Overview
The AD5248BRMZ2.5-RL7, produced by Analog Devices Inc., is a dual, 256-position digital potentiometer that offers a compact and versatile solution for various adjustment applications. This device operates within a 2.7 V to 5.5 V power supply range and consumes less than 6 µA, making it suitable for portable battery-operated applications. The AD5248 performs the same adjustment function as a 2-terminal variable resistor and is available in several end-to-end resistance values, including 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ. The device features an I2C-compatible digital interface for controlling the wiper settings and includes extra package address decode pins for multiple part addressing on the same I2C bus.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| End-to-End Resistance | 2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | Ω |
| Number of Positions | 256 | - |
| Power Supply Range | 2.7 V to 5.5 V | V |
| Supply Current | < 6 µA | µA |
| Package Type | 10-Lead MSOP (3 mm × 4.9 mm) | - |
| Operating Temperature Range | -40°C to +125°C | °C |
| Temperature Coefficient | 35 ppm/°C | ppm/°C |
| Settling Time | 5 µs typical | µs |
| Bandwidth, -3 dB | 4.8 MHz | MHz |
| Total Harmonic Distortion | 0.1 % | % |
Key Features
- 2-channel, 256-position digital potentiometers
- I2C-compatible digital interface for wiper setting control
- Extra package address decode pins (AD0 and AD1) for multiple part addressing
- Low temperature coefficient: 35 ppm/°C
- Low power consumption: < 6 µA
- Compact 10-lead MSOP package (3 mm × 4.9 mm)
- Fast settling time: 5 µs typical on power-up
- Full read/write of wiper register
- Power-on preset to midscale
- Computer software available for factory programming, compatible with Windows NT/2000/XP
Applications
- Systems calibrations
- Electronics level settings
- Mechanical trimmers replacement in new designs
- Permanent factory printed circuit board (PCB) settings
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Gain control and offset adjustment
Q & A
- What is the operating voltage range of the AD5248BRMZ2.5-RL7?
The operating voltage range is from 2.7 V to 5.5 V.
- What are the available end-to-end resistance values for the AD5248BRMZ2.5-RL7?
The available end-to-end resistance values are 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the package type of the AD5248BRMZ2.5-RL7?
The package type is a 10-lead MSOP (3 mm × 4.9 mm).
- What is the typical settling time of the AD5248BRMZ2.5-RL7?
The typical settling time is 5 µs on power-up.
- What is the temperature coefficient of the AD5248BRMZ2.5-RL7?
The temperature coefficient is 35 ppm/°C.
- Can multiple AD5248BRMZ2.5-RL7 devices share the same I2C bus?
- What are some common applications of the AD5248BRMZ2.5-RL7?
- Is there software available for factory programming of the AD5248BRMZ2.5-RL7?
- What is the operating temperature range of the AD5248BRMZ2.5-RL7?
- How much power does the AD5248BRMZ2.5-RL7 consume?
- Is an evaluation kit available for the AD5248BRMZ2.5-RL7?
