Overview
The AD5258BRMZ100, manufactured by Analog Devices Inc., is a nonvolatile, I2C-compatible 64-position digital potentiometer. This device provides a compact solution for adjustment applications, packaged in a 3 mm × 4.9 mm MSOP-10 package. It functions similarly to mechanical potentiometers or variable resistors but offers enhanced resolution and solid-state reliability. The AD5258 is controlled through an I2C-compatible digital interface, allowing for precise adjustment and reading of the wiper register and EEPROM content.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 64 | - |
| End-to-End Resistance | 100 kΩ | Ω |
| Resistance Tolerance | 0.1% | - |
| Operating Temperature | -40°C to +85°C | °C |
| Supply Voltage Range | 2.7 V to 5.5 V | V |
| Logic Supply Voltage Range | 2.7 V to 5.5 V | V |
| Power-on EEPROM Refresh Time | <1 ms | ms |
| Data Retention | 100 years at 55°C | - |
| Package Type | MSOP-10 | - |
Key Features
- Nonvolatile memory maintains wiper settings.
- I2C-compatible digital interface for controlling and reading wiper settings and EEPROM content.
- Software write protect command to secure data.
- Address Decode Pins (AD0 and AD1) allow up to four devices on the same bus.
- Separate VLOGIC pin for increased interface flexibility.
- High accuracy with 0.1% end-to-end resistance tolerance stored in EEPROM.
- Compact MSOP-10 package (3 mm × 4.9 mm).
Applications
- LCD panel VCOM adjustment and brightness/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.
- Audio equipment (volume control, tone adjustments).
- Consumer electronics (volume, brightness, temperature adjustments).
- Motor control (speed, torque adjustments).
- Power management.
Q & A
- What is the primary function of the AD5258BRMZ100?
The AD5258BRMZ100 functions as a digital potentiometer, simulating the behavior of traditional analog potentiometers or variable resistors with enhanced resolution and solid-state reliability.
- What is the number of positions available in the AD5258BRMZ100?
The device has 64 positions.
- What is the end-to-end resistance of the AD5258BRMZ100?
The end-to-end resistance is 100 kΩ.
- What is the operating temperature range of the AD5258BRMZ100?
The operating temperature range is -40°C to +85°C.
- How is the AD5258BRMZ100 controlled?
The device is controlled through an I2C-compatible digital interface.
- What is the significance of the VLOGIC pin in the AD5258BRMZ100?
The VLOGIC pin provides increased interface flexibility.
- Can multiple AD5258BRMZ100 devices be used on the same bus?
- What is the data retention period of the AD5258BRMZ100?
The data retention period is typically 100 years at 55°C.
- What are some common applications of the AD5258BRMZ100?
Common applications include LCD panel adjustments, mechanical potentiometer replacement, programmable power supplies, RF amplifier biasing, and automotive electronics adjustment.
- Is the AD5258BRMZ100 RoHS compliant?
- What is the package type of the AD5258BRMZ100?
The package type is MSOP-10 (3 mm × 4.9 mm).
