X9C503SIZT1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Non-volatile, 50kΩ resistance range, 256 tap points
• Package: SOT-23-8
• Essence: Provides a digitally controlled variable resistor
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Resistance Range: 50kΩ
• Tap Points: 256
• End-to-End Resistance Tolerance: ±20%
• Temperature Coefficient: ±300ppm/°C
• Operating Voltage: 2.7V to 5.5V
• Standby Current: 1μA (max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The X9C503SIZT1 has a total of 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 2 │ ├───┼───┤ │ 3 │ 4 │ ├───┼───┤ │ 5 │ 6 │ ├───┼───┤ │ 7 │ 8 │ └───┴───┘

1. Terminal A: Connects to one end of the potentiometer resistance element.
2. Terminal W: Connects to the wiper terminal of the potentiometer.
3. Terminal B: Connects to the other end of the potentiometer resistance element.
4. VCC: Power supply voltage input.
5. H/L: High/Low control input for incrementing/decrementing the wiper position.
6. CS: Chip select input for enabling the device.
7. SCL: Serial clock input for controlling data transfer.
8. SDA: Serial data input/output.

Functional Features

• Non-volatile memory: The X9C503SIZT1 retains its wiper position even when power is removed.
• Digital control: The potentiometer can be adjusted digitally using the H/L control input.
• Wide resistance range: The device offers a 50kΩ resistance range, allowing for versatile applications.
• High resolution: With 256 tap points, precise adjustments can be made.
• Low standby current: The device consumes minimal power in standby mode.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures settings are retained even during power loss. - Digital control allows for precise adjustments. - Wide resistance range provides flexibility in various applications. - High resolution enables fine-tuning of circuit parameters.

Disadvantages: - Limited to a single-channel configuration. - End-to-end resistance tolerance may affect precision in some applications. - Temperature coefficient may introduce variations with temperature changes.

Working Principles

The X9C503SIZT1 is based on the concept of a digital potentiometer. It consists of a resistive element connected between terminals A and B, with the wiper terminal (W) movable along this element. The wiper position determines the effective resistance between terminals A and W.

The device utilizes non-volatile memory to store the wiper position, ensuring it remains unchanged even when power is removed. The wiper position can be adjusted digitally by applying high or low signals to the H/L control input. This moves the wiper up or down the resistive element, changing the resistance between terminals A and W accordingly.

Detailed Application Field Plans

The X9C503SIZT1 finds applications in various fields, including:

1. Audio Equipment: Volume control, tone adjustment.
2. Industrial Automation: Calibration, circuit trimming.
3. Test and Measurement Instruments: Fine-tuning of parameters.
4. Communication Systems: Signal conditioning, gain control.
5. Automotive Electronics: Climate control, sensor calibration.

Detailed and Complete Alternative Models

• X9C103SIZT1: 10kΩ resistance range, 256 tap points.
• X9C203SIZT1: 20kΩ resistance range, 256 tap points.
• X9C303SIZT1: 30kΩ resistance range, 256 tap points.
• X9C403SIZT1: 40kΩ resistance range, 256 tap points.

These alternative models offer different resistance ranges while maintaining the same functionality and characteristics as the X9C503SIZT1.

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