Overview
The AD5270BRMZ-50-RL7, produced by Analog Devices Inc., is a single-channel digital rheostat that offers high-performance variable resistor functionality combined with nonvolatile memory. This device is part of the AD5270/AD5271 series, which features 1024- or 256-position resolution, making it suitable for precision calibration and tolerance matching applications. The AD5270BRMZ-50-RL7 operates with a nominal resistance of 50 kΩ and ensures less than 1% end-to-end resistor tolerance error, enhancing its reliability in various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 1024 positions | |
| Nominal Resistance | 50 kΩ | |
| Resistor Tolerance Error | ±1% | |
| Temperature Coefficient | 5 ppm/°C | |
| Supply Voltage (Single-Supply) | 2.7 V to 5.5 V | V |
| Supply Voltage (Dual-Supply) | ±2.5 V to ±2.75 V | V |
| Interface | SPI-compatible | |
| Memory Type | 50-times programmable (50-TP) nonvolatile memory | |
| Package Type | 10-lead MSOP | |
| Operating Temperature Range | −40°C to +125°C | °C |
Key Features
- Single-channel, 1024-position resolution for precise control.
- Maximum ±1% nominal resistor tolerance error, ensuring high accuracy.
- 50-times programmable (50-TP) nonvolatile memory for storing wiper positions.
- SPI-compatible interface for easy control and readback of wiper settings.
- Low temperature coefficient of 5 ppm/°C in rheostat mode.
- Compact 10-lead MSOP package.
- Extended industrial temperature range operation from −40°C to +125°C.
Applications
The AD5270BRMZ-50-RL7 is suitable for various applications requiring precise and stable resistance settings, such as:
- Precision calibration and tolerance matching.
- Open-loop applications where knowledge of absolute resistance is critical.
- Rheostat mode applications requiring low temperature coefficients.
- Industrial control systems and automation.
- Aerospace and defense systems where high reliability is essential.
Q & A
- What is the nominal resistance of the AD5270BRMZ-50-RL7?
The nominal resistance of the AD5270BRMZ-50-RL7 is 50 kΩ. - What is the maximum resistor tolerance error of the AD5270BRMZ-50-RL7?
The maximum resistor tolerance error is ±1%. - What type of memory does the AD5270BRMZ-50-RL7 have?
The AD5270BRMZ-50-RL7 has 50-times programmable (50-TP) nonvolatile memory. - What is the operating temperature range of the AD5270BRMZ-50-RL7?
The operating temperature range is from −40°C to +125°C. - What interface does the AD5270BRMZ-50-RL7 use for communication?
The AD5270BRMZ-50-RL7 uses an SPI-compatible interface. - How many positions can the AD5270BRMZ-50-RL7 be set to?
The AD5270BRMZ-50-RL7 can be set to 1024 positions. - What is the package type of the AD5270BRMZ-50-RL7?
The package type is a 10-lead MSOP. - Does the AD5270BRMZ-50-RL7 require an external voltage supply for programming the 50-TP memory?
No, the AD5270BRMZ-50-RL7 does not require an external voltage supply for programming the 50-TP memory. - How long does it take to store data in the 50-TP memory?
Storing data in the 50-TP memory takes approximately 350 ms. - What is the temperature coefficient of the AD5270BRMZ-50-RL7 in rheostat mode?
The temperature coefficient in rheostat mode is 5 ppm/°C.
