Overview
The AD5144ABRUZ10, produced by Analog Devices Inc., is a quad-channel, 256-position, nonvolatile digital potentiometer. This device is part of the AD5124/AD5144/AD5144A family and offers a robust solution for various adjustment applications. It features both I2C and SPI compatible digital interfaces, allowing for precise control and readback of the wiper register and EEPROM contents. The device is available in a compact 20-lead TSSOP package and operates over an extended industrial temperature range of −40°C to +125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resistance Options | 10 kΩ, 100 kΩ | - |
| Resistor Tolerance | ±8% maximum | - |
| Wiper Current | ±6 mA | - |
| Temperature Coefficient | 35 ppm/°C | - |
| Bandwidth | 3 MHz | - |
| Start-up Time | < 75 µs | - |
| Supply Voltage Range | 1.8 V to 5.5 V | - |
| Operating Temperature Range | −40°C to +125°C | - |
| Package Type | 20-lead TSSOP | - |
Key Features
- Linear gain setting mode allowing independent programming of the resistance between the digital potentiometer terminals.
- Single- and dual-supply operation, enabling ground-referenced bipolar signal adjustment.
- Independent logic supply: 1.8 V to 5.5 V.
- Low wiper resistance of only 40 Ω at the ends of the resistor array.
- I2C and SPI compatible digital interfaces for wiper register and EEPROM control.
- Compact 20-lead TSSOP package.
Applications
- Portable electronics level adjustment.
- LCD panel brightness and contrast controls.
- Programmable filters, delays, and time constants.
- Programmable power supplies.
Q & A
- What are the resistance options for the AD5144ABRUZ10?
The AD5144ABRUZ10 offers 10 kΩ and 100 kΩ resistance options.
- What is the maximum resistor tolerance of the AD5144ABRUZ10?
The maximum resistor tolerance is ±8%.
- What is the wiper current capability of the AD5144ABRUZ10?
The wiper current is ±6 mA.
- What is the temperature coefficient of the AD5144ABRUZ10?
The temperature coefficient is 35 ppm/°C.
- What are the communication interfaces supported by the AD5144ABRUZ10?
The device supports both I2C and SPI interfaces.
- What is the operating temperature range of the AD5144ABRUZ10?
The operating temperature range is −40°C to +125°C.
- What package type is the AD5144ABRUZ10 available in?
The device is available in a 20-lead TSSOP package.
- What are some common applications of the AD5144ABRUZ10?
Common applications include portable electronics level adjustment, LCD panel brightness and contrast controls, programmable filters, delays, and time constants, and programmable power supplies.
- How does the linear gain setting mode work on the AD5144ABRUZ10?
The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals through the RAW and R_WB string resistors.
- What is the start-up time of the AD5144ABRUZ10?
The start-up time is less than 75 µs.
