Overview
The AD5144ABRUZ100-RL7 is a quad-channel, 256-position, nonvolatile digital potentiometer produced by Analog Devices Inc. This device is designed to provide precise and flexible resistance adjustment, making it suitable for a wide range of applications. It features a serial peripheral interface (SPI) for digital communication, allowing for the programming and reading of the wiper register and electronically erasable programmable read-only memory (EEPROM) contents.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 256 positions | - |
| Nominal Resistance | 100 kΩ | Ω |
| Integral Nonlinearity (R-INL) | −0.5 to +0.5 LSB (VDD ≥ 2.7 V) | LSB |
| Differential Nonlinearity (R-DNL) | −0.5 to +0.5 LSB | LSB |
| Wiper Resistance | 40 Ω (at ends of resistor array) | Ω |
| Resistance Temperature Coefficient | 35 ppm/°C | ppm/°C |
| Operating Temperature Range | −40°C to +125°C | °C |
| Interface | SPI | - |
| Package | 20-Lead TSSOP | - |
Key Features
- Quad-Channel Configuration: Four independent digital potentiometers in a single package.
- High Resolution: 256-position resolution for precise resistance adjustment.
- Nonvolatile Memory: EEPROM memory to store wiper settings during power-down.
- Low Wiper Resistance: 40 Ω at the ends of the resistor array for minimal signal attenuation.
- High Bandwidth and Low THD: Suitable for filter design and applications involving AC signals.
- SPI Interface: Allows for easy programming and reading of wiper register and EEPROM contents.
Applications
- Audio and Video Equipment: For volume control, tone adjustment, and other signal processing tasks.
- Industrial Control Systems: For calibration and adjustment of sensors and actuators.
- Medical Devices: For precise control over signal levels in medical equipment.
- Automotive Systems: For various control and adjustment functions in automotive electronics.
- Filter Design: Due to its high bandwidth and low total harmonic distortion (THD), it is suitable for designing filters.
Q & A
- What is the resolution of the AD5144ABRUZ100-RL7?
The resolution is 256 positions.
- What is the nominal resistance of the AD5144ABRUZ100-RL7?
The nominal resistance is 100 kΩ.
- What interface does the AD5144ABRUZ100-RL7 use?
The device uses a Serial Peripheral Interface (SPI).
- What is the operating temperature range of the AD5144ABRUZ100-RL7?
The operating temperature range is −40°C to +125°C.
- Does the AD5144ABRUZ100-RL7 have nonvolatile memory?
Yes, it has EEPROM memory to store wiper settings during power-down.
- What is the wiper resistance of the AD5144ABRUZ100-RL7?
The wiper resistance is 40 Ω at the ends of the resistor array.
- What package type is the AD5144ABRUZ100-RL7 available in?
The device is available in a 20-Lead TSSOP package.
- Is the AD5144ABRUZ100-RL7 suitable for filter design?
Yes, due to its high bandwidth and low total harmonic distortion (THD), it is suitable for filter design.
- What are some common applications of the AD5144ABRUZ100-RL7?
Common applications include audio and video equipment, industrial control systems, medical devices, and automotive systems.
- What is the resistance temperature coefficient of the AD5144ABRUZ100-RL7?
The resistance temperature coefficient is 35 ppm/°C.
