Overview
The AD5282BRU200-REEL7, 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 the AD5280/AD5282 series, which operates up to +15 V or ±5 V and features an I2C-compatible interface for programming the wiper position.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 2 |
| Number of Positions | 256 |
| Fixed Terminal Resistance | 200 kΩ |
| Temperature Coefficient | 30 ppm/°C |
| Operating Temperature | −40°C to +85°C |
| Supply Voltage Range | +10 V to +15 V (single supply), ±4.5 V to ±5.5 V (dual supply) |
| Logic Supply Voltage | 2.7 V to 5.5 V |
| Logic Supply Current | 60 μA (at VLOGIC = 5 V) |
| Input Logic High | 0.7 × VL to VL + 0.5 V |
| Input Logic Low | 0 to 0.3 × VL |
| Output Logic High | 4.9 V |
| Output Logic Low | 0.4 V |
| Shutdown Current | 5 μA |
| Package Type | 16-Lead TSSOP |
Key Features
- Completely programmable resistance value between A terminal and wiper or B terminal and wiper.
- I2C-compatible interface for wiper position programming.
- Power-on midscale preset and programmable reset.
- Additional programmable logic outputs to drive digital loads, logic gates, LED drivers, and analog switches.
- Low temperature coefficient of 30 ppm/°C.
- Operating temperature range of −40°C to +85°C.
- Sleep mode programmability for power-up presets.
Applications
- Multimedia, video, and audio.
- Communications.
- Mechanical potentiometer replacement.
- Instrumentation: gain and offset adjustment.
- Programmable voltage source and programmable current source.
- Line impedance matching.
Q & A
- What is the AD5282BRU200-REEL7 used for? The AD5282BRU200-REEL7 is used as a digitally controlled variable resistor, replacing mechanical potentiometers and trimmers in various applications.
- How many channels does the AD5282BRU200-REEL7 have? The AD5282BRU200-REEL7 has two channels.
- What is the number of positions for the AD5282BRU200-REEL7? The device has 256 positions.
- What is the fixed terminal resistance of the AD5282BRU200-REEL7? The fixed terminal resistance is 200 kΩ.
- What is the temperature coefficient of the AD5282BRU200-REEL7? The temperature coefficient is 30 ppm/°C.
- What is the operating temperature range of the AD5282BRU200-REEL7? The operating temperature range is −40°C to +85°C.
- How is the wiper position programmed in the AD5282BRU200-REEL7? The wiper position is programmed using an I2C-compatible interface.
- Does the AD5282BRU200-REEL7 have any additional programmable outputs? Yes, it has additional programmable logic outputs to drive digital loads, logic gates, LED drivers, and analog switches.
- What is the package type of the AD5282BRU200-REEL7? The package type is 16-Lead TSSOP.
- Is the AD5282BRU200-REEL7 RoHS compliant? Yes, the AD5282BRU200-REEL7 is RoHS compliant and lead-free.
