Overview
The AD5252BRUZ10, produced by Analog Devices Inc., is a dual-channel, I2C, nonvolatile memory, digitally controlled potentiometer. This device features 256 positions and is designed to perform the same electronic adjustment functions as mechanical potentiometers, trimmers, and variable resistors. It offers versatile programmability, including read/write access to RDAC and EEMEM registers, and supports various modes of operation such as increment/decrement of resistance and resistance changes in ±6 dB scales. The AD5252BRUZ10 is particularly useful for applications requiring precise and programmable resistance adjustments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 256 positions | - |
| Resistance Options | 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | - |
| Package | 14-Lead TSSOP | - |
| Supply Voltage (Single Supply) | 2.7 V to 5.5 V | V |
| Supply Voltage (Dual Supply) | ±2.25 V to ±2.75 V | V |
| Operating Temperature | –40°C to +105°C | °C |
| Data Retention | 100 years (typical at TA = 55°C) | - |
| EEMEM Rewrite Time | 540 µs (typical) | µs |
| Power-On Refresh Time | 300 µs (typical) | µs |
Key Features
- Nonvolatile memory stores wiper setting with write protection
- I2C-compatible serial interface
- Direct read/write access of RDAC and EEMEM registers
- Predefined linear increment/decrement commands and ±6 dB step change commands
- Synchronous or asynchronous dual-channel update
- Wiper setting readback
- 12 extra bytes in EEMEM for user-defined information
- Resistance tolerance stored in nonvolatile memory
- 4 MHz bandwidth for the 1 kΩ version
- 2 target address decoding bits allow operation of 4 devices
Applications
- Mechanical potentiometer replacement
- General-purpose DAC replacement
- LCD panel VCOM adjustment
- White LED brightness adjustment
- RF base station power amp bias control
- Programmable gain and offset control
- Programmable voltage-to-current conversion
- Programmable power supply
- Sensor calibrations
Q & A
- What is the resolution of the AD5252BRUZ10?
The AD5252BRUZ10 has a resolution of 256 positions.
- What are the available resistance options for the AD5252BRUZ10?
The AD5252BRUZ10 is available in 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ resistance options.
- What is the package type of the AD5252BRUZ10?
The AD5252BRUZ10 is packaged in a 14-Lead TSSOP.
- What is the operating temperature range of the AD5252BRUZ10?
The operating temperature range is –40°C to +105°C.
- How long does the EEMEM take to rewrite?
The EEMEM rewrite time is typically 540 µs.
- What is the power-on refresh time for the AD5252BRUZ10?
The power-on refresh time is typically 300 µs.
- Does the AD5252BRUZ10 support synchronous or asynchronous updates?
Yes, it supports both synchronous and asynchronous dual-channel updates.
- Can the AD5252BRUZ10 store user-defined information?
Yes, it has 12 extra bytes in EEMEM for storing user-defined information.
- What is the data retention period of the AD5252BRUZ10?
The data retention period is typically 100 years at TA = 55°C.
- What are some common applications of the AD5252BRUZ10?
Common applications include mechanical potentiometer replacement, general-purpose DAC replacement, LCD panel VCOM adjustment, and more.
