Overview
The AD5242BRUZ100, 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 mechanical 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 | - |
| Total Resistance | 10 kΩ, 100 kΩ, 1 MΩ | Ω |
| Temperature Coefficient | 30 ppm/°C | ppm/°C |
| Supply Voltage | Single-supply: 2.7 V to 5.5 V, Dual-supply: ±2.7 V | V |
| Interface | I2C-compatible, 2-wire serial data interface | - |
| Operating Temperature Range | −40°C to +105°C | °C |
| Package Type | 16-lead TSSOP | - |
| Channel-to-Channel Matching Tolerance | 1% | % |
Key Features
- 256-position digital potentiometer with internal power-on midscale preset
- Low temperature coefficient of 30 ppm/°C
- I2C-compatible interface with readback capability
- 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 equipment
- Mechanical potentiometer replacement
- Instrumentation: gain and offset adjustment
- Programmable voltage-to-current conversion
- Line impedance matching
Q & A
- What is the AD5242BRUZ100 used for?
The AD5242BRUZ100 is used as a digital potentiometer, providing 256-position resistance adjustments, similar to a mechanical potentiometer or variable resistor.
- What are the available total resistance values for the AD5242BRUZ100?
The AD5242BRUZ100 is available with total resistance values of 10 kΩ, 100 kΩ, and 1 MΩ.
- What is the temperature coefficient of the AD5242BRUZ100?
The temperature coefficient of the AD5242BRUZ100 is 30 ppm/°C.
- What is the operating voltage range for the AD5242BRUZ100?
The AD5242BRUZ100 operates on a single-supply voltage from 2.7 V to 5.5 V or a dual-supply voltage of ±2.7 V.
- What interface does the AD5242BRUZ100 use for programming?
The AD5242BRUZ100 uses an I2C-compatible, 2-wire serial data interface for programming.
- What is the operating temperature range of the AD5242BRUZ100?
The AD5242BRUZ100 operates over an extended temperature range of −40°C to +105°C.
- What package types are available for the AD5242BRUZ100?
The AD5242BRUZ100 is available in 16-lead TSSOP and 16-lead SOIC packages.
- Does the AD5242BRUZ100 have programmable logic outputs?
Yes, the AD5242BRUZ100 has two extra programmable logic outputs available.
- What is the channel-to-channel matching tolerance for the AD5242BRUZ100?
The channel-to-channel matching tolerance for the AD5242BRUZ100 is 1%.
- Can the AD5242BRUZ100 be used for mechanical potentiometer replacement?
Yes, the AD5242BRUZ100 can be used as a replacement for mechanical potentiometers in various applications.
