Overview
The AD5252BRU100, 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 electronic adjustment functions similar to mechanical potentiometers, trimmers, and variable resistors. It operates with a single supply voltage range of 2.7 V to 5.5 V or a dual supply range of ±2.25 V to ±2.75 V, making it versatile for various applications. The AD5252BRU100 is packaged in a 14-pin TSSOP and is RoHS non-compliant.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 256 positions | |
| Resistor Value | 100 kΩ | |
| Supply Voltage Range (Single Supply) | 2.7 V to 5.5 V | V |
| Supply Voltage Range (Dual Supply) | ±2.25 V to ±2.75 V | V |
| Operating Temperature | −40°C to +105°C | °C |
| Package Type | 14-pin TSSOP | |
| Nonvolatile Memory Data Retention | 100 years (typical at TA = 55°C) | years |
| Wiper Resistance | 200 Ω (typical at VDD = 5 V) | Ω |
| Resistance Tolerance | ±20% (typical at TA = 25°C) | % |
| Temperature Coefficient of Resistance | 650 ppm/°C | ppm/°C |
Key Features
- Dual-channel operation with 256-position resolution per channel.
- Nonvolatile memory to store wiper settings with write protection.
- I2C compatible serial interface with direct read/write access to RDAC and EEMEM registers.
- Predefined linear increment/decrement commands and ±6 dB step change commands.
- Synchronous or asynchronous dual-channel update capability.
- Wiper setting readback and extra EEMEM for user-defined information.
- Single supply operation from 2.7 V to 5.5 V or dual supply operation from ±2.25 V to ±2.75 V.
- Low power consumption with typical power dissipation of 0.075 mW.
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 AD5252BRU100?
The AD5252BRU100 has a resolution of 256 positions per channel).
- What are the supply voltage ranges for the AD5252BRU100?
The device can operate with a single supply voltage range of 2.7 V to 5.5 V or a dual supply range of ±2.25 V to ±2.75 V).
- What is the operating temperature range of the AD5252BRU100?
The operating temperature range is −40°C to +105°C).
- What type of memory does the AD5252BRU100 use?
The device uses nonvolatile memory to store wiper settings).
- What is the typical data retention time for the nonvolatile memory?
The typical data retention time is 100 years at TA = 55°C).
- What is the wiper resistance of the AD5252BRU100?
The wiper resistance is typically 200 Ω at VDD = 5 V).
- What interface does the AD5252BRU100 use for communication?
The device uses an I2C compatible serial interface).
- Can the AD5252BRU100 perform synchronous or asynchronous updates?
Yes, the device can perform both synchronous and asynchronous dual-channel updates).
- What are some common applications of the AD5252BRU100?
Common applications include mechanical potentiometer replacement, general-purpose DAC replacement, LCD panel VCOM adjustment, and more).
- What is the package type of the AD5252BRU100?
The device is packaged in a 14-pin TSSOP).
