Overview
The AD5242BRUZ10-RL7 is a dual-channel, 256-position, digitally controlled variable resistor (VR) device produced by Analog Devices Inc. This component functions as a digital potentiometer, offering the same electronic adjustment capabilities as a traditional potentiometer, trimmer, or variable resistor. It is designed for applications requiring precise and programmable resistance adjustments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 256 | - |
| Fixed A-to-B Terminal Resistance | 10 kΩ, 100 kΩ, 1 MΩ | Ω |
| Channel-to-Channel Matching Tolerance | 1% | - |
| Temperature Coefficient | 30 ppm/°C | ppm/°C |
| Supply Voltage | 2.7 V to 5.5 V (single-supply), ±2.7 V (dual-supply) | V |
| Operating Temperature Range | −40°C to +105°C | °C |
| Package Type | 16-Lead TSSOP | - |
| I2C Interface | I2C-compatible, 2-wire serial data interface | - |
| Extra Programmable Logic Outputs | Two extra programmable logic outputs | - |
Key Features
- Single-supply operation from 2.7 V to 5.5 V or dual-supply operation from ±2.7 V for AC or bipolar operation.
- Internal power-on midscale preset.
- I2C-compatible interface with readback capability.
- Two extra programmable logic outputs for driving digital loads, logic gates, LED drivers, and analog switches.
- Self-contained shutdown feature.
- Extended temperature range of −40°C to +105°C.
Applications
- Multimedia, video, and audio systems.
- Communications systems.
- Mechanical potentiometer replacement.
- Instrumentation: gain and offset adjustment.
- Programmable voltage-to-current conversion.
- Line impedance matching.
Q & A
- What is the AD5242BRUZ10-RL7 used for?
The AD5242BRUZ10-RL7 is used as a digital potentiometer, providing precise and programmable resistance adjustments in various applications.
- What are the available resistance values for the AD5242?
The AD5242 is available with fixed A-to-B terminal resistances of 10 kΩ, 100 kΩ, or 1 MΩ.
- What is the temperature coefficient of the AD5242?
The nominal temperature coefficient of the AD5242 is 30 ppm/°C.
- What is the operating temperature range of the AD5242?
The AD5242 operates over an extended temperature range of −40°C to +105°C.
- What type of interface does the AD5242 use?
The AD5242 uses an I2C-compatible, 2-wire serial data interface.
- Does the AD5242 have any extra programmable outputs?
Yes, the AD5242 has two 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 some common applications of the AD5242?
Common applications include multimedia, video, and audio systems, communications, mechanical potentiometer replacement, instrumentation, and line impedance matching.
- What package types are available for the AD5242?
The AD5242 is available in 14-lead SOIC, 16-lead SOIC, 14-lead TSSOP, and 16-lead TSSOP packages.
- Can the AD5242 be used in high-temperature environments?
Yes, the AD5242 is guaranteed to operate over an extended temperature range of −40°C to +105°C.
