Overview
The AD5293BRUZ-100, produced by Analog Devices Inc., is a single-channel, 1024-position digital potentiometer. This device offers enhanced resolution and solid-state reliability, making it an ideal replacement for mechanical potentiometers. It features a calibrated 1% nominal resistor tolerance, ensuring high precision in various applications. The AD5293 operates over a wide voltage range, supporting both single-supply (9 V to 33 V) and dual-supply (±9 V to ±16.5 V) configurations. It is available in a compact 14-lead TSSOP package and is guaranteed to operate over the extended industrial temperature range of −40°C to +105°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 1024 | - |
| Nominal Resistance | 20 kΩ, 50 kΩ, 100 kΩ | Ω |
| Resistor Tolerance | ±1% | - |
| Temperature Coefficient (Rheostat Mode) | 35 ppm/°C | ppm/°C |
| Temperature Coefficient (Voltage Divider Mode) | 5 ppm/°C | ppm/°C |
| Single-Supply Voltage Range | 9 V to 33 V | V |
| Dual-Supply Voltage Range | ±9 V to ±16.5 V | V |
| Interface Type | SPI-compatible serial interface | - |
| Wiper Resistance | 60 Ω | Ω |
| Bandwidth | 520 kHz | kHz |
| Operating Temperature Range | −40°C to +105°C | °C |
| Package Type | 14-lead TSSOP | - |
Key Features
- High resolution with 1024 positions, offering precise control over resistance settings.
- Calibrated 1% nominal resistor tolerance, ensuring high accuracy and reliability.
- Low temperature coefficient of 35 ppm/°C in rheostat mode and 5 ppm/°C in voltage divider mode.
- Wide operating voltage range: single-supply (9 V to 33 V) and dual-supply (±9 V to ±16.5 V).
- SPI-compatible serial interface for easy communication and control.
- Compact 14-lead TSSOP package suitable for space-constrained applications.
- 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 resolution of the AD5293 digital potentiometer?
The AD5293 has a resolution of 1024 positions.
- What are the nominal resistance values available for the AD5293?
The nominal resistance values are 20 kΩ, 50 kΩ, and 100 kΩ.
- What is the resistor tolerance of the AD5293?
The resistor tolerance is ±1%.
- What is the temperature coefficient of the AD5293 in rheostat mode?
The temperature coefficient in rheostat mode is 35 ppm/°C.
- What are the operating voltage ranges for the AD5293?
The AD5293 operates in single-supply mode from 9 V to 33 V and in dual-supply mode from ±9 V to ±16.5 V.
- What type of interface does the AD5293 use?
The AD5293 uses an SPI-compatible serial interface.
- What is the wiper resistance of the AD5293?
The wiper resistance is 60 Ω.
- What is the bandwidth of the AD5293?
The bandwidth is 520 kHz.
- What is the operating temperature range of the AD5293?
The operating temperature range is −40°C to +105°C.
- In what package is the AD5293 available?
The AD5293 is available in a 14-lead TSSOP package.
