Overview
The AD5243BRMZ2.5 is a dual, 256-position digital potentiometer produced by Analog Devices Inc. This component operates as a digital alternative to mechanical potentiometers and variable resistors, offering high accuracy and stability in variable resistance adjustments. It is part of the AD5243 and AD5248 series, which are designed for compact and precise control in various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| End-to-end Resistance | 2.5 kΩ | kΩ |
| Number of Positions | 256 | - |
| Power Supply Range | 2.7 V to 5.5 V | V |
| Supply Current (IDD) | Less than 6 µA | µA |
| Operating Temperature Range | −40°C to +125°C | °C |
| Package Type | 10-Lead MSOP (3 mm × 4.9 mm) | - |
| Input Logic High (VIH) at VDD = 5 V | 2.4 V | V |
| Input Logic Low (VIL) at VDD = 5 V | 0.8 V | V |
| Input Current (IIL) at VIN = 0 V or 5 V | ±1 µA | µA |
| Input Capacitance (CIL) | 5 pF | pF |
Key Features
- Dual, 256-position digital potentiometer with I2C-compatible digital interface
- 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
- Low power consumption: less than 6 µA
- Low temperature coefficient: 35 ppm/°C
- Wide operating temperature range: −40°C to +125°C
- Computer software available for factory programming, replacing the need for external I2C controllers
- Evaluation board and software available for development and testing
Applications
- Systems calibrations
- Electronics level settings
- Replacement of mechanical trimmers in new designs
- Permanent factory printed circuit board (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 end-to-end resistance of the AD5243BRMZ2.5?
The end-to-end resistance of the AD5243BRMZ2.5 is 2.5 kΩ.
- How many positions does the AD5243BRMZ2.5 have?
The AD5243BRMZ2.5 has 256 positions.
- What is the power supply range for the AD5243BRMZ2.5?
The power supply range for the AD5243BRMZ2.5 is from 2.7 V to 5.5 V.
- What is the typical supply current of the AD5243BRMZ2.5?
The typical supply current of the AD5243BRMZ2.5 is less than 6 µA.
- What is the operating temperature range of the AD5243BRMZ2.5?
The operating temperature range of the AD5243BRMZ2.5 is from −40°C to +125°C.
- What type of package does the AD5243BRMZ2.5 come in?
The AD5243BRMZ2.5 comes in a 10-Lead MSOP package (3 mm × 4.9 mm).
- Is the AD5243BRMZ2.5 suitable for portable battery-operated applications?
- What interface does the AD5243BRMZ2.5 use for control?
The AD5243BRMZ2.5 uses an I2C-compatible digital interface for control.
- Is there any software available for factory programming of the AD5243BRMZ2.5?
- Are there any evaluation kits available for the AD5243BRMZ2.5?
