Overview
The AD5161BRMZ10, produced by Analog Devices Inc., is a 256-position digital potentiometer that offers a compact and reliable solution for various adjustment applications. This device is packaged in a 10-lead MSOP (3 mm × 4.9 mm) and operates on a single supply voltage ranging from 2.7 V to 5.5 V. It is designed to replace mechanical potentiometers or variable resistors with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 256 | - |
| End-to-End Resistance | 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ | Ω |
| Package Type | 10-Lead MSOP | - |
| Interface | SPI/I2C compatible | - |
| Supply Voltage | 2.7 V to 5.5 V | V |
| Temperature Coefficient | 45 ppm/°C | ppm/°C |
| Operating Temperature | −40°C to +125°C | °C |
| Current Consumption | 8 μA | μA |
Key Features
- Pin selectable SPI or I2C compatible digital interface
- Full read/write of wiper register
- Power-on preset to midscale
- SDO output allows multiple device daisy-chaining in SPI mode
- Address pin AD0 for up to two devices on the same I2C bus
- Low power consumption (IDD = 8 μA)
- Wide operating temperature range (−40°C to +125°C)
- Evaluation board available
Applications
- Mechanical potentiometer replacement in new designs
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Gain control and offset adjustment
Q & A
- What is the AD5161BRMZ10 used for?
The AD5161BRMZ10 is used as a digital potentiometer to replace mechanical potentiometers or variable resistors in various applications, offering enhanced resolution and reliability.
- What are the available end-to-end resistance values for the AD5161BRMZ10?
The available end-to-end resistance values are 5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ.
- What is the operating voltage range of the AD5161BRMZ10?
The device operates on a single supply voltage ranging from 2.7 V to 5.5 V.
- What interfaces does the AD5161BRMZ10 support?
The device supports both SPI and I2C compatible digital interfaces.
- How does the AD5161BRMZ10 handle multiple device connections?
In SPI mode, the device can be daisy-chained using the SDO output. In I2C mode, the address pin AD0 allows up to two devices on the same bus.
- What is the temperature coefficient of the AD5161BRMZ10?
The temperature coefficient is 45 ppm/°C.
- What is the current consumption of the AD5161BRMZ10?
The device consumes less than 8 μA.
- What is the operating temperature range of the AD5161BRMZ10?
The operating temperature range is −40°C to +125°C.
- Is an evaluation board available for the AD5161BRMZ10?
- What are some common applications of the AD5161BRMZ10?
