X9315TPI

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Non-volatile, 32 Taps, 100kΩ Resistance Range
• Package: 8-pin PDIP (Plastic Dual In-line Package)
• Essence: Provides adjustable resistance in electronic circuits
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Resistance Range: 100kΩ
• Number of Taps: 32
• End-to-End Resistance Tolerance: ±20%
• Operating Voltage Range: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• Interface: Serial (SPI) Communication
• Non-volatile Memory: Stores wiper position during power-off

Detailed Pin Configuration

1. VCC: Power Supply Voltage
2. CS: Chip Select Input
3. SCK: Serial Clock Input
4. SI: Serial Data Input
5. SO: Serial Data Output
6. WP: Write Protect Input
7. H: High Terminal of Potentiometer
8. L: Low Terminal of Potentiometer

Functional Features

• Adjustable resistance for fine-tuning circuit parameters
• Non-volatile memory retains wiper position during power cycles
• Serial communication interface for easy integration with microcontrollers
• Wide operating voltage range allows compatibility with various systems
• Compact package size for space-constrained applications

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures settings are retained during power-off - Serial communication interface simplifies control and integration - Wide operating voltage range provides flexibility in system design - Compact package size allows for use in space-constrained applications

Disadvantages: - Limited resistance range may not be suitable for all applications - End-to-end resistance tolerance of ±20% may impact precision requirements

Working Principles

The X9315TPI is a digital potentiometer that operates based on the principle of resistive voltage division. It consists of a series of resistive elements connected in a ladder-like configuration. The wiper terminal, controlled by the digital interface, taps into this ladder and provides an adjustable resistance value between the high and low terminals.

When a specific resistance value is set through the serial communication interface, the wiper position adjusts accordingly, changing the effective resistance seen between the high and low terminals. This allows for precise control over circuit parameters such as gain, volume, or brightness.

The non-volatile memory feature ensures that the wiper position is retained even when power is removed from the device. This eliminates the need to reconfigure the potentiometer upon power restoration.

Detailed Application Field Plans

The X9315TPI finds applications in various electronic systems where adjustable resistance is required. Some potential application fields include:

1. Audio Systems: Volume control, tone adjustment, and equalization circuits.
2. Display Panels: Brightness control, contrast adjustment, and color calibration.
3. Industrial Control: Analog signal conditioning, sensor calibration, and feedback control.
4. Communication Systems: Signal amplification, filtering, and impedance matching.
5. Test and Measurement Equipment: Calibration, signal generation, and waveform shaping.

Detailed and Complete Alternative Models

1. X9C103S: 10kΩ Resistance Range, 100 Taps, Serial Interface, SOT-23 Package.
2. MCP4017T: 1kΩ Resistance Range, 64 Taps, Serial Interface, TSSOP Package.
3. AD8403ARZ1: 1kΩ Resistance Range, 256 Taps, Serial Interface, SOIC Package.
4. MAX5481EUD+: 100kΩ Resistance Range, 64 Taps, Serial Interface, TSSOP Package.

These alternative models offer different resistance ranges, tap counts, and package options to suit specific application requirements.

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