Overview
The AD5271BCPZ-20-RL7, manufactured by Analog Devices Inc., is a single-channel, 1024-position digital rheostat. This device combines industry-leading variable resistor performance with nonvolatile memory (NVM) in a compact package. It is designed to offer high precision and reliability, making it suitable for a variety of applications that require precise resistance control.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Nominal Resistance | 20 kΩ | kΩ | |
| Resolution | 1024 positions | ||
| Resistor Tolerance Error | ±1% | % | |
| Temperature Coefficient | 5 ppm/°C | ppm/°C | Rheostat mode |
| Supply Voltage | 2.7 V to 5.5 V | V | Single-supply operation |
| Package Type | 10-lead LFCSP (3mm x 3mm) | ||
| Operating Temperature Range | −40°C to +125°C | °C | Extended industrial temperature range |
| Interface | SPI-compatible | ||
| 50-TP Memory | 50 times programmable | Nonvolatile memory |
Key Features
- Single-channel, 1024-position digital rheostat with 256-position option in AD5270 model.
- Maximum ±1% nominal resistor tolerance error, ensuring high precision.
- 50-times programmable (50-TP) wiper memory for nonvolatile storage of resistance settings.
- Rheostat mode temperature coefficient of 5 ppm/°C.
- Operates on a single supply of 2.7 V to 5.5 V or dual supply of ±2.5 V to ±2.75 V for ac or bipolar operations.
- SPI-compatible digital interface for controlling wiper settings.
- Wiper setting readback capability.
- Power-on refresh from 50-TP memory.
- Compact packaging options including 10-lead LFCSP (3mm x 3mm) and 10-lead MSOP.
Applications
- Precision calibration and tolerance matching applications.
- Open-loop applications where high precision is required.
- Industrial control systems that need adjustable resistance.
- Aerospace and defense applications requiring high reliability and precision.
- Automotive systems that demand robust and precise resistance control.
- Medical devices requiring accurate and stable resistance settings.
Q & A
- What is the nominal resistance of the AD5271BCPZ-20-RL7?
The nominal resistance is 20 kΩ.
- What is the resolution of the AD5271BCPZ-20-RL7?
The resolution is 1024 positions.
- What is the resistor tolerance error of the AD5271BCPZ-20-RL7?
The resistor tolerance error is ±1%.
- What is the temperature coefficient of the AD5271BCPZ-20-RL7 in rheostat mode?
The temperature coefficient is 5 ppm/°C.
- What is the operating voltage range of the AD5271BCPZ-20-RL7?
The operating voltage range is 2.7 V to 5.5 V for single-supply operation.
- What type of interface does the AD5271BCPZ-20-RL7 use?
The device uses an SPI-compatible digital interface.
- Does the AD5271BCPZ-20-RL7 have nonvolatile memory?
Yes, it has 50-times programmable (50-TP) wiper memory.
- What is the package type of the AD5271BCPZ-20-RL7?
The package type is a 10-lead LFCSP (3mm x 3mm).
- What is the operating temperature range of the AD5271BCPZ-20-RL7?
The operating temperature range is −40°C to +125°C.
- Can the wiper settings be read back on the AD5271BCPZ-20-RL7?
Yes, the device supports wiper setting readback.
