Overview
The AD5242BRU10, manufactured by Analog Devices Inc., is a digitally controlled variable resistor (VR) device. This component functions as a digital potentiometer, simulating the behavior of traditional analog potentiometers or variable resistors. It is part of the AD5241/AD5242 series, which offers single- or dual-channel configurations with 256 positions. The AD5242BRU10 is specifically designed with a fixed A-to-B terminal resistance of 10 kΩ and features an I²C-compatible interface for programming and control.
Key Specifications
| Parameter | Description |
|---|---|
| Number of Positions | 256 positions |
| Resistance Range | 10 kΩ, 100 kΩ, 1 MΩ |
| Temperature Coefficient | 30 ppm/°C |
| Operating Voltage | Single-supply 2.7 V to 5.5 V or dual-supply ±2.7 V |
| Interface | I²C-compatible, 2-wire serial data interface with readback capability |
| Logic Outputs | Two extra programmable logic outputs |
| Shutdown Feature | Self-contained shutdown feature |
| Temperature Range | −40°C to +105°C |
| Package Type | 16-TSSOP (0.173", 4.40mm Width) |
Key Features
- High accuracy and long lifespan compared to traditional mechanical potentiometers
- Strong anti-interference ability
- Internal power on midscale preset, ensuring the wiper position defaults to midscale at system power on
- I²C-compatible interface with readback capability for precise control and monitoring
- Two extra programmable logic outputs for driving digital loads, logic gates, LED drivers, and analog switches
- Self-contained shutdown feature for power management
- Extended temperature range of −40°C to +105°C, making it suitable for a wide range of applications
Applications
- Audio Equipment: Used for electronic volume control and tone adjustments in audio systems, including amplifiers and equalizers.
- Consumer Electronics: Employed in various household appliances such as televisions, speakers, air conditioners, and refrigerators to adjust parameters like volume, brightness, and temperature.
- Motor Control: Used in motor control circuits for adjusting speed, torque, and other control parameters.
- Power Management: Utilized in power management systems for precise control over voltage and current.
- Multimedia and Video: Used in multimedia, video, and communications equipment for gain and offset adjustments.
- Instrumentation: Used for programmable voltage-to-current conversion and line impedance matching in instrumentation applications.
Q & A
- What is the AD5242BRU10 used for?
The AD5242BRU10 is a digitally controlled variable resistor used to simulate the behavior of traditional analog potentiometers or variable resistors in integrated circuits.
- What are the available resistance ranges for the AD5242BRU10?
The AD5242BRU10 is available with fixed A-to-B terminal resistances of 10 kΩ, 100 kΩ, or 1 MΩ.
- What is the temperature coefficient of the AD5242BRU10?
The nominal temperature coefficient of the AD5242BRU10 is 30 ppm/°C.
- What type of interface does the AD5242BRU10 use?
The AD5242BRU10 uses an I²C-compatible, 2-wire serial data interface with readback capability.
- What is the operating voltage range for the AD5242BRU10?
The AD5242BRU10 operates on a single-supply voltage of 2.7 V to 5.5 V or a dual-supply voltage of ±2.7 V.
- Does the AD5242BRU10 have programmable logic outputs?
Yes, the AD5242BRU10 has two extra programmable logic outputs available.
- What is the package type of the AD5242BRU10?
The AD5242BRU10 is packaged in a 16-TSSOP (0.173", 4.40mm Width) package.
- What is the temperature range of the AD5242BRU10?
The AD5242BRU10 operates over an extended temperature range of −40°C to +105°C.
- Can the AD5242BRU10 be used in audio equipment?
Yes, the AD5242BRU10 can be used in audio equipment for electronic volume control and tone adjustments.
- Is the AD5242BRU10 suitable for motor control applications?
Yes, the AD5242BRU10 is suitable for motor control applications to adjust speed, torque, and other control parameters.
