Overview
The AD5291BRUZ-20-RL7, produced by Analog Devices Inc., is a single-channel digital potentiometer that offers high precision and versatility. This component is part of the AD5291 and AD5292 series, known for their industry-leading variable resistor performance and nonvolatile memory. The device is available in a compact 14-lead TSSOP package and operates over a wide voltage range, supporting both single and dual supply configurations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Nominal Resistance | 20 kΩ | kΩ |
| Resolution | 256 positions | - |
| Resistor Tolerance Error | ±1% | % |
| Temperature Coefficient (Rheostat Mode) | 35 ppm/°C | ppm/°C |
| Temperature Coefficient (Voltage Divider Mode) | 5 ppm/°C | ppm/°C |
| Supply Voltage (Single Supply) | +9 V to +33 V | V |
| Supply Voltage (Dual Supply) | ±9 V to ±16.5 V | V |
| Operating Temperature Range | −40°C to +105°C | °C |
| Package Type | 14-Lead TSSOP | - |
Key Features
- Single-channel, 256-position resolution
- 20 kΩ, 50 kΩ, and 100 kΩ nominal resistance options (20 kΩ for this specific model)
- Maximum ±1% nominal resistor tolerance error
- 20-times programmable wiper memory
- SPI-compatible serial interface
- Wiper setting readback
- Power-on refresh from 20-TP memory
- No external voltage supply required for fuse blow
Applications
The AD5291BRUZ-20-RL7 is suitable for various applications requiring precise and adjustable resistance, such as:
- Precision calibration and tolerance matching
- Open-loop applications
- Audio and video equipment
- Industrial control systems
- Medical devices
Q & A
- What is the nominal resistance of the AD5291BRUZ-20-RL7?
The nominal resistance is 20 kΩ. - What is the resolution of the AD5291BRUZ-20-RL7?
The resolution is 256 positions. - What is the maximum resistor tolerance error?
The maximum resistor tolerance error is ±1%. - What are the operating voltage ranges for the AD5291BRUZ-20-RL7?
The device operates from +9 V to +33 V in single supply mode and ±9 V to ±16.5 V in dual supply mode. - What is the operating temperature range of the AD5291BRUZ-20-RL7?
The operating temperature range is −40°C to +105°C. - What type of package does the AD5291BRUZ-20-RL7 come in?
The device is packaged in a 14-Lead TSSOP. - Does the AD5291BRUZ-20-RL7 require an external voltage supply for fuse blow?
No, it does not require an external voltage supply for fuse blow. - How many times can the wiper memory be programmed?
The wiper memory can be programmed 20 times. - What interface does the AD5291BRUZ-20-RL7 use for communication?
The device uses an SPI-compatible serial interface. - Can the wiper setting be read back?
Yes, the wiper setting can be read back.
