EVAL-AD5245DBZ

Series:	--
Part Status:	Active
Type:	Data Acquisition
Function:	Digital Potentiometer
Embedded:	--
Utilized IC / Part:	AD5245
Primary Attributes:	1 Channel, 256 Position
Supplied Contents:	Board(s)
Secondary Attributes:	I²C Interface
Base Part Number:	AD5245

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Introduction

Evaluation and Demonstration Boards and Kits are digital circuit boards developed for embedded applications that allow users to evaluate and demonstrate different hardware and software features. Developed for use with microcontrollers, the EVAL-AD5245DBZ is an evaluatorboard that acts as a digital potentiometer, allowing engineers to demonstrate and evaluate the features of the digital potentiometer on the board. In this article, we’ll look at the application field and working principle of the EVAL-AD5245DBZ application board.

EVAL-AD5245DBZ Application Field

The EVAL-AD5245DBZ application board is designed for use in embedded systems. It is ideal for applications that require precision control of a digital potentiometer, such as adjustable voltage dividers, instrumentation amplifiers, and signal conditioning circuits. It can also be used in applications where digital filters are needed, such as audio processing and vocal recognition systems. The board also has a wide range of operating temperature, supports adjustment of up to 32 taps, and is able to provide resolution up to 6 bits. It also provides an easy-to-use graphical user interface (GUI) for programming and debugging, as well as four configurable extender pins.

EVAL-AD5245DBZ Working Principle

The EVAL-AD5245DBZ application board consists of an I2C bus controlled digital potentiometer which is programmed and adjusted by the Atmel® ATXMEGA16E5 microcontroller. The board is powered up from 5 volts from the USB bus, which is used to communicate to the microcontroller. To program and configure the board, the user needs to connect the USB cable to the board and access the ATAmega16E5 microcontroller. The microcontroller is comprised of an internal I2C master, which enables the communication between the digital potentiometer IC, the software on the board and the host computer. The digital potentiometer IC manages the taps and adjusts the output voltage. To control the digital potentiometer, the user needs to write data from an I2C bus to the chip’s inputs. The chip’s outputs will then adjust the voltage as instructed. The board also provides a GUI interface through which the user can visually adjust the output voltage of the digital potentiometer.

Conclusion

The EVAL-AD5245DBZ application board is an efficient and easy-to-use digital potentiometer that can be used in embedded systems, audio processing and vocal recognition systems, and instrumentation amplifiers. The board uses an I2C bus controlled digital potentiometer which is programmed and adjusted by the Atmel® ATXMEGA16E5 microcontroller, and provides an easy-to-use graphical user interface for programming and debugging.

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