X9261TS24I

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Potentiometer
• Characteristics: Programmable, Non-volatile, Serial Interface
• Package: TSOP-24
• Essence: X9261TS24I is a digital potentiometer IC that provides programmable resistance values. It is designed to replace traditional mechanical potentiometers in various applications.
• Packaging/Quantity: The X9261TS24I is typically packaged in tubes or reels and is available in large quantities.

Specifications

• Resistance Range: Programmable from 0 to maximum value
• Resolution: 256 taps
• Interface: Serial (SPI) interface
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature: -40°C to +85°C
• Non-volatile Memory: Stores wiper position during power-off
• Endurance: 100,000 write cycles
• Package Dimensions: 6.4mm x 10.3mm x 1.2mm

Detailed Pin Configuration

The X9261TS24I has a total of 24 pins arranged as follows:

1. VCC: Power supply voltage
2. GND: Ground reference
3. SCLK: Serial clock input
4. SDI: Serial data input
5. SDO: Serial data output
6. CS: Chip select input
7. WP: Write protect input
8. HIZ: High impedance output 9-24. W0-W15: Wiper terminal connections

Functional Features

• Programmable Resistance: The X9261TS24I allows users to digitally program the resistance value, eliminating the need for manual adjustment.
• Non-volatile Memory: The IC stores the wiper position even when power is turned off, ensuring the last set resistance value is retained.
• Serial Interface: The SPI interface enables easy communication with microcontrollers or other digital devices.
• High Resolution: With 256 taps, the X9261TS24I provides fine-grained control over resistance values.

Advantages and Disadvantages

Advantages: - Precise and repeatable resistance settings - Eliminates mechanical wear and tear - Non-volatile memory ensures retention of settings - Compact size and easy integration into various circuits

Disadvantages: - Limited maximum resistance value compared to some traditional potentiometers - Requires additional circuitry for proper operation

Working Principles

The X9261TS24I utilizes a combination of resistive ladder network and electronic switches to achieve programmable resistance. The digital inputs control the switches, allowing the user to select the desired resistance value. The IC then adjusts the wiper position accordingly, effectively changing the resistance between the wiper terminal and other terminals.

Detailed Application Field Plans

The X9261TS24I finds applications in various fields, including:

1. Audio Equipment: Volume control, tone adjustment
2. Industrial Automation: Calibration, feedback control
3. Test and Measurement Instruments: Fine-tuning, calibration
4. Communication Systems: Signal conditioning, impedance matching
5. Automotive Electronics: Sensor calibration, control systems

Alternative Models

1. X9258TS24I: Similar specifications, different package (TSOP-24)
2. X9C103SIZ: Lower resolution (100 taps), smaller package (SOIC-8)
3. MCP4131-103E/P: Higher resolution (1024 taps), different interface (I2C)

These alternative models offer similar functionality but may have differences in terms of package, resolution, or interface.

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