Overview
The AD5241BRZ100, manufactured by Analog Devices Inc., is a single-channel, 256-position, digitally controlled variable resistor (VR) device. This component functions as an electronic equivalent of a potentiometer, trimmer, or variable resistor, offering a completely programmable resistance value between the A terminal and the wiper, or the B terminal and the wiper. It is designed for applications requiring precise and programmable resistance adjustments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resistance (Ohms) | 100 kΩ | Ohms |
| Number of Positions | 256 | - |
| Interface | I²C-compatible, 2-wire serial data interface | - |
| Temperature Coefficient | 30 ppm/°C | ppm/°C |
| Operating Temperature Range | −40°C to +105°C | °C |
| Supply Voltage Range | 2.7 V to 5.5 V (single-supply), ±2.3 V to ±2.7 V (dual-supply) | V |
| Package Type | 14-Lead SOIC | - |
| Wiper Resistance | 60 Ω (typical) | Ω |
Key Features
- Single-channel, 256-position digitally controlled variable resistor.
- I²C-compatible, 2-wire serial data interface with readback capability.
- Internal power-on midscale preset and self-contained shutdown feature.
- Extra programmable logic outputs for driving digital loads, logic gates, LED drivers, and analog switches.
- Low temperature coefficient of 30 ppm/°C.
- Extended temperature range of −40°C to +105°C.
- Selectable address for multiple package decoding.
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 AD5241BRZ100?
The AD5241BRZ100 is a digitally controlled variable resistor that functions as an electronic equivalent of a potentiometer, trimmer, or variable resistor.
- What is the resistance range of the AD5241BRZ100?
The AD5241BRZ100 has a fixed A-to-B terminal resistance of 100 kΩ.
- What interface does the AD5241BRZ100 use for programming?
The AD5241BRZ100 uses an I²C-compatible, 2-wire serial data interface.
- What is the temperature coefficient of the AD5241BRZ100?
The temperature coefficient is 30 ppm/°C.
- What is the operating temperature range of the AD5241BRZ100?
The operating temperature range is −40°C to +105°C.
- What package types are available for the AD5241BRZ100?
The AD5241BRZ100 is available in 14-Lead SOIC and 14-Lead TSSOP packages.
- Does the AD5241BRZ100 have any additional programmable outputs?
Yes, it has two extra programmable logic outputs available.
- What is the wiper resistance of the AD5241BRZ100?
The wiper resistance is typically 60 Ω.
- Can the AD5241BRZ100 be used in battery-powered applications?
Yes, it supports single-supply operation from 2.7 V to 5.5 V, making it suitable for battery-powered applications.
- What are some common applications of the AD5241BRZ100?
Common applications include multimedia, video, and audio systems, communications equipment, mechanical potentiometer replacement, instrumentation, and programmable voltage-to-current conversion.
