Overview
The AD5144BRUZ100-RL7 is a quad-channel, 256-position, nonvolatile digital potentiometer produced by Analog Devices Inc. This component is designed to offer versatile programmability and high precision, making it suitable for a variety of applications. It features an SPI-/I2C-compatible digital interface, allowing for read/write access to the RDAC and EEMEM registers, as well as increment/decrement of resistance and other advanced functions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 256 | - |
| Resistance Options | 10 kΩ, 100 kΩ | - |
| Resistor Tolerance | ±8% | - |
| Wiper Current | ±6 mA | - |
| Temperature Coefficient | 35 ppm/°C | - |
| Bandwidth | 3 MHz | - |
| Start-up Time | < 75 μs | - |
| Operating Temperature Range | -40°C to +125°C | - |
| Package Type | 20-Lead TSSOP | - |
| Logic Supply Voltage | 1.8 V to 5.5 V | - |
Key Features
- Quad-channel configuration with independent control of each channel.
- Linear gain setting mode for precise resistance programming.
- Nonvolatile memory to store wiper positions and user-defined data.
- SPI-/I2C-compatible digital interface for read/write operations.
- Low wiper resistance (40 Ω at the ends of the resistor array).
- Single- and dual-supply operation.
- Fast start-up time and high bandwidth.
- Low total harmonic distortion (THD) suitable for AC signal applications.
Applications
- Portable electronics level adjustment.
- LCD panel brightness and contrast controls.
- Programmable filters, delays, and time constants.
- Programmable power supplies.
- Defense and aerospace applications (AD5144-EP model).
Q & A
- What is the resolution of the AD5144BRUZ100-RL7 digital potentiometer?
The AD5144BRUZ100-RL7 has a resolution of 256 positions per channel.
- What are the available resistance options for this component?
The component is available with 10 kΩ and 100 kΩ resistance options.
- What is the maximum wiper current of the AD5144BRUZ100-RL7?
The maximum wiper current is ±6 mA.
- What is the temperature coefficient of the AD5144BRUZ100-RL7?
The temperature coefficient is 35 ppm/°C.
- What is the operating temperature range of the AD5144BRUZ100-RL7?
The operating temperature range is -40°C to +125°C.
- What types of interfaces does the AD5144BRUZ100-RL7 support?
The component supports SPI- and I2C-compatible digital interfaces.
- What is the package type of the AD5144BRUZ100-RL7?
The component is packaged in a 20-Lead TSSOP.
- Can the AD5144BRUZ100-RL7 be used in defense and aerospace applications?
Yes, the AD5144-EP model supports defense and aerospace applications (AQEC standard).
- What is the start-up time of the AD5144BRUZ100-RL7?
The start-up time is less than 75 μs.
- What is the bandwidth of the AD5144BRUZ100-RL7?
The bandwidth is 3 MHz.
