Overview
The AD5248BRM100-RL7, produced by Analog Devices Inc., is a dual, 256-position I2C-compatible digital potentiometer. This component offers a compact solution for various adjustment applications, packaged in a 10-lead MSOP (3 mm × 4.9 mm) format. It operates as a 2-terminal variable resistor, making it ideal for high accuracy and stability in variable resistance adjustments. The device is powered by a single supply ranging from 2.7 V to 5.5 V and consumes less than 6 µA, making it suitable for portable battery-operated applications.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Positions | 256 |
| End-to-End Resistance | 100 kΩ |
| Interface | I2C-compatible |
| Package Type | 10-lead MSOP (3 mm × 4.9 mm) |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Supply Current (IDD) | Less than 6 µA |
| Operating Temperature Range | −40°C to +125°C |
| Temperature Coefficient | 35 ppm/°C |
| Wiper Resistance | 160 Ω (typical) |
Key Features
- Full read/write of wiper register
- Power-on preset to midscale
- Extra package address decode pins (AD0 and AD1) for multiple part addressing on the same I2C bus
- Low power consumption: IDD = 6 µA maximum
- Wide operating temperature range: −40°C to +125°C
- Fast settling time: 5 µs typical on power-up
- Selectable address feature
- Computer software available for factory programming, replacing the need for external I2C controllers
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 primary function of the AD5248BRM100-RL7?
The AD5248BRM100-RL7 functions as a 2-terminal variable resistor, providing 256-position digital adjustment.
- What is the operating voltage range of the AD5248BRM100-RL7?
The device operates from a single supply ranging from 2.7 V to 5.5 V.
- What is the maximum supply current of the AD5248BRM100-RL7?
The maximum supply current (IDD) is less than 6 µA.
- What is the temperature coefficient of the AD5248BRM100-RL7?
The temperature coefficient is 35 ppm/°C.
- What is the operating temperature range of the AD5248BRM100-RL7?
The device operates over a temperature range of −40°C to +125°C.
- What interface does the AD5248BRM100-RL7 use for communication?
The device uses an I2C-compatible digital interface.
- What is the package type of the AD5248BRM100-RL7?
The device is packaged in a 10-lead MSOP (3 mm × 4.9 mm) format.
- Does the AD5248BRM100-RL7 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 typical settling time of the AD5248BRM100-RL7 on power-up?
The typical settling time is 5 µs.
- Is there software available for factory programming of the AD5248BRM100-RL7?
Yes, computer software is available for factory programming, replacing the need for external I2C controllers.
