Overview
The AD5270BCPZ-100-RL7, produced by Analog Devices Inc., is a single-channel digital rheostat that offers high-performance variable resistor functionality combined with nonvolatile memory (NVM). This device is part of the AD5270/AD5271 series, which features 1024- or 256-position resolution, making it suitable for a wide range of precision applications. The AD5270BCPZ-100-RL7 operates with a nominal resistance of 100 kΩ and boasts a maximum ±1% nominal resistor tolerance error, ensuring high accuracy and reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 1024 positions | - |
| Nominal Resistance | 100 kΩ | kΩ |
| Nominal Resistor Tolerance Error | ±1% | % |
| Temperature Coefficient (Rheostat Mode) | 5 ppm/°C | 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 | - |
| Package Type | 10-lead LFCSP (3 mm x 3 mm x 0.8 mm) | - |
| Operating Temperature Range | −40°C to +125°C | °C |
Key Features
- Single-channel, 1024-position resolution for precise control.
- 50-times programmable (50-TP) wiper memory for permanent settings.
- Maximum ±1% nominal resistor tolerance error for high accuracy.
- Rheostat mode temperature coefficient of 5 ppm/°C for stability.
- SPI-compatible interface for easy digital control.
- Wiper setting readback and power-on refresh from 50-TP memory.
- 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.
Q & A
- What is the nominal resistance of the AD5270BCPZ-100-RL7?
The nominal resistance of the AD5270BCPZ-100-RL7 is 100 kΩ.
- What is the resolution of the AD5270BCPZ-100-RL7?
The resolution is 1024 positions.
- What is the maximum nominal resistor tolerance error?
The maximum nominal resistor tolerance error is ±1%.
- What type of interface does the AD5270BCPZ-100-RL7 use?
The device uses an SPI-compatible interface.
- What is the operating temperature range of the AD5270BCPZ-100-RL7?
The operating temperature range is −40°C to +125°C.
- Does the AD5270BCPZ-100-RL7 require an external voltage supply for permanent programming?
No, it does not require an external voltage supply for fuse blow and permanent programming.
- How many times can the wiper memory be programmed?
The wiper memory can be programmed 50 times (50-TP).
- What is the temperature coefficient in rheostat mode?
The temperature coefficient in rheostat mode is 5 ppm/°C.
- What are some common applications of the AD5270BCPZ-100-RL7?
Common applications include mechanical potentiometer replacements, op-amp variable gain control, instrumentation adjustments, and sensor calibration.
- What package type is the AD5270BCPZ-100-RL7 available in?
The device is available in a 10-lead LFCSP package (3 mm x 3 mm x 0.8 mm).
