Overview
The AD5161BRMZ50-RL7 is a 256-position digital potentiometer produced by Analog Devices Inc. This component performs the same electronic adjustment function as mechanical potentiometers or variable resistors but offers enhanced resolution, solid-state reliability, and superior low temperature coefficient performance. It is designed to operate with a single supply voltage range of 2.7V to 5.5V and features a pin-selectable SPI or I²C compatible digital interface for controlling the wiper settings.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 256 | - |
| Nominal Resistor Values | 50 kΩ | Ω |
| Operating Temperature Range | -40 to 125 | °C |
| Resistance Temperature Coefficient | 45 | ppm/°C |
| Resistor Tolerance | 30% | % |
| Supply Voltage Range | 2.7 to 5.5 | V |
| Supply Current | 3 | µA |
| -3dB Bandwidth | 1.2 MHz | Hz |
| Total Harmonic Distortion | 0.05% | % |
| Interface | SPI, I²C | - |
| Package/Case | 10-lead MSOP | - |
Key Features
- SPI/I²C compatible interface for controlling the wiper settings.
- High-speed data transfer capabilities.
- Digital potentiometer with 256 positions for precise adjustments.
- Advanced configuration settings supported.
- Preset values stored in volatile memory.
- Programmable resistance range flexibility.
- Low temperature coefficient of 45 ppm/°C.
- Single supply operating voltage range of 2.7V to 5.5V.
- Power-on preset to midscale.
Applications
- Mechanical potentiometer replacement in new designs.
- Adjustment of transducers for pressure, temperature, position, chemical, and optical sensors.
- RF amplifier biasing and gain control.
- Offset adjustment in various electronic circuits.
Q & A
- Q: What is the nominal resistance value of the AD5161BRMZ50-RL7?
A: The nominal resistance value is 50 kΩ. - Q: What are the supported interfaces for the AD5161BRMZ50-RL7?
A: The device supports both SPI and I²C interfaces. - Q: What is the operating temperature range of the AD5161BRMZ50-RL7?
A: The operating temperature range is -40°C to +125°C. - Q: How many positions does the digital potentiometer have?
A: The digital potentiometer has 256 positions. - Q: What is the supply voltage range for the AD5161BRMZ50-RL7?
A: The supply voltage range is 2.7V to 5.5V. - Q: What is the typical supply current for the AD5161BRMZ50-RL7?
A: The typical supply current is 3 µA. - Q: What is the -3dB bandwidth of the AD5161BRMZ50-RL7?
A: The -3dB bandwidth is 1.2 MHz. - Q: What is the total harmonic distortion (THD) of the AD5161BRMZ50-RL7?
A: The total harmonic distortion is 0.05%. - Q: Is the AD5161BRMZ50-RL7 RoHS compliant?
A: Yes, the AD5161BRMZ50-RL7 is RoHS compliant. - Q: What is the package type of the AD5161BRMZ50-RL7?
A: The package type is 10-lead MSOP.
