Overview
The AD5282BRUZ50-REEL7, produced by Analog Devices Inc., is a dual-channel, 256-position, digitally controlled variable resistor (VR). This component functions as a digital potentiometer, trimmer, or variable resistor, offering precise electronic adjustment capabilities. It is part of the AD5280/AD5282 series, which features single and dual-channel configurations. The AD5282 is particularly useful in applications requiring programmable resistance settings, with an I2C-compatible 2-wire serial data interface for wiper position programming.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | |
| Number of Positions | 256 | |
| Terminal Resistance | 50 kΩ | |
| Supply Voltage Range (Single Supply) | 4.5 V to 16.5 V | V |
| Supply Voltage Range (Dual Supply) | ±4.5 V to ±5.5 V | V |
| Operating Temperature Range | −40°C to +85°C | °C |
| Interface | I2C-compatible 2-wire serial bus | |
| Power-On Preset | Midscale | |
| Temperature Coefficient | 30 ppm/°C | |
| Package Type | 16-Lead TSSOP |
Key Features
- Programmable Resistance: 256-position digitally controlled variable resistor with fixed terminal resistance of 50 kΩ.
- I2C Interface: I2C-compatible 2-wire serial data interface for wiper position programming.
- Power-On Preset: Wiper position defaults to midscale at system power-on.
- Programmable Reset: Allows for programmable preset values during power-up.
- Additional Programmable Logic Outputs: Enables driving digital loads, logic gates, LED drivers, and analog switches.
- Low Temperature Coefficient: 30 ppm/°C, ensuring stable performance over temperature variations.
- Extended Industrial Temperature Range: Operates from −40°C to +85°C.
Applications
- Multimedia, Video, and Audio: Used in audio and video equipment for gain and volume control.
- Communications: Employed in communication systems for signal adjustment and impedance matching.
- Mechanical Potentiometer Replacement: Replaces mechanical potentiometers in various applications due to its digital control and reliability.
- Instrumentation: Used for gain and offset adjustments in instrumentation equipment.
- Programmable Voltage and Current Sources: Utilized in creating programmable voltage and current sources.
- Line Impedance Matching: Helps in matching line impedances in various electronic systems.
Q & A
- What is the AD5282BRUZ50-REEL7 used for?
The AD5282BRUZ50-REEL7 is a dual-channel, 256-position, digitally controlled variable resistor used as a digital potentiometer, trimmer, or variable resistor in various electronic applications.
- What is the terminal resistance of the AD5282BRUZ50?
The terminal resistance of the AD5282BRUZ50 is 50 kΩ.
- What is the operating temperature range of the AD5282BRUZ50?
The operating temperature range is from −40°C to +85°C.
- What interface does the AD5282BRUZ50 use?
The AD5282BRUZ50 uses an I2C-compatible 2-wire serial bus interface.
- What is the power-on preset value of the wiper position?
The wiper position defaults to midscale at system power-on.
- Can the AD5282BRUZ50 be used in place of mechanical potentiometers?
- What are some common applications of the AD5282BRUZ50?
- What is the package type of the AD5282BRUZ50?
The package type is a 16-Lead TSSOP.
- Does the AD5282BRUZ50 have additional programmable logic outputs?
- What is the temperature coefficient of the AD5282BRUZ50?
