DAC7715U/1K

Reference Type:	External
Base Part Number:	DAC7715
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Operating Temperature:	-40°C ~ 85°C
Architecture:	R-2R
INL/DNL (LSB):	±2 (Max), ±1 (Max)
Voltage - Supply, Digital:	14.25 V ~ 15.75 V
Voltage - Supply, Analog:	±14.25 V ~ 15.75 V
Series:	--
Data Interface:	SPI
Differential Output:	No
Output Type:	Voltage - Buffered
Settling Time:	10µs
Number of D/A Converters:	4
Number of Bits:	12
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Data Acquisition - Digital to Analog Converters (DAC)

Data acquisition is the process of collecting data from a variety of sources, such as sensors and other physical devices, which involves the collection and storage of digital or analog signals. Data acquisition consists of converting analog signals into digital form and is used where data has to be recorded, analyzed, processed and displayed in digital form. Digital to Analog Converters (DAC) are devices used to convert digital signals into analog signals and are often used as part of data acquisition systems. One of the most widely used Digital to Analog Converters is the DAC7715U/1K. This device is a 16-bit resolution, unipolar, single channel DAC with a minimum output voltage of 0V and a maximum output voltage of 1V. It has a resolution of 16 bits and is capable of converting digital values ranging from 0 up to 4095 into an analog voltage level corresponding to 0 up to 1V. The DAC7715U/1K is a low-power integrated circuit that includes a preset and reference voltage generator which can be combined with 10-bit and 12-bit DACs as well as ADCs.The DAC7715U/1K is usually used in applications such as motor control, digital signal generation, and digital audio systems. It is also used in medical imaging systems, where it is employed to generate precise analog signals with a high degree of accuracy, and measuring instruments such as multimeters, oscilloscopes and electronic balance systems. The working principle of the DAC7715U/1K is based on the Voltage Digital-to-Analog Conversion (VDAC) principle, which is a digital-to-analog conversion technique used to convert digital data into an analog voltage level. This conversion technique is based on the use of two analog circuits, the integrator and the differential amplifier. The combining of these two circuits results in an analog voltage proportional to the data that was applied to the DAC.The integrator circuit acts as a feedback network by taking the reference voltage and converting it into a high-quality analog output voltage. A reference voltage generator is connected to the input of the integrator circuit in order to provide a stable and precise voltage value. Once the voltage is provided to the integrator circuit, the reference voltage is converted into a low impedance output. The output from the integrator circuit is fed into the differential amplifier circuit which further processes the signal and produces an output voltage proportional to the digital data being applied to the DAC.In summary, the DAC7715U/1K is a 16-bit resolution, unipolar, single channel DAC used in motor control, medical imaging, and measuring instrumentation applications. It works by employing the VDAC principle, where two analog circuits, the integrator and the differential amplifier, are used to convert digital data into an analog voltage. This device is a reliable, low-power integrated circuit which has a resolution of 16 bits and is capable of accurately converting digital values into corresponding analog voltage levels.

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