AD5259EVAL: Nonvolatile, I²C Compatible 256-Position, Digital Potentiometer
The AD5259 provides a compact, nonvolatile LFCSP-10 (3 mm x 3 mm) or MSOP-10 (3 mm x 4.9 mm) packaged solution for 256-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers1 or variable resistors, but with enhanced resolution and solid-state reliability.
The wiper settings are controllable through an I²C-compatible digital interface that is also used to read back the wiper register and EEPROM content. Resistor tolerance is also stored within EEPROM, providing an end-to-end tolerance accuracy of 0.1%.
A separate VLOGIC pin delivers increased interface flexibility. For users who need multiple parts on one bus, Address Bit AD0 and Address Bit AD1 allow up to four devices on the same bus
产品应用领域 Applications
- LCD panel VCOM adjustment
- LCD panel brightness and contrast control
- Mechanical potentiometer replacement in new designs
- Programmable power supplies
- RF amplifier biasing
- Automotive electronics adjustment
- Gain control and offset adjustment
- Fiber to the home systems
- Electronics level settings
AD5259EVAL 特点
- # Channels: 1
- # Positions: 256
- Memory Type: nonvolatile
- Interface: I²C
- Resistor Values (kOhm): 5, 10, 50, 100
- Voltage Range (V): +5.5 V
- Supply Current (µA): 3 µA
- Temp. Range -40°C to +85°C
- Absolute Tempco (ppm/°C): 300
- VLOGIC Pin Provides Increased Interface flexibility
AD5259EVAL 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD5259BCPZ10-R7 | 量产 | 10 ld LFCSP (3x3mm) | 10 | 汽车级 |
| AD5259BCPZ100-R7 | 量产 | 10 ld LFCSP (3x3mm) | 10 | 汽车级 |
| AD5259BCPZ5-R7 | 量产 | 10 ld LFCSP (3x3mm) | 10 | 汽车级 |
| AD5259BCPZ50-R7 | 量产 | 10 ld LFCSP (3x3mm) | 10 | 汽车级 |
| AD5259BRMZ10 | 量产 | 10 ld MSOP | 10 | 汽车级 |
| AD5259BRMZ10-R7 | 量产 | 10 ld MSOP | 10 | 汽车级 |
| AD5259BRMZ100 | 量产 | 10 ld MSOP | 10 | 汽车级 |
| AD5259BRMZ100-R7 | 量产 | 10 ld MSOP | 10 | 汽车级 |
| AD5259BRMZ5 | 量产 | 10 ld MSOP | 10 | 汽车级 |
| AD5259BRMZ5-R7 | 量产 | 10 ld MSOP | 10 | 汽车级 |
| AD5259BRMZ50 | 量产 | 10 ld MSOP | 10 | 汽车级 |
| AD5259BRMZ50-R7 | 量产 | 10 ld MSOP | 10 | 汽车级 |
| AD5259EVAL | 量产 | 评估板 | 16 | 待定 |
