Overview
The AD5271BRMZ-20, produced by Analog Devices Inc., is a single-channel, 256-position digital rheostat that combines industry-leading variable resistor performance with nonvolatile memory (NVM). This device is part of the AD5270/AD5271 series and is designed for seamless integration into various electronic designs, offering engineers the flexibility to achieve the desired resistance levels with ease. It is suitable for use in industrial control systems, medical devices, and consumer electronics, delivering superior performance and reliability.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Resolution | 256 positions | Nominal Resistance | 20 kΩ |
| Resistor Tolerance Error | ±1% | Temperature Coefficient | 5 ppm/°C |
| Supply Voltage (Single-Supply) | 2.7 V to 5.5 V | Supply Voltage (Dual-Supply) | ±2.5 V to ±2.75 V |
| Interface | SPI-compatible | Memory Type | Non-Volatile, 50-TP |
| Operating Temperature Range | −40°C to +125°C | Package Type | 10-Lead MSOP |
| Power Supply Current | 1 µA (typical) | Power Dissipation | 5.5 µW (typical) |
Key Features
- Single-channel, 256-position digital rheostat with nonvolatile memory (NVM)
- Industry-leading low resistor tolerance error of ±1%
- 50-times programmable (50-TP) wiper memory
- SPI-compatible digital interface for wiper setting control
- Wide operating voltage range: 2.7 V to 5.5 V single-supply, ±2.5 V to ±2.75 V dual-supply
- Compact 10-lead MSOP package
- Extended industrial temperature range: −40°C to +125°C
- No external voltage supply required for fuse blow and permanent programming
Applications
- Mechanical potentiometer replacements
- Op-amp variable gain control
- Instrumentation: gain and offset adjustment
- Programmable voltage-to-current conversions
- Programmable filters, delays, and time constants
- Programmable power supply
- Sensor calibration
- Proximity sensor adjustment
- Robot arm position control
- Battery charging optimization
Q & A
- Q: What is the nominal resistance of the AD5271BRMZ-20?
A: The nominal resistance of the AD5271BRMZ-20 is 20 kΩ.
- Q: What is the resistor tolerance error of the AD5271BRMZ-20?
A: The resistor tolerance error is ±1%.
- Q: What type of interface does the AD5271BRMZ-20 use?
A: The AD5271BRMZ-20 uses an SPI-compatible digital interface.
- Q: What is the operating temperature range of the AD5271BRMZ-20?
A: The operating temperature range is −40°C to +125°C.
- Q: What type of memory does the AD5271BRMZ-20 have?
A: The AD5271BRMZ-20 has nonvolatile memory (NVM) with 50-times programmable (50-TP) wiper memory.
- Q: What is the package type of the AD5271BRMZ-20?
A: The AD5271BRMZ-20 is available in a 10-lead MSOP package.
- Q: Does the AD5271BRMZ-20 require an external voltage supply for fuse blow and permanent programming?
A: No, the AD5271BRMZ-20 does not require an external voltage supply for fuse blow and permanent programming.
- Q: What are some common applications of the AD5271BRMZ-20?
A: Common applications include mechanical potentiometer replacements, op-amp variable gain control, instrumentation, programmable voltage-to-current conversions, and sensor calibration.
- Q: What is the warranty period for the AD5271BRMZ-20 when purchased from authorized distributors?
A: The warranty period can vary depending on the distributor, but it is typically 1 year for defects in materials and workmanship.
- Q: How can I ensure the authenticity of the AD5271BRMZ-20?
A: Ensure you purchase from authorized distributors who rigorously test and verify the credentials of original manufacturers and authorized agents.
