Overview
The AD5144ABRUZ100 is a quad-channel, 256-position, I2C nonvolatile digital potentiometer produced by Analog Devices Inc. This component is part of the AD5124/AD5144/AD5144A family, offering a nonvolatile solution for various adjustment applications. It features low resistor tolerance errors and high accuracy, making it suitable for a wide range of applications requiring precise resistance settings.
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 | |
| Logic Supply Voltage | 1.8 V to 5.5 V | |
| Operating Temperature | −40°C to +125°C | |
| Package Type | 20-Lead TSSOP |
Key Features
- Linear gain setting mode allowing independent programming of resistance between digital potentiometer terminals.
- Single- and dual-supply operation with independent logic supply.
- High bandwidth and low total harmonic distortion (THD) for optimal performance with AC signals.
- Low wiper resistance of 40 Ω at the ends of the resistor array.
- SPI-/I2C-compatible digital interface for setting wiper values and reading back wiper register and EEPROM contents.
- Compact 20-lead TSSOP and 24-lead LFCSP package options.
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 available for the AD5144ABRUZ100?
The AD5144ABRUZ100 offers 10 kΩ and 100 kΩ resistance options.
- What is the maximum resistor tolerance for this component?
The maximum resistor tolerance is ±8%.
- What is the wiper current capacity of the AD5144ABRUZ100?
The wiper current capacity is ±6 mA.
- What is the temperature coefficient of the AD5144ABRUZ100?
The temperature coefficient is 35 ppm/°C.
- What is the bandwidth of the AD5144ABRUZ100?
The bandwidth is 3 MHz.
- How long does the start-up time take for the AD5144ABRUZ100?
The start-up time is less than 75 μs.
- What is the operating temperature range for the AD5144ABRUZ100?
The operating temperature range is −40°C to +125°C.
- What types of packages are available for the AD5144ABRUZ100?
The component is available in 20-lead TSSOP and 24-lead LFCSP packages.
- What interface does the AD5144ABRUZ100 use for setting wiper values?
The component uses an SPI-/I2C-compatible digital interface.
- What are some common applications of the AD5144ABRUZ100?
Common applications include portable electronics level adjustment, LCD panel brightness and contrast controls, programmable filters, delays, and time constants, and programmable power supplies.
