Overview
The AD5271BRMZ-100, produced by Analog Devices Inc., is a single-channel, 256-position digital rheostat. This device combines industry-leading variable resistor performance with nonvolatile memory (NVM) in a compact package. It is part of the AD5270/AD5271 series, which offers high precision and reliability, making it suitable for a variety of applications requiring adjustable resistance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 256 positions | |
| Nominal Resistance | 100 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 | 50-times programmable (50-TP) | |
| Package | 10-lead MSOP | |
| Operating Temperature Range | −40°C to +125°C | °C |
Key Features
- Single-channel, 256-position digital rheostat with high precision and low resistor tolerance error.
- 50-times programmable (50-TP) nonvolatile memory for wiper settings.
- SPI-compatible digital interface for controlling wiper settings.
- Unlimited adjustments allowed before programming the resistance value into the 50-TP memory.
- No external voltage supply required for fuse blow and permanent programming.
- Compact 10-lead MSOP package.
- Guaranteed operation over the extended industrial temperature range of −40°C to +125°C.
Applications
- Mechanical potentiometer replacements.
- Op-amp: variable gain control.
- Instrumentation: gain, offset adjustment.
- Programmable voltage-to-current conversions.
- Programmable filters, delays, time constants.
- Programmable power supply.
- Sensor calibration.
Q & A
- What is the resolution of the AD5271BRMZ-100?
The AD5271BRMZ-100 has a resolution of 256 positions.
- What is the nominal resistance of the AD5271BRMZ-100?
The nominal resistance is 100 kΩ.
- What is the resistor tolerance error of the AD5271BRMZ-100?
The resistor tolerance error is ±1%.
- What is the temperature coefficient of the AD5271BRMZ-100?
The temperature coefficient is 5 ppm/°C.
- What type of interface does the AD5271BRMZ-100 use?
The AD5271BRMZ-100 uses an SPI-compatible digital interface.
- How many times can the wiper settings be programmed permanently?
The wiper settings can be programmed permanently 50 times (50-TP).
- What is the operating temperature range of the AD5271BRMZ-100?
The operating temperature range is −40°C to +125°C.
- What type of package is the AD5271BRMZ-100 available in?
The AD5271BRMZ-100 is available in a 10-lead MSOP package.
- Does the AD5271BRMZ-100 require an external voltage supply for fuse blow and permanent programming?
No, it does not require an external voltage supply for fuse blow and permanent programming.
- What are some common applications of the AD5271BRMZ-100?
Common applications include mechanical potentiometer replacements, op-amp variable gain control, instrumentation adjustments, and sensor calibration.
