Overview
The AD5254BRUZ10-RL7 is a quad-channel, I2C, nonvolatile memory digital potentiometer produced by Analog Devices Inc. This component is designed to perform the same electronic adjustment functions as mechanical potentiometers, trimmers, and variable resistors. It features a 256-position resolution, making it highly versatile for various applications requiring precise digital control over resistance settings.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | TSSOP-20 |
| Number of Taps | 256 |
| Resistance Value | 10 kΩ |
| Temperature Coefficient (Typ) | 650 ppm/℃ |
| Precision | ±20% |
| Operating Temperature | –40°C to +105°C |
| Power Supply Range | Single-Supply: 2.7 V to 5.5 V, Dual-Supply: ±2.25 V to ±2.75 V |
| Input Logic High | 2.1 V (VDD = 2.7 V), 2.4 V (VDD = 5 V) |
| Input Capacitance | 5 pF |
Key Features
- Quad-channel configuration with 256-position resolution per channel
- I2C interface for communication with host controllers
- Nonvolatile memory for storing wiper settings
- Read/write access in RDAC and EEMEM registers
- Increment, decrement, and ±6 dB step changes in synchronous or asynchronous channel update mode
- Automatic restoration of settings at system power-on
- Extra EEMEM for storing user-defined information
Applications
- Mechanical potentiometer replacement
- Low resolution DAC replacement
- RGB LED backlight control
- White LED brightness adjustment
- RF base station power amp bias control
- Programmable gain and offset control
- Programmable attenuators
- Programmable voltage-to-current conversion
- Programmable power supply
- Programmable filters
- Sensor calibrations
Q & A
- What is the AD5254BRUZ10-RL7 used for?
The AD5254BRUZ10-RL7 is used as a digital potentiometer to replace mechanical potentiometers, trimmers, and variable resistors in various electronic applications. - What is the resolution of the AD5254BRUZ10-RL7?
The AD5254BRUZ10-RL7 has a 256-position resolution per channel. - What is the operating temperature range of the AD5254BRUZ10-RL7?
The operating temperature range is –40°C to +105°C. - What type of interface does the AD5254BRUZ10-RL7 use?
The AD5254BRUZ10-RL7 uses an I2C interface for communication with host controllers. - Does the AD5254BRUZ10-RL7 have nonvolatile memory?
Yes, the AD5254BRUZ10-RL7 has nonvolatile memory for storing wiper settings. - What are some common applications of the AD5254BRUZ10-RL7?
Common applications include mechanical potentiometer replacement, RGB LED backlight control, white LED brightness adjustment, and RF base station power amp bias control. - What is the package type of the AD5254BRUZ10-RL7?
The package type is TSSOP-20. - What is the typical temperature coefficient of the AD5254BRUZ10-RL7?
The typical temperature coefficient is 650 ppm/℃. - Can the AD5254BRUZ10-RL7 store user-defined information?
Yes, it has extra EEMEM for storing user-defined information such as memory data for other components or system identification information. - How does the AD5254BRUZ10-RL7 restore settings at power-on?
The AD5254BRUZ10-RL7 automatically restores the stored wiper settings to the RDAC registers at system power-on.
