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Data Acquisition - Digital Potentiometers

The AD5204BRZ10-REEL digital potentionmeter is a low power, single-channel device offering resistances up to 10Ω and can be used in a wide variety of applications needing digital control and readback. The device is also ideal for applications such as data acquisition, LED displays and on-board trimming.

Application field

The AD5204BRZ10-REEL can be used for setting a desired output voltage. It can also be used for provide adjustable gain with D/A converters, position control, lighting control, and temperature compensation in analog circuits. The AD5204BRZ10-REEL is ideal for applications that require precision and low current consumption. The small package size and low power requirements make it a perfect choice for portable and low-power projects.

Working principle

The AD5204BRZ10-REEL utilizes a resistor array and five digital inputs to set the wiper to one of the tap points. Readback voltage and wiper position can be achieved using two dedicated digital output pins. The digital inputs control which of the 32 taps of the internal resistor array the wiper connects to. With one of the five digital inputs controlling the MSB, and the other four the LSBs, the wiper can connect to any of the 32 tap points. Digital inputs can be connected directly to a microcontroller; however, additional circuiry is necessary for reading back voltage and wiper position.

The device also has a power-on reset feature which causes the wiper to connect to the mid-scale position and allows the device to restore the set value after a power outage. Additionally, the AD5204BRZ10-REEL can operate with either an analog voltage or digital inputs, giving users more flexibility in their system design.

Conclusion

The AD5204BRZ10-REEL digital potentionmeter is an integrated solution for a number of applications, including setting a desired output voltage, providing adjustable gain with D/A converters, position control, lighting control, and temperature compensation in analog circuits. It has a low power consumption, small package size, and can operate with either an analog voltage or digital inputs. With its wide range of capabilities, the AD5204BRZ10-REEL is an ideal choice for data acquisition, LED displays, and on-board trimming applications.

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