AD5207BRU100-REEL7

Overview

Product Category: Integrated Circuit (IC)

Use: Digital Potentiometer

Characteristics: - 256-Position Digital Potentiometer - Nonvolatile Memory for Wiper Settings - Low Temperature Coefficient - Wide Power Supply Range: 2.7V to 5.5V - SPI-Compatible Serial Interface - Compact Package Size

Package: TSSOP-16

Essence: The AD5207BRU100-REEL7 is a digital potentiometer IC that provides a programmable resistance value. It offers a compact and versatile solution for applications requiring adjustable resistance.

Packaging/Quantity: The AD5207BRU100-REEL7 is available in tape and reel packaging, with 250 units per reel.

Specifications

• Resolution: 8 bits
• Resistance Range: 0Ω to 100kΩ
• Number of Channels: 1
• End-to-End Resistance Tolerance: ±20%
• Temperature Coefficient: 35ppm/°C
• Operating Temperature Range: -40°C to +125°C
• Supply Voltage Range: 2.7V to 5.5V
• Interface: SPI-compatible serial interface

Pin Configuration

The AD5207BRU100-REEL7 has a total of 16 pins arranged as follows:

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| | | 1 2 3 4 5 6 7 8 | | | | 16 15 14 13 12 11 10 9 | |_______________________________________| ```

Pin Description: 1. VDD: Positive Power Supply 2. CS: Chip Select (Active Low) 3. SCLK: Serial Clock Input 4. SDI: Serial Data Input 5. GND: Ground 6. A1: Address Bit 1 7. A0: Address Bit 0 8. WP: Write Protect (Active Low) 9. NC: No Connection 10. NC: No Connection 11. NC: No Connection 12. NC: No Connection 13. NC: No Connection 14. H: Terminal H of the Potentiometer 15. W: Wiper Terminal of the Potentiometer 16. L: Terminal L of the Potentiometer

Functional Features

• Programmable resistance value with 256 positions
• Nonvolatile memory for storing wiper settings
• SPI-compatible serial interface for easy control
• Wide power supply range allows for versatile applications
• Low temperature coefficient ensures stable performance across temperature variations

Advantages and Disadvantages

Advantages: - Compact package size saves board space - Nonvolatile memory preserves wiper settings during power-off - Wide power supply range enables compatibility with various systems - Low temperature coefficient ensures accurate resistance values

Disadvantages: - Limited to a single channel, not suitable for applications requiring multiple independent potentiometers - End-to-end resistance tolerance of ±20% may limit precision in some applications

Working Principles

The AD5207BRU100-REEL7 is based on the concept of a digital potentiometer. It replaces the traditional mechanical potentiometer with an electronic circuit that can be controlled digitally. The IC consists of a resistor array and a wiper switch network. By adjusting the digital code sent through the serial interface, the wiper position can be changed, effectively changing the resistance between the H and L terminals.

Detailed Application Field Plans

The AD5207BRU100-REEL7 finds applications in various fields, including:

1. Audio Equipment: Volume control, tone adjustment
2. Industrial Control Systems: Calibration, feedback control
3. Test and Measurement Instruments: Variable gain amplifiers, signal conditioning
4. Communication Systems: Attenuation control, impedance matching
5. Automotive Electronics: Sensor calibration, climate control

Detailed and Complete Alternative Models

1. AD5206: 6-bit digital potentiometer with similar features but lower resolution.
2. AD8403: 8-bit digital potentiometer with multiple channels for independent control.
3. MCP4131: 8-bit digital potentiometer with nonvolatile memory and SPI interface.

These alternative models offer different specifications and features to suit specific application requirements.

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