EVAL-AD5162SDZ

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Evaluation and demonstration boards and kits are essential components of the manufacturing industry. They are used to evaluate and test circuit board designs, power supplies, switching converters, resistors, capacitors and transistors, as well as to demonstrate product designs to potential customers. The EVAL–AD5162SDZ is one such evaluation and demonstration board, and its application field and working principle are discussed in this paper.

Application Field

The EVAL–AD5162SDZ evaluation and demonstration board utilizes an Analog Devices AD5162 high-voltage, low-power, nonvolatile, 256-position linear digital potentiometer. This device offers a wide range of capability and versatility, making it suitable for a variety of industrial and consumer applications. These applications include automotive, telecom, and industrial electronics; automotive lighting and instrumentation; office automation and consumer appliances; and medical instrumentation and equipment.

The one-time programmable EVAL–AD5162SDZ board can be used to evaluate the performance of the AD5162 performance characteristics and can also provide a simple method to determine the interface options on the device. This board is available in various form factors, such as the DIP, SSOP, and BGA packages, making it suitable for a variety of applications.

Working Principle

The working principle of the EVAL–AD5162SDZ evaluation and demonstration board is based on the concept of digital potentiometry. This concept uses a voltage-controlled linear resistor to produce a linear voltage response over a range of values. In the AD5162 device, this linear resistor is digitally programmed by a 4-bit data line. This programming is stored in nonvolatile memory, so the device can be reprogrammed multiple times for most applications. The on-chip voltage divider is also protected from electrical stress using a PIN diode.

The EVAL–AD5162SDZ evaluation and demonstration board utilizes the concept of digital potentiometry to provide users with a convenient way to evaluate the performance of the AD5162 device. This board features an 4-bit potentiometer, a potentiometer adjuster, a program enable/disable switch, a power source selection switch, a push button for data entry, and an LED for power status. These various components work in combination to provide accurate, reliable and repeatable performance of the AD5162.

The 4-bit potentiometer is responsible for providing the resistance value for the Pot Adjust feature. The potentiometer adjuster is used to adjust the resistance value of the potentiometer and is responsible for controlling the output voltage of the device. The Program Enable/Disable switch is used to control the operation of the on-chip programming and enables users to program the device with a new resistance value. The power source selection switch is used to select between the AC and DC power sources, depending on the application requirements. Finally, the Push Button input is used to enter the data into the device and is also used to reset the device if it is malfunctioning.

In summary, the EVAL–AD5162SDZ evaluation and demonstration board provides a simple, cost-effective solution for industrial and consumer applications that require precise, reliable, and repeatable performance characteristics of the AD5162 device. This board simplifies the evaluation of the device and is capable of withstanding electrical stress, making it a valuable tool in the manufacturing industry.

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