AD8402ARUZ50-REEL

Product Overview

Category

The AD8402ARUZ50-REEL belongs to the category of electronic components, specifically digital potentiometers.

Use

This product is used as a digitally controlled variable resistor in various electronic circuits and systems.

Characteristics

• Digital control: The AD8402ARUZ50-REEL can be controlled digitally using a microcontroller or other digital interface.
• Programmable resistance: It allows for precise adjustment of resistance values.
• Non-volatile memory: The resistance settings can be stored even when power is removed.
• Low power consumption: It operates with low power requirements.
• Wide operating voltage range: It can operate within a wide range of supply voltages.
• High resolution: It offers high precision in resistance adjustment.

Package

The AD8402ARUZ50-REEL comes in a small outline package (SOIC) which ensures easy integration into circuit boards.

Essence

The essence of the AD8402ARUZ50-REEL lies in its ability to provide accurate and programmable resistance values in electronic circuits.

Packaging/Quantity

This product is typically packaged in reels containing a specific quantity of units. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Resistance range: 0 to 50 kilohms
• Resolution: 256 steps
• Supply voltage range: 2.7V to 5.5V
• Operating temperature range: -40°C to +125°C
• Interface: Serial Peripheral Interface (SPI)
• Non-volatile memory: Yes

Detailed Pin Configuration

The AD8402ARUZ50-REEL has a total of 16 pins. The pin configuration is as follows:

1. VDD: Positive power supply
2. CS: Chip select input
3. SCLK: Serial clock input
4. SDI: Serial data input
5. GND: Ground
6. VSS: Negative power supply
7. H1: Terminal H1 of the potentiometer
8. H2: Terminal H2 of the potentiometer
9. H3: Terminal H3 of the potentiometer
10. H4: Terminal H4 of the potentiometer
11. L1: Terminal L1 of the potentiometer
12. L2: Terminal L2 of the potentiometer
13. L3: Terminal L3 of the potentiometer
14. L4: Terminal L4 of the potentiometer
15. RLO: Low terminal of the rheostat
16. RHI: High terminal of the rheostat

Functional Features

• Digital control: The AD8402ARUZ50-REEL can be controlled digitally using a microcontroller or other digital interface.
• Programmable resistance: It allows for precise adjustment of resistance values.
• Non-volatile memory: The resistance settings can be stored even when power is removed.
• SPI interface: It utilizes the Serial Peripheral Interface for communication with external devices.
• Power-on reset: It includes a power-on reset feature to ensure proper initialization.

Advantages and Disadvantages

Advantages

• Precise resistance adjustment
• Non-volatile memory for storing resistance settings
• Wide operating voltage range
• Low power consumption
• Compact package for easy integration

Disadvantages

• Limited resolution compared to some other digital potentiometers
• Requires an external microcontroller or digital interface for control

Working Principles

The AD8402ARUZ50-REEL operates based on the principle of digital potentiometry. It consists of a series of resistive elements connected in a ladder-like configuration. By digitally controlling the switches connected to these resistive elements, the effective resistance between the input and output terminals can be adjusted.

The digital control is achieved through the SPI interface, where the microcontroller or digital interface sends commands to set the desired resistance value. The AD8402ARUZ50-REEL then adjusts the switches accordingly to achieve the specified resistance.

Detailed Application Field Plans

The AD8402ARUZ50-REEL finds applications in various fields, including:

1. Audio equipment: It can be used for volume control in audio amplifiers and mixers.
2. Industrial automation: It can be employed in control systems for precise resistance adjustment.
3. Test and measurement instruments: It can be utilized in equipment requiring programmable resistance values.
4. Communication systems: It can be integrated into circuits for signal conditioning and impedance matching.

Detailed and Complete Alternative Models

1. AD8400ARUZ50-REEL: Similar to the AD8402ARUZ50-REEL but with a single potentiometer instead of two.
2. AD8403ARUZ50-REEL: Similar to