Overview
The AD5293BRUZ-50-RL7, produced by Analog Devices Inc., is a single-channel, 1024-position digital potentiometer. This device offers enhanced resolution, solid-state reliability, and superior low temperature coefficient performance, making it an ideal replacement for mechanical potentiometers. It operates with a nominal resistance of 50 kΩ and features a calibrated 1% nominal resistor tolerance, ensuring high precision in various applications. The AD5293 supports both single-supply operation from 9 V to 33 V and dual-supply operation from ±9 V to ±16.5 V, and it includes an SPI-compatible serial interface for easy control and wiper setting readback.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 1024 | |
| Nominal Resistance | 50 kΩ | |
| Resistor Tolerance | <1% | |
| Temperature Coefficient (Rheostat Mode) | 35 ppm/°C | |
| Temperature Coefficient (Voltage Divider Mode) | 5 ppm/°C | |
| Single-Supply Voltage Range | 9 V to 33 V | |
| Dual-Supply Voltage Range | ±9 V to ±16.5 V | |
| Logic Supply Range | 2.7 V to 5.5 V | |
| Package Type | 14-Lead TSSOP | |
| Operating Temperature Range | −40°C to +105°C |
Key Features
- High resolution with 1024 positions.
- Calibrated 1% nominal resistor tolerance for high precision.
- Low temperature coefficient: 35 ppm/°C in rheostat mode and 5 ppm/°C in voltage divider mode.
- Supports single-supply and dual-supply operations.
- SPI-compatible serial interface for easy control and wiper setting readback.
- Compact 14-lead TSSOP package.
- Guaranteed operation over the extended industrial temperature range of −40°C to +105°C.
Applications
- Mechanical potentiometer replacement.
- Instrumentation: gain and offset adjustment.
- Programmable voltage-to-current conversion.
- Programmable filters, delays, and time constants.
- Programmable power supply.
- Low resolution DAC replacements.
- Sensor calibration.
Q & A
- What is the nominal resistance of the AD5293BRUZ-50-RL7?
The nominal resistance of the AD5293BRUZ-50-RL7 is 50 kΩ.
- What is the temperature coefficient of the AD5293 in rheostat mode?
The temperature coefficient in rheostat mode is 35 ppm/°C.
- What is the operating temperature range of the AD5293?
The operating temperature range is −40°C to +105°C.
- Does the AD5293 support dual-supply operation?
- What type of interface does the AD5293 use for control?
The AD5293 uses an SPI-compatible serial interface.
- What is the package type of the AD5293?
The package type is a 14-lead TSSOP.
- What are some common applications of the AD5293?
Common applications include mechanical potentiometer replacement, instrumentation, programmable voltage-to-current conversion, and sensor calibration.
- What is the logic supply range for the AD5293?
The logic supply range is from 2.7 V to 5.5 V.
- Does the AD5293 have wiper setting readback capability?
- What is the maximum SCLK frequency for the AD5293?
The maximum SCLK frequency is 50 MHz.
