Overview
The AD5270BCPZ-20-RL7 is a single-channel, 1024-position digital rheostat produced by Analog Devices Inc. This device combines industry-leading variable resistor performance with nonvolatile memory (NVM) in a compact package. It is designed to offer high precision and reliability, making it suitable for a variety of applications that require adjustable resistance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 1024 positions | - |
| Nominal Resistance | 20 kΩ | kΩ |
| Nominal Resistor Tolerance Error | ±1% | % |
| 50-Times Programmable (50-TP) Memory | Yes | - |
| Rheostat Mode Temperature Coefficient | 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 × 3 mm × 0.8 mm) | - |
| Operating Temperature Range | −40°C to +125°C | °C |
Key Features
- Single-channel, 1024-position resolution
- Maximum ±1% nominal resistor tolerance error
- 50-times programmable (50-TP) wiper memory
- Rheostat mode temperature coefficient: 5 ppm/°C
- 2.7 V to 5.5 V single-supply operation and ±2.5 V to ±2.75 V dual-supply operation
- SPI-compatible interface
- Wiper setting readback
- Power on refreshed from 50-TP memory
- Compact package options: 10-lead LFCSP and 10-lead MSOP
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 AD5270BCPZ-20-RL7?
The AD5270BCPZ-20-RL7 has a resolution of 1024 positions.
- What is the nominal resistance of the AD5270BCPZ-20-RL7?
The nominal resistance is 20 kΩ.
- What is the nominal resistor tolerance error of the AD5270BCPZ-20-RL7?
The nominal resistor tolerance error is ±1%.
- Does the AD5270BCPZ-20-RL7 have nonvolatile memory?
Yes, it has 50-times programmable (50-TP) wiper memory.
- What is the temperature coefficient of the AD5270BCPZ-20-RL7 in rheostat mode?
The temperature coefficient is 5 ppm/°C.
- What are the supply voltage ranges for the AD5270BCPZ-20-RL7?
The device operates from 2.7 V to 5.5 V in single-supply mode and ±2.5 V to ±2.75 V in dual-supply mode.
- What type of interface does the AD5270BCPZ-20-RL7 use?
The device uses an SPI-compatible interface.
- What package types are available for the AD5270BCPZ-20-RL7?
The device is available in 10-lead LFCSP and 10-lead MSOP packages.
- What is the operating temperature range of the AD5270BCPZ-20-RL7?
The operating temperature range is −40°C to +125°C.
- What are some common applications of the AD5270BCPZ-20-RL7?
Common applications include mechanical potentiometer replacements, op-amp variable gain control, instrumentation, programmable voltage-to-current conversions, and sensor calibration.
