Overview
The AD5242BRUZ1M from Analog Devices Inc. is a dual-channel, 256-position, digitally controlled variable resistor (VR) device. This component functions as a digital potentiometer, trimmer, or variable resistor, offering a completely programmable value of resistance 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 |
|---|---|---|
| Number of Positions | 256 | - |
| Fixed A-to-B Terminal Resistance | 10 kΩ, 100 kΩ, 1 MΩ | - |
| Channel-to-Channel Matching Tolerance | 1% | - |
| Temperature Coefficient | 30 ppm/°C | - |
| Supply Voltage Range (Single-Supply) | 2.7 V to 5.5 V | V |
| Supply Voltage Range (Dual-Supply) | ±2.7 V | V |
| Operating Temperature Range | −40°C to +105°C | °C |
| Package Type | 16-Lead TSSOP | - |
Key Features
- 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
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 AD5242BRUZ1M used for? The AD5242BRUZ1M is used as a digital potentiometer, trimmer, or variable resistor in various applications requiring precise and programmable resistance adjustments.
- How many positions does the AD5242BRUZ1M have? The AD5242BRUZ1M has 256 positions.
- What are the available fixed A-to-B terminal resistances for the AD5242BRUZ1M? The available resistances are 10 kΩ, 100 kΩ, and 1 MΩ.
- What is the temperature coefficient of the AD5242BRUZ1M? The temperature coefficient is 30 ppm/°C.
- What is the operating temperature range of the AD5242BRUZ1M? The operating temperature range is −40°C to +105°C.
- How is the AD5242BRUZ1M programmed? The AD5242BRUZ1M is programmed via an I²C-compatible, 2-wire serial data interface.
- Does the AD5242BRUZ1M have any additional programmable outputs? Yes, it has two extra programmable logic outputs.
- What are some common applications of the AD5242BRUZ1M? Common applications include multimedia, video, and audio systems, communications equipment, mechanical potentiometer replacement, instrumentation, and line impedance matching.
- What package types are available for the AD5242BRUZ1M? The AD5242BRUZ1M is available in 16-Lead TSSOP and 16-Lead SOIC packages.
- Does the AD5242BRUZ1M have a shutdown feature? Yes, it has a self-contained shutdown feature.
