Overview
The AD5293BRUZ-20, produced by Analog Devices Inc., is a single-channel, 1024-position digital potentiometer. This device offers high precision and reliability, making it suitable for a variety of applications that require precise electronic adjustment. The AD5293 performs the same function as a mechanical potentiometer but with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance. It is capable of operating at high voltages and supports both single-supply and dual-supply operations.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Nominal Resistance | RAB | - | - | 20 kΩ | - | |
| Resistor Tolerance | - | - | - | ±1% | - | |
| Temperature Coefficient (Rheostat Mode) | - | - | - | 35 ppm/°C | - | |
| Temperature Coefficient (Voltage Divider Mode) | - | - | - | 5 ppm/°C | - | |
| Single-Supply Power Range | VDD | VSS = 0 V | 9 V | - | 33 V | |
| Dual-Supply Power Range | VDD/VSS | - | ±9 V | - | ±16.5 V | |
| Operating Temperature Range | TA | - | -40°C | - | +105°C | |
| Package Type | - | - | - | 14-Lead TSSOP | - |
Key Features
- Single-channel, 1024-position resolution
- Calibrated 1% nominal resistor tolerance (resistor performance mode)
- Rheostat mode temperature coefficient: 35 ppm/°C, Voltage divider temperature coefficient: 5 ppm/°C
- Supports single-supply operation (9 V to 33 V) and dual-supply operation (±9 V to ±16.5 V)
- SPI-compatible serial interface
- Wiper setting readback capability
- Compact 14-lead TSSOP package
- Guaranteed operation over the extended industrial temperature range of −40°C to +105°C
Applications
The AD5293 is suitable for various applications requiring precise electronic adjustment, such as:
- Precision calibration and tolerance matching
- Open-loop applications
- Audio and video equipment
- Industrial control systems
- Medical devices
- Aerospace and defense systems
Q & A
- What is the nominal resistance of the AD5293BRUZ-20?
The nominal resistance of the AD5293BRUZ-20 is 20 kΩ.
- What is the resistor tolerance of the AD5293?
The resistor tolerance of the AD5293 is ±1%.
- What are the operating voltage ranges for the AD5293?
The AD5293 supports single-supply operation from 9 V to 33 V and dual-supply operation from ±9 V to ±16.5 V.
- What is the temperature coefficient in rheostat mode?
The temperature coefficient in rheostat mode is 35 ppm/°C.
- What is the package type of the AD5293?
The AD5293 is available in a 14-lead TSSOP package.
- What is the operating temperature range of the AD5293?
The AD5293 operates over the extended industrial temperature range of −40°C to +105°C.
- Does the AD5293 support SPI interface?
Yes, the AD5293 has an SPI-compatible serial interface.
- Can the wiper setting be read back on the AD5293?
Yes, the AD5293 has wiper setting readback capability.
- What are some common applications of the AD5293?
The AD5293 is commonly used in precision calibration, open-loop applications, audio and video equipment, industrial control systems, medical devices, and aerospace and defense systems.
- How many positions does the AD5293 digital potentiometer have?
The AD5293 digital potentiometer has 1024 positions.
