Overview
The AD5270BRMZ-20-RL7, produced by Analog Devices Inc., is a single-channel digital potentiometer that offers high-performance variable resistor functionality combined with nonvolatile memory. This device is part of the AD5270/AD5271 series, known for their industry-leading variable resistor performance and compact packaging. The AD5270BRMZ-20-RL7 is particularly suited for applications requiring precise and programmable resistance settings.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 1024 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 | Nonvolatile, 50-times programmable (50-TP) |
| Package | 10-lead MSOP (3 mm × 4.9 mm × 1.1 mm) |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- High-resolution digital potentiometer with 1024 positions.
- Low resistor tolerance error of less than 1%.
- Nonvolatile memory with 50-times programmable (50-TP) capability.
- SPI-compatible digital interface for wiper setting control.
- No external voltage supply required for fuse blow and permanent programming.
- Compact packaging in 10-lead MSOP and LFCSP options.
- Extended industrial temperature range operation from −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.
Q & A
- What is the resolution of the AD5270BRMZ-20-RL7?
The AD5270BRMZ-20-RL7 has a resolution of 1024 positions.
- What are the nominal resistance values available for this device?
The nominal resistance values available are 20 kΩ, 50 kΩ, and 100 kΩ.
- What is the temperature coefficient of the AD5270BRMZ-20-RL7?
The temperature coefficient is 5 ppm/°C.
- What type of interface does the AD5270BRMZ-20-RL7 use?
The device uses an SPI-compatible digital interface.
- Does the AD5270BRMZ-20-RL7 require an external voltage supply for programming?
No, it does not require an external voltage supply for fuse blow and permanent programming.
- What is the operating temperature range of the AD5270BRMZ-20-RL7?
The operating temperature range is from −40°C to +125°C.
- What types of packages are available for the AD5270BRMZ-20-RL7?
The device is available in 10-lead MSOP and LFCSP packages.
- What is the memory type and programmability of the AD5270BRMZ-20-RL7?
The device features nonvolatile memory with 50-times programmable (50-TP) capability.
- Can the wiper settings be read back on the AD5270BRMZ-20-RL7?
Yes, the wiper settings can be read back through the SPI interface.
- What are some common applications of the AD5270BRMZ-20-RL7?
Common applications include mechanical potentiometer replacements, variable gain control, instrumentation adjustments, and programmable power supply applications.
