Overview
The AD5258BRMZ10, manufactured by Analog Devices Inc., is a nonvolatile digital potentiometer designed to provide a compact and reliable solution for 64-position adjustment applications. This device replaces traditional mechanical potentiometers and variable resistors with enhanced resolution and solid-state reliability. It is packaged in a 10-lead MSOP (3 mm × 4.9 mm) and features an I2C-compatible digital interface for controlling and reading back wiper settings and EEPROM content.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Taps | 64 | - |
| Resistance | 10 kΩ | Ω |
| Interface | I2C | - |
| Memory Type | Non-Volatile | - |
| Voltage - Supply | 2.7 V ~ 5.5 V | V |
| Operating Temperature | −40°C ~ 85°C | °C |
| Resistance Tolerance | ±30% | % |
| Temperature Coefficient | 200 ppm/°C | ppm/°C |
| Resistance - Wiper (Typ) | 75 Ω | Ω |
| Package | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | - |
Key Features
- Nonvolatile memory maintains wiper settings.
- 64-position digital potentiometer.
- Compact MSOP-10 (3 mm × 4.9 mm) package.
- I2C-compatible interface.
- VLOGIC pin provides increased interface flexibility.
- Resistance tolerance stored in EEPROM with 0.1% accuracy.
- Power-on EEPROM refresh time < 1 ms.
- Software write protect command.
- Address Decode Pins AD0 and AD1 allow up to four devices on the same bus.
- 100-year typical data retention at 55°C.
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.
Q & A
- What is the primary function of the AD5258BRMZ10?
The AD5258BRMZ10 is a nonvolatile digital potentiometer that performs the same electronic adjustment function as mechanical potentiometers or variable resistors but with enhanced resolution and solid-state reliability.
- What is the interface used for controlling the AD5258BRMZ10?
The device uses an I2C-compatible digital interface for controlling and reading back wiper settings and EEPROM content.
- What is the operating temperature range of the AD5258BRMZ10?
The operating temperature range is −40°C to +85°C.
- How many devices can be connected on the same bus using the AD5258BRMZ10?
Up to four devices can be connected on the same bus using the Address Decode Pins AD0 and AD1.
- What is the typical data retention time for the AD5258BRMZ10 at 55°C?
The typical data retention time is 100 years at 55°C.
- What is the resistance tolerance accuracy stored in the EEPROM?
The resistance tolerance accuracy stored in the EEPROM is 0.1%.
- What is the purpose of the VLOGIC pin in the AD5258BRMZ10?
The VLOGIC pin provides increased interface flexibility.
- Can the AD5258BRMZ10 be used in automotive applications?
- What are some common applications of the AD5258BRMZ10?
- What is the package type of the AD5258BRMZ10?
The device is packaged in a 10-lead MSOP (3 mm × 4.9 mm).
