Overview
The AD5262BRU20, produced by Analog Devices Inc., is a dual-channel, 256-position, digitally controlled variable resistor (VR) device. This component functions as a digital potentiometer, offering the same electronic adjustment capabilities as a mechanical potentiometer or variable resistor. Each channel of the AD5262 contains a fixed resistor with a wiper contact that can be programmed to tap the fixed resistor at various points using a digital code loaded into the SPI-compatible serial-input register. This device is designed for high-reliability and precision applications, making it suitable for a wide range of industries.
Key Specifications
| Parameter | Description |
|---|---|
| Number of Channels | 2 (independently programmable) |
| Number of Positions | 256 |
| Resistance Values | 20 kΩ, 50 kΩ, 200 kΩ |
| Temperature Coefficient | 35 ppm/°C |
| Interface | 4-wire, SPI-compatible serial data input |
| Supply Voltage | 5 V to 15 V single-supply; ±5.5 V dual-supply |
| Operating Temperature | -40°C to +85°C |
| Package | 16-lead TSSOP |
| Wiper Resistance | Typically 60 Ω |
| Memory Type | Volatile |
Key Features
- Linear taper for precise control
- Cascade pin configuration for expansion or combining devices
- Power on midscale preset
- Optional reset pin (PR) to force the wiper to the midscale position
- SPI-compatible serial data input for easy communication
- High-reliability and precision in various operating conditions
Applications
- Industrial control systems
- Audio devices (e.g., stereo channel audio level control)
- Medical equipment
- Automotive systems
- Aerospace and defense applications
- Programmable power supplies and filters
- Line impedance matching
- Sensor calibration
Q & A
- What is the AD5262BRU20 used for?
The AD5262BRU20 is used as a digital potentiometer, replacing mechanical potentiometers or variable resistors in various applications.
- How many channels does the AD5262BRU20 have?
The AD5262BRU20 has two independently programmable channels.
- What are the available resistance values for the AD5262BRU20?
The available resistance values are 20 kΩ, 50 kΩ, and 200 kΩ.
- What is the temperature coefficient of the AD5262BRU20?
The temperature coefficient is 35 ppm/°C.
- What interface does the AD5262BRU20 use?
The AD5262BRU20 uses a 4-wire, SPI-compatible serial data input interface.
- What is the operating temperature range of the AD5262BRU20?
The operating temperature range is -40°C to +85°C.
- What is the typical wiper resistance of the AD5262BRU20?
The typical wiper resistance is 60 Ω.
- Can the AD5262BRU20 be cascaded?
- What is the package type of the AD5262BRU20?
The package type is 16-lead TSSOP.
- Is the AD5262BRU20 RoHS compliant?
No, the AD5262BRU20 is not RoHS compliant.
