Overview
The AD5248BRM100, produced by Analog Devices Inc., is a dual, 256-position digital potentiometer designed for high accuracy and stability in variable resistance adjustments. This component operates as a 2-terminal variable resistor and is packaged in a compact 10-lead MSOP (3 mm × 4.9 mm) package. It is ideal for applications requiring precise electronic adjustments, such as systems calibrations, electronics level settings, and mechanical trimmers replacement in new designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| End-to-end Resistance | 2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | Ω |
| Number of Positions | 256 | - |
| Interface | I2C-compatible | - |
| Supply Voltage | 2.7 V to 5.5 V | V |
| Supply Current (IDD) | Less than 6 µA | µA |
| Operating Temperature | −40°C to +125°C | °C |
| Temperature Coefficient | 35 ppm/°C | ppm/°C |
| Wiper Resistance (RW) | Typically 160 Ω | Ω |
| Package Type | 10-MSOP (3 mm × 4.9 mm) | - |
Key Features
- Compact 10-lead MSOP package (3 mm × 4.9 mm)
- Full read/write of wiper register
- Power-on preset to midscale
- Extra package address decode pins (AD0 and AD1) for multiple device addressing on the same I2C bus
- Low power consumption: IDD = 6 µA maximum
- Low temperature coefficient: 35 ppm/°C
- Wide operating temperature range: −40°C to +125°C
- Evaluation board available
- Computer software 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 AD5248BRM100 used for?
The AD5248BRM100 is used for high accuracy and stability in variable resistance adjustments, such as systems calibrations, electronics level settings, and mechanical trimmers replacement.
- What are the available end-to-end resistance values for the AD5248BRM100?
The available end-to-end resistance values are 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the interface type of the AD5248BRM100?
The interface is I2C-compatible.
- What is the supply voltage range for the AD5248BRM100?
The supply voltage range is 2.7 V to 5.5 V.
- How much power does the AD5248BRM100 consume?
The AD5248BRM100 consumes less than 6 µA.
- What is the operating temperature range of the AD5248BRM100?
The operating temperature range is −40°C to +125°C.
- What is the temperature coefficient of the AD5248BRM100?
The temperature coefficient is 35 ppm/°C.
- Does the AD5248BRM100 have address decode pins?
Yes, it has extra package address decode pins (AD0 and AD1) for multiple device addressing on the same I2C bus.
- Is an evaluation board available for the AD5248BRM100?
Yes, an evaluation board is available.
- Can the AD5248BRM100 be programmed using computer software?
Yes, computer software can be used for factory programming, replacing the need for external I2C controllers.
