°C to +85°C
• Non-volatile Memory: Yes
• Endurance: 100,000 write cycles
• Supply Current: 1µA (Standby), 3mA (Active)

Detailed Pin Configuration

The X9313WMI features an 8-pin configuration:

1. VCC: Power supply voltage input
2. CS: Chip select input for SPI communication
3. SCLK: Serial clock input for SPI communication
4. SI: Serial data input for SPI communication
5. SO: Serial data output for SPI communication
6. WP: Write protect input for disabling write operations
7. H: Terminal connected to the high end of the resistor
8. L: Terminal connected to the low end of the resistor

Functional Features

• Programmable Resistance: The X9313WMI allows users to digitally program the resistance value, providing flexibility in various applications.
• Non-volatile Memory: The IC retains the programmed resistance value even when power is disconnected, ensuring persistence across power cycles.
• SPI Interface: The serial peripheral interface (SPI) allows for easy communication and control of the digital potentiometer.
• Wide Operating Voltage Range: With an operating voltage range of 2.7V to 5.5V, the X9313WMI can be used in a variety of low-power and battery-operated devices.

Advantages and Disadvantages

Advantages

• Programmable resistance allows for precise adjustments in various applications.
• Non-volatile memory ensures persistence of resistance values.
• SPI interface enables easy integration and control.
• Wide operating voltage range provides versatility.

Disadvantages

• Limited to single-channel operation.
• Write protect input may require additional circuitry for protection.

Working Principles

The X9313WMI utilizes a combination of resistive ladder network and CMOS switches to achieve programmable resistance. The digital potentiometer consists of a series of resistors connected in a ladder configuration. By selectively enabling or disabling the CMOS switches, the effective resistance between the H and L terminals can be adjusted digitally.

Detailed Application Field Plans

The X9313WMI finds applications in various fields, including:

1. Audio Equipment: Volume control, tone adjustment
2. Industrial Automation: Calibration, signal conditioning
3. Test and Measurement: Programmable load simulation, sensor calibration
4. Consumer Electronics: Display brightness control, user interface settings

Detailed and Complete Alternative Models

1. X9C103S: Single-channel digital potentiometer with 100Ω to 10kΩ resistance range.
2. MCP4131: Single-channel digital potentiometer with 128 taps and SPI interface.
3. AD8400: Single-channel digital potentiometer with 256 taps and I2C interface.

These alternative models offer similar functionality and can be considered as alternatives to the X9313WMI.

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