Overview
The AD5241BRZ1M, produced by Analog Devices Inc., is a single-channel, 256-position, digitally controlled variable resistor (VR) device. It functions as a digital potentiometer, trimmer, or variable resistor, offering precise resistance adjustments between the A terminal and the wiper, or the B terminal and the wiper. This device is ideal for applications requiring accurate resistance settings, such as instrumentation, calibration, and sensor signal trimming. It operates from a single supply of 2.7 V to 5.5 V or dual supplies of ±2.7 V, making it versatile for various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resistance Range | 1 MΩ | Ohms |
| Number of Taps | 256 | - |
| Temperature Coefficient | 30 ppm/°C | - |
| Operating Temperature | −40°C to +105°C | °C |
| Supply Voltage (Single) | 2.7 V to 5.5 V | V |
| Supply Voltage (Dual) | ±2.3 V to ±2.7 V | V |
| Interface | I2C-compatible | - |
| Package Type | 14-Lead SOIC | - |
| Power Dissipation | 0.5 to 250 µW | µW |
Key Features
- Internal power-on reset to midscale position for quick initial circuit adjustment.
- Two extra programmable logic outputs to drive digital loads, logic gates, LED drivers, and analog switches.
- I2C-compatible, 2-wire serial data interface with readback capability.
- Low temperature coefficient of 30 ppm/°C for stable performance.
- Self-contained shutdown feature for power management.
- Available in surface-mount packages, including 14-lead SOIC and TSSOP.
Applications
- Multimedia, video, and audio systems.
- Communications equipment.
- Mechanical potentiometer replacement.
- Instrumentation: gain and offset adjustment.
- Programmable voltage-to-current conversion.
- Line impedance matching.
Q & A
- What is the primary function of the AD5241BRZ1M?
The AD5241BRZ1M functions as a digitally controlled variable resistor, performing the same electronic adjustment as a potentiometer, trimmer, or variable resistor. - What are the operating voltage ranges for the AD5241BRZ1M?
The device operates from a single supply of 2.7 V to 5.5 V or dual supplies of ±2.3 V to ±2.7 V. - How many positions does the AD5241BRZ1M have?
The device has 256 positions. - What is the temperature coefficient of the AD5241BRZ1M?
The nominal temperature coefficient is 30 ppm/°C. - What interface does the AD5241BRZ1M use?
The device uses an I2C-compatible, 2-wire serial data interface. - What are the package options for the AD5241BRZ1M?
The device is available in 14-lead SOIC and TSSOP packages. - What are some common applications of the AD5241BRZ1M?
Common applications include multimedia, video, and audio systems, communications equipment, mechanical potentiometer replacement, instrumentation, and line impedance matching. - Does the AD5241BRZ1M have programmable logic outputs?
Yes, the device has two extra programmable logic outputs. - How does the AD5241BRZ1M handle power-on reset?
The device has an internal power-on reset to midscale position. - What is the operating temperature range of the AD5241BRZ1M?
The operating temperature range is −40°C to +105°C.
