DAC7617UB/1KG4

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Data acquisition commonly refers to the process of measuring an electrical or physical phenomenon such as voltage, current, temperature, pressure, or sound with a computer. Data Acquisition - Digital to Analog Converters (DAC) are an important class of data acquisition devices that make it possible to convert digital signals into analog signals. The DAC7617UB/1KG4 is one such device, and it is used in a wide range of applications. This article will explore the application fields and working principle of the DAC7617UB/1KG4.

Application Fields of DAC7617UB/1KG4

The DAC7617UB/1KG4 is an 8-bit, dual channel, digital-to-analog converter (DAC) with an input voltage range of 0-4.096 V. It is typically used in industrial and automotive applications where accurate analog voltage signals are needed. The 8-bit resolution is sufficient for most applications since it allows a 1024 level conversion of a digital signal to its corresponding analog voltage range. It is also capable of high speed communication via various interfaces, such as Parallel, I2C, and PMBus.

The DAC7617UB/1KG4 is used in various applications such as controlling non-isolated current sources, generating analog voltage references, motor speed and positioning control, linearization of locational and pressure transducers, and the buffering of DAC signals. One of the most common applications for the DAC7617UB/1KG4 is to use it as a reference for other devices such as temperature sensors, current sensors, and other terminals that require precise analogue output signals.

Working Principle of DAC7617UB/1KG4

The DAC7617UB/1KG4 works by converting digital data into an analogue voltage. The digital data is received from an external source and is then converted using a digital-to-analogue converter (DAC). The DAC uses an R-2R ladder circuit to convert the digital data into a voltage. This voltage is then amplified by a programmable amplifier to obtain a precise output voltage level.

The DAC7617UB/1KG4 is also built with over-voltage and over-current protection to limit the output voltage and current levels in order to protect other components connected to it. It also contains an integrated auto-zero amplifier that is used to nullify the DC error of the DAC output. This auto-zero amplifier is used to ensure a constant DC level of the voltage output.

The DAC7617UB/1KG4 has a great precision in both temperature and voltage conversion. It has a temperature coefficient of 5ppm/°C which ensures a high degree of accuracy. It also has a low corner frequency of 0.3Hz which makes it suitable for low frequency applications. The device also contains a programmable gain amplifier and an adjustable output level. These features make it easy to adjust the output level of the DAC according to the application needs.

Conclusion

The DAC7617UB/1KG4 from Analog Devices is a versatile digital-to-analog converter that is suitable for applications in a variety of different fields. Its 8-bit resolution allows for a wide range of levels of conversion, and its programmable gain amplifier and adjustable output level provide good levels of flexibility. Combined with its good temperature and voltage precision, the DAC7617UB/1KG4 is an excellent choice for applications where accurate analogue voltage signals are needed.

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