Overview
The AD5262BRUZ20, 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. It is designed to operate with a single supply of 5 V to 15 V or a dual supply of ±5.5 V, making it versatile for various applications. Each channel of the AD5262 is independently programmable and features a fixed resistor with a wiper contact that can be set to 256 different positions via an SPI-compatible serial interface.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 2 |
| Number of Positions | 256 |
| Nominal Resistor Values | 20 kΩ, 50 kΩ, 200 kΩ |
| Operating Temperature Range | -40°C to +85°C |
| Resistance Temperature Coefficient | 35 ppm/°C |
| Resistor Tolerance | 30% max |
| Supply Voltage Range | 5 V to 15 V (single supply), ±5.5 V (dual supply) |
| Interface | SPI-compatible serial interface |
| Package | 16-lead TSSOP |
| RoHS Compliance | Compliant |
Key Features
- Dual-channel, 256-position digital potentiometer
- Independently programmable channels
- SPI-compatible serial interface for easy programming
- Operates with single supply (5 V to 15 V) or dual supply (±5.5 V)
- Low temperature coefficient of 35 ppm/°C
- Power on midscale preset
- Optional reset pin to force wiper to midscale position
- Supports daisy-chaining for multiple VR applications
Applications
- Mechanical potentiometer replacement
- Instrumentation: gain and offset adjustment
- Stereo channel audio level control
- Programmable voltage-to-current conversion
- Programmable filters, delays, and time constants
- Line impedance matching
- Low resolution DAC replacement
Q & A
- What is the AD5262BRUZ20 used for?
The AD5262BRUZ20 is used as a digital potentiometer, replacing mechanical potentiometers and variable resistors in various applications.
- How many channels does the AD5262BRUZ20 have?
The AD5262BRUZ20 has two independently programmable channels.
- What is the resolution of the AD5262BRUZ20?
The AD5262BRUZ20 has a resolution of 256 positions per channel.
- What are the nominal resistor values available for the AD5262BRUZ20?
The nominal resistor values are 20 kΩ, 50 kΩ, and 200 kΩ.
- What is the operating temperature range of the AD5262BRUZ20?
The operating temperature range is -40°C to +85°C.
- What interface does the AD5262BRUZ20 use for programming?
The AD5262BRUZ20 uses an SPI-compatible serial interface for programming.
- Is the AD5262BRUZ20 RoHS compliant?
Yes, the AD5262BRUZ20 is RoHS compliant.
- What package type is the AD5262BRUZ20 available in?
The AD5262BRUZ20 is available in a 16-lead TSSOP package.
- Can the AD5262BRUZ20 be used in daisy-chain configurations?
Yes, the AD5262BRUZ20 supports daisy-chaining for multiple VR applications.
- What is the power on default state of the wiper position?
The wiper position is set to midscale on power on.
