Overview
The AD5282BRUZ200-R7, produced by Analog Devices Inc., is a dual-channel, 256-position, digitally controlled variable resistor (VR). This component functions as a digital potentiometer, offering programmable resistance values between the A terminal, the wiper, and the B terminal. It is designed to operate within a wide voltage range, making it versatile for various electronic systems. The device features an I2C-compatible interface for programming the wiper position and includes a power-on midscale preset, simplifying fault condition recovery at power-up.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Series | AD5282 |
| Resistance | 200 kΩ |
| Temperature Coefficient | 35 ppm/°C |
| Tolerance | 30% |
| Number of POTs | Dual |
| Taps per POT | 256 |
| Wiper Memory | Volatile |
| Digital Interface | I2C |
| Operating Supply Voltage | 4.5 V to 16.5 V (single supply), ±4.5 V to ±5.5 V (dual supply) |
| Operating Supply Current | 25 μA |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +85°C |
| Mounting Style | PCB Mount |
| Termination Style | SMD/SMT |
| Taper | Linear |
| Package/Case | 16-Lead TSSOP |
Key Features
- Surface Mount Package: Available in 16-lead TSSOP packages.
- Programmable Resistor: Offers 256-position programmable resistance with fixed terminal resistances of 20 kΩ, 50 kΩ, or 200 kΩ.
- I2C-Compatible Interface: Allows for easy programming of the wiper position via a 2-wire serial data interface.
- Power-on Midscale Preset: The wiper position defaults to midscale at system power-on, simplifying fault condition recovery.
- Low Temperature Coefficient: 35 ppm/°C, ensuring stable performance across a wide temperature range.
- Programmable Reset: Enables users to set any level of preset at power-up, an alternative to costly EEPROM solutions.
- Additional Programmable Logic Outputs: Can drive digital loads, logic gates, LED drivers, and analog switches.
Applications
- Audio and Video Control: Suitable for adjusting audio and video signals.
- Electronic Signal Processing: Used in various signal processing applications.
- Automated Voltage Control: Can be used as a programmable voltage source.
- Mechanical Potentiometer Replacement: Replaces traditional mechanical potentiometers with digital control.
- Instrumentation: Used for gain and offset adjustments in instrumentation systems.
- Programmable Current Source: Can be configured as a programmable current source).
- Line Impedance Matching: Useful in applications requiring impedance matching).
Q & A
- Q: What is the AD5282BRUZ200-R7 used for?
The AD5282BRUZ200-R7 is a dual-channel, digitally controlled variable resistor used in various applications such as audio and video control, electronic signal processing, and as a replacement for mechanical potentiometers.
- Q: What are the available fixed terminal resistances for the AD5282?
The AD5282 is available with fixed terminal resistances of 20 kΩ, 50 kΩ, or 200 kΩ.
- Q: What is the operating temperature range of the AD5282BRUZ200-R7?
The operating temperature range is from -40°C to +85°C.
- Q: What type of digital interface does the AD5282 use?
The AD5282 uses an I2C-compatible, 2-wire serial data interface.
- Q: Does the AD5282 have a power-on preset feature?
Yes, the AD5282 has a power-on midscale preset feature that places the wiper at midscale during power-on.
- Q: What is the package type of the AD5282BRUZ200-R7?
The AD5282BRUZ200-R7 is available in a 16-lead TSSOP package.
- Q: How many positions does the AD5282 have?
The AD5282 has 256 programmable positions.
- Q: What is the temperature coefficient of the AD5282?
The temperature coefficient is 35 ppm/°C.
- Q: Can the AD5282 be used as a programmable voltage source?
Yes, the AD5282 can be used as a programmable voltage source.
- Q: How do I order the AD5282BRUZ200-R7?
You can order the AD5282BRUZ200-R7 by selecting the 'Add to Cart' button on the product listing page and proceeding to the checkout page to enter your payment and shipping information.
