Overview
The AD5242BRUZ1M-REEL7, manufactured by Analog Devices Inc., is a dual-channel, 256-position, digitally controlled variable resistor (VR) device. This digital potentiometer functions similarly to a mechanical potentiometer, trimmer, or variable resistor, offering a completely programmable resistance between the A terminal and the wiper, or the B terminal and the wiper. The device is available in a 16-lead TSSOP package and operates over an extended temperature range of −40°C to +105°C. It features an I²C-compatible, 2-wire serial data interface and includes extra programmable logic outputs. The AD5242BRUZ1M-REEL7 is suitable for various applications requiring precise and programmable resistance control.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 256 | - |
| End-to-End Resistance | 1 MΩ | Ω |
| Temperature Coefficient | 30 ppm/°C | ppm/°C |
| Supply Voltage Range | 2.7 V to 5.5 V, ±2.3 V to ±2.7 V | V |
| Interface | I²C-compatible, 2-wire serial bus | - |
| Package Type | 16-lead TSSOP | - |
| Operating Temperature Range | −40°C to +105°C | °C |
| Power Dissipation | 0.5 to 250 µW | µW |
| Logic Output High (O1 and O2) | 4 V (ISOURCE = 40 µA) | V |
| Output Capacitance | 3 to 8 pF | pF |
Key Features
- 256-position resolution for precise control
- Linear track taper for accurate and predictable performance
- I²C-compatible, 2-wire serial data interface with readback capability
- Extra programmable logic outputs for driving digital loads, logic gates, LED drivers, and analog switches
- Self-contained shutdown feature
- Internal power-on midscale preset
- RoHS compliant
- Extended temperature range: −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-REEL7 used for?
The AD5242BRUZ1M-REEL7 is used as a digitally controlled variable resistor, similar to a mechanical potentiometer, trimmer, or variable resistor, in various applications requiring precise resistance control.
- What is the resolution of the AD5242BRUZ1M-REEL7?
The device has a 256-position resolution.
- What are the available end-to-end resistance values for the AD5242BRUZ1M-REEL7?
The available end-to-end resistance values are 10 kΩ, 100 kΩ, and 1 MΩ, with the AD5242BRUZ1M-REEL7 specifically having a 1 MΩ end-to-end resistance.
- What is the temperature coefficient of the AD5242BRUZ1M-REEL7?
The temperature coefficient is 30 ppm/°C.
- What is the supply voltage range for the AD5242BRUZ1M-REEL7?
The supply voltage range is from 2.7 V to 5.5 V for single-supply operation and ±2.3 V to ±2.7 V for dual-supply operation.
- What interface does the AD5242BRUZ1M-REEL7 use?
The device uses an I²C-compatible, 2-wire serial bus interface.
- What package type is the AD5242BRUZ1M-REEL7 available in?
The device is available in a 16-lead TSSOP package.
- What is the operating temperature range of the AD5242BRUZ1M-REEL7?
The operating temperature range is from −40°C to +105°C.
- Does the AD5242BRUZ1M-REEL7 have any additional programmable outputs?
Yes, it has two extra programmable logic outputs available.
- Is the AD5242BRUZ1M-REEL7 RoHS compliant?
Yes, the device is RoHS compliant.
