Overview
The AD5282BRU200, produced by Analog Devices Inc., is a dual-channel, 256-position, digitally controlled variable resistor (VR). This device performs the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. It is designed to offer a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. The AD5282 is part of a family of digital potentiometers that provide precise and flexible resistance adjustment in various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | |
| Number of Positions | 256 | |
| Fixed Terminal Resistance | 20 kΩ, 50 kΩ, 200 kΩ | Ω |
| Channel-to-Channel Matching Tolerance | 1% | |
| Temperature Coefficient | 30 ppm/°C | ppm/°C |
| Operating Temperature Range | −40°C to +85°C | °C |
| Supply Voltage | +10 V to +15 V (single supply), ±5.5 V (dual supply) | V |
| Interface | I2C-compatible, 2-wire serial data interface | |
| Package Type | 16-Lead TSSOP |
Key Features
- Completely programmable resistance between A terminal and wiper or B terminal and wiper.
- Power-on midscale preset and programmable reset.
- Low temperature coefficient of 30 ppm/°C.
- I2C-compatible, 2-wire serial data interface for programming.
- Sleep mode programmability for power-up presets.
- Additional programmable logic outputs for driving digital loads, logic gates, LED drivers, and analog switches.
Applications
- Multimedia, video, and audio systems.
- Communications equipment.
- Mechanical potentiometer replacement.
- Instrumentation: gain and offset adjustment.
- Programmable voltage and current sources.
- Line impedance matching.
Q & A
- What is the AD5282BRU200 used for?
The AD5282BRU200 is used as a digitally controlled variable resistor, replacing traditional potentiometers, trimmers, or variable resistors in various applications.
- How many positions does the AD5282BRU200 have?
The AD5282BRU200 has 256 positions for each channel.
- What are the available fixed terminal resistances for the AD5282BRU200?
The fixed terminal resistances are 20 kΩ, 50 kΩ, and 200 kΩ.
- What is the temperature coefficient of the AD5282BRU200?
The temperature coefficient is 30 parts per million per degree centigrade (ppm/°C).
- What is the operating temperature range of the AD5282BRU200?
The operating temperature range is from −40°C to +85°C.
- What type of interface does the AD5282BRU200 use for programming?
The AD5282BRU200 uses an I2C-compatible, 2-wire serial data interface.
- Does the AD5282BRU200 have sleep mode programmability?
Yes, the AD5282BRU200 features sleep mode programmability for power-up presets.
- What package types are available for the AD5282BRU200?
The AD5282BRU200 is available in 16-Lead TSSOP packages.
- Can the AD5282BRU200 drive digital loads and analog switches?
Yes, the AD5282BRU200 has additional programmable logic outputs that can drive digital loads, logic gates, LED drivers, and analog switches.
- What are some common applications of the AD5282BRU200?
Common applications include multimedia, video, and audio systems, communications equipment, mechanical potentiometer replacement, instrumentation, and programmable voltage and current sources.
