AD5172BRM50

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Data acquisition has been increasingly important in the daily life, with the rapid development of technology, digital potentiometers are gradually dominating the field of data acquisition. The AD5172BRM50 is a digital potentiometer from Analog Devices, which integrates accurate and stable performance featuring low power consumption, wide range of adjustment and digital interface. This data sheet reviews the application fields and working principles of the AD5172BRM50 digital potentiometer.

Key Features and Benefits

The AD5172BRM50 digital potentiometer features an integrated non-volatile memory, providing 50TP/g of resolution and 10TP/g of linearity. It utilizes an onboard R/W register to facilitate register-level settings to adjust the settings and applies a ratiometric output. It operates in 0.7V-5.5V wide range of supply voltage, consuming only 3.2 uA of current. In addition, this digital potentiometer offers 50TP/g of resolution and a ±1TC skew, allowing for the resistor\'s settings to be adjusted digitally.

Application Fields

The AD5172BRM50 is widely used in a variety of data acquisition applications including audio settings, sensor calibration, programmable gain stages and temperature tracking. In many of these applications, the digital potentiometer can be used to precisely adjust settings like gain, frequency and sensitivity. In addition, they are used to adjust offset and balance of the power amplifier systems, to reduce the idle current and improve the distortion performance. Moreover, they are also used in several industrial systems such as heating, ventilation, air conditioning and refrigerator systems to control the setting of thermistors and transistors.

Working Principle

The AD5172BRM50 is a two-wire, digital potentiometer, which operates in a manner similar to traditional mechanical potentiometers. The chip is always powered and the resistor settings can be controlled by a host system, typically through an I2C or SPI protocol. The internal nonvolatile memory stores the settings and determines the position of the wiper in the component, which alters the resistance between the two terminals of the component. The resistance between the two terminals then determines the current flow through the component, and this regulates the amount of energy passing through.

When the component is adjusted, the resistance is directly changed at the wiper which remains at a fixed position. The component can be programmed to either begin at a certain resistance value or begin at the highest or lowest resistance value. Thus, the AD5172BRM50 digital potentiometer provides a high degree of control and modulation in data acquisition applications.

Conclusion

The AD5172BRM50 is a versatile and robust digital potentiometer, which facilitates accurate and stable performances in data acquisition applications. It features an integrated non-volatile memory, a wide range of adjustment and digital interface. The chip provides 50TP/g of resolution and 10TP/g of linearity, enabling the resistor\'s settings to be adjusted digitally. It is widely used in audio settings, sensor calibration and programmable gain stages and other industrial systems. The AD5172BRM50 digital potentiometer is an ideal choice for a wide range of data acquisition applications due to its high performance and low power consumption.

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