AD8400ARZ50

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AD8400ARZ50 is a kind of data acquisition chip, belonging to the category of digital potentiometers. Generally speaking, the data acquisition chip such as AD8400ARZ50 is controlled by a resistive voltage divider or application of the microcomputer-based instrumental systems. Its application field and working principle are as following.Application FieldAD8400ARZ50 can be used in many industries for power controlling, low power consumption, general purpose, measurement and control. It is widely applied in industrial automation, motor control, analog/mixed signal systems, audio applications, instrumentation, and power electronics.The advantages of using this chip are low current consumption, low cost, excellent linearity, good temperature coefficient and high stability. And it can provide protection to the overvoltage, short circuit, and reverse polarity, etc.Working PrincipleThe working principle of digital potentiometers is based on the fact that resistance changes with the input voltage. With AD8400ARZ50, the resistance of the variable resistor can be adjusted by changing the input voltage.At the same time, this variable resistor also includes an internal controller, a secure digital input, as well as an operational amplifier, which can improve the feedback stability, so that the feedback resistance can be changed more precisely.Furthermore, there is also a sense of current flow in the circuit. The sense of current will limit the amount of current flowing through the variable resistor, and maintain the stability of the circuit.In addition, the chip has a reference voltage regulator, an SPI interface, and a high voltage low power consumption driver. The SPB interface can be used for communication and control, and the driver can reduce power consumption substantially.As a result, the whole circuit of AD8400ARZ50 can be powered by a single low voltage source, while providing precise feedback and stability, and keeping power consumption to a minimum.ConclusionIn conclusion, AD8400ARZ50 is a kind of data acquisition chip, belonging to the category of digital potentiometers. It has wide application field, including industrial automation, motor control, analog/mixed signal systems, audio applications, instrumentation and power electronics. Besides, it works through input voltage changes, sense of current limit, and SPI interface and driver.In addition to its broad application field and great working principle, AD8400ARZ50 also has advantages of low current consumption, low cost, excellent linearity, good temperature coefficient and high stability. As a result, it is widely used in many industries.

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