Overview
The AD5242BRZ10, produced by Analog Devices Inc., is a dual-channel, 256-position, digitally controlled variable resistor (VR) device. This component functions as a digital potentiometer, offering the same electronic adjustment capabilities as a traditional potentiometer, trimmer, or variable resistor. Each VR channel provides a completely programmable resistance value between the A terminal and the wiper, or the B terminal and the wiper. The device is designed for a wide range of applications, including multimedia, communications, and instrumentation, due to its versatile and precise control over resistance values.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 256 | - |
| Fixed A-to-B Terminal Resistance | 10 kΩ, 100 kΩ, 1 MΩ | - |
| Temperature Coefficient | 30 ppm/°C | - |
| Supply Voltage Range | Single-supply: 2.7 V to 5.5 V, Dual-supply: ±2.7 V | V |
| Channel-to-Channel Matching Tolerance | 1% | - |
| Operating Temperature Range | −40°C to +105°C | °C |
| Interface | I²C-compatible, 2-wire serial data interface | - |
| Package Type | 16-lead SOIC, 16-lead TSSOP | - |
Key Features
- I²C-compatible interface with readback capability
- Internal power on midscale preset
- Extra programmable logic outputs for driving digital loads, logic gates, LED drivers, and analog switches
- Self-contained shutdown feature
- Low temperature coefficient of 30 ppm/°C
- Extended temperature range: −40°C to +105°C
Applications
- Multimedia, video, and audio
- Communications
- Mechanical potentiometer replacement
- Instrumentation: gain, offset adjustment
- Programmable voltage-to-current conversion
- Line impedance matching
Q & A
- What is the AD5242BRZ10 used for? The AD5242BRZ10 is used as a digital potentiometer, providing precise control over resistance values in various applications such as multimedia, communications, and instrumentation.
- How many positions does the AD5242BRZ10 have? The AD5242BRZ10 has 256 positions.
- What are the available resistance values for the AD5242BRZ10? The available resistance values are 10 kΩ, 100 kΩ, and 1 MΩ.
- What is the temperature coefficient of the AD5242BRZ10? The temperature coefficient is 30 ppm/°C.
- What is the operating temperature range of the AD5242BRZ10? The operating temperature range is −40°C to +105°C.
- What type of interface does the AD5242BRZ10 use? The AD5242BRZ10 uses an I²C-compatible, 2-wire serial data interface.
- Does the AD5242BRZ10 have programmable logic outputs? Yes, the AD5242BRZ10 has extra programmable logic outputs.
- What is the default wiper position at power on? The wiper position defaults to midscale at system power on.
- What are the package options for the AD5242BRZ10? The package options include 16-lead SOIC and 16-lead TSSOP.
- Can the AD5242BRZ10 be used in dual-supply configurations? Yes, the AD5242BRZ10 can be used in both single-supply and dual-supply configurations.
