Overview
The AD5248BRMZ2.5, produced by Analog Devices Inc., is a dual, 256-position, I2C-compatible digital potentiometer. This component is designed to perform the same electronic adjustment function as a 2-terminal variable resistor, making it ideal for applications requiring high accuracy and stability in variable resistance adjustments. The device operates within a compact 10-lead MSOP package, measuring 3 mm × 4.9 mm, and is suitable for a wide range of applications due to its low temperature coefficient and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| End-to-end Resistance | 2.5 kΩ | kΩ |
| Number of Positions | 256 | - |
| Package Type | 10-lead MSOP | - |
| Package Dimensions | 3 mm × 4.9 mm | mm |
| Power Supply Range | 2.7 V to 5.5 V | V |
| Maximum Current Consumption | 6 µA | µA |
| Operating Temperature Range | −40°C to +125°C | °C |
| Temperature Coefficient | 35 ppm/°C | ppm/°C |
| Settling Time on Power-Up | 5 µs typical | µs |
Key Features
- I2C-compatible digital interface for wiper setting control
- Extra package address decode pins (AD0 and AD1) for multiple part addressing on the same I2C bus
- Low temperature coefficient for high accuracy and stability
- Low power consumption, suitable for battery-operated applications
- Compact 10-lead MSOP package
- Power-on preset to midscale
- Full read/write of wiper register
- Computer software available for factory programming, replacing the need for external I2C controllers
Applications
- Systems calibrations
- Electronics level settings
- Replacement of mechanical trimmers in new designs
- Permanent factory PCB settings
- Transducer adjustment for pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Gain control and offset adjustment
Q & A
- What is the primary function of the AD5248BRMZ2.5?
The AD5248BRMZ2.5 functions as a 2-terminal variable resistor, providing 256-position digital potentiometer adjustments.
- What are the available end-to-end resistance values for the AD5248?
The AD5248 is available in four end-to-end resistance values: 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the power supply range for the AD5248BRMZ2.5?
The device operates from a 2.7 V to 5.5 V power supply.
- How does the AD5248BRMZ2.5 consume power?
The device consumes less than 6 µA, making it suitable for battery-operated applications.
- What is the operating temperature range of the AD5248BRMZ2.5?
The operating temperature range is −40°C to +125°C.
- What interface does the AD5248BRMZ2.5 use for wiper setting control?
The device uses an I2C-compatible digital interface.
- Does the AD5248BRMZ2.5 have address decode pins?
Yes, it has extra package address decode pins (AD0 and AD1) for multiple part addressing on the same I2C bus.
- What is the settling time on power-up for the AD5248BRMZ2.5?
The settling time on power-up is typically 5 µs.
- Is there software available for factory programming of the AD5248BRMZ2.5?
Yes, Analog Devices offers device programming software for factory programming, which replaces the need for external I2C controllers.
- What kind of package does the AD5248BRMZ2.5 come in?
The device is packaged in a compact 10-lead MSOP package measuring 3 mm × 4.9 mm.
