Overview
The AD5259BRMZ100, produced by Analog Devices Inc., is a nonvolatile digital potentiometer that offers a compact solution for 256-position adjustment applications. This device is packaged in a 10-lead MSOP (3 mm x 4.9 mm) and performs the same electronic adjustment function as mechanical potentiometers or variable resistors, but with enhanced resolution and solid-state reliability. The AD5259 is part of the digital potentiometer family, also known as VR (variable resistor) or RDAC, and is designed to provide high accuracy and reliability in various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | MSOP-10 (3 mm x 4.9 mm) | |
| Positions | 256 | |
| End-to-end Resistance | 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | Ω |
| Resistance Tolerance | ±0.1% (stored in EEPROM) | % |
| Interface | I²C-compatible | |
| VLOGIC Pin | Provides increased interface flexibility | |
| Power Supply Range | 3 V to 5 V | V |
| Operating Temperature | −40°C to +125°C | °C |
| Data Retention | 100 years at 55°C | years |
| Power-on EEPROM Refresh Time | < 1 ms | ms |
Key Features
- Nonvolatile memory maintains wiper settings.
- Compact MSOP-10 package.
- I²C-compatible digital interface.
- VLOGIC pin for increased interface flexibility.
- Software write protect command.
- Address Decode Pins (AD0 and AD1) allow up to four devices on the same bus.
- High accuracy with 0.1% end-to-end resistance tolerance stored in EEPROM.
- Wide operating temperature range: −40°C to +125°C.
- Single supply operation: 3 V to 5 V.
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.
Q & A
- What is the package type of the AD5259BRMZ100?
The AD5259BRMZ100 is packaged in a 10-lead MSOP (3 mm x 4.9 mm).
- How many positions does the AD5259BRMZ100 offer?
The AD5259BRMZ100 offers 256 positions.
- What are the available end-to-end resistance values for the AD5259BRMZ100?
The available end-to-end resistance values are 5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the accuracy of the resistance tolerance in the AD5259BRMZ100?
The resistance tolerance is ±0.1%, stored in EEPROM.
- What type of interface does the AD5259BRMZ100 use?
The AD5259BRMZ100 uses an I²C-compatible digital interface.
- What is the purpose of the VLOGIC pin in the AD5259BRMZ100?
The VLOGIC pin provides increased interface flexibility.
- What is the operating temperature range of the AD5259BRMZ100?
The operating temperature range is −40°C to +125°C.
- How long does the AD5259BRMZ100 retain its data?
The AD5259BRMZ100 retains its data for 100 years at 55°C.
- What is the power-on EEPROM refresh time for the AD5259BRMZ100?
The power-on EEPROM refresh time is less than 1 ms.
- Can multiple AD5259BRMZ100 devices be used on the same bus?
Yes, up to four devices can be used on the same bus using the Address Decode Pins (AD0 and AD1).
