Overview
The AD5270BRMZ-100-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 a wide range of precision applications. The AD5270BRMZ-100-RL7 is particularly noted for its low resistor tolerance error and 50-times programmable (50-TP) wiper memory, ensuring consistent and reliable performance.
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 | 10-lead MSOP (3 mm x 4.9 mm x 1.1 mm) | - |
| Operating Temperature Range | −40°C to +125°C | °C |
Key Features
- Single-channel, 1024-position resolution for precise control.
- Low nominal resistor tolerance error of ±1%, ensuring high accuracy.
- 50-times programmable (50-TP) wiper memory for permanent settings.
- SPI-compatible interface for easy communication and control.
- Wiper setting readback capability for monitoring and adjustment.
- Power-on refresh from 50-TP memory to maintain consistent settings.
- Compact MSOP package for space-efficient designs.
- Extended industrial temperature range of −40°C to +125°C.
Applications
- Mechanical potentiometer replacements.
- Variable gain control in op-amp circuits.
- Gain and offset adjustment in instrumentation.
- Programmable voltage-to-current conversions.
- Programmable filters, delays, and time constants.
- Programmable power supply applications.
- Sensor calibration and adjustment.
Q & A
- What is the resolution of the AD5270BRMZ-100-RL7?
The AD5270BRMZ-100-RL7 has a resolution of 1024 positions.
- What is the nominal resistance of the AD5270BRMZ-100-RL7?
The nominal resistance is 100 kΩ.
- What is the temperature coefficient of the AD5270BRMZ-100-RL7 in rheostat mode?
The temperature coefficient is 5 ppm/°C.
- What is the supply voltage range for the AD5270BRMZ-100-RL7?
The device operates on a single-supply voltage of 2.7 V to 5.5 V or a dual-supply voltage of ±2.5 V to ±2.75 V.
- What interface does the AD5270BRMZ-100-RL7 use?
The device uses an SPI-compatible interface.
- How many times can the wiper position be programmed permanently?
The wiper position can be programmed permanently up to 50 times.
- What is the package type and dimensions of the AD5270BRMZ-100-RL7?
The device is packaged in a 10-lead MSOP package with dimensions of 3 mm x 4.9 mm x 1.1 mm.
- What is the operating temperature range of the AD5270BRMZ-100-RL7?
The operating temperature range is −40°C to +125°C.
- Can the AD5270BRMZ-100-RL7 replace mechanical potentiometers?
- Does the AD5270BRMZ-100-RL7 support wiper setting readback?
