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Data Acquisition - Digital to Analog Converters (DAC)

The DAC7731EG4 is a digital to analog converter (DAC) provided by Texas Instruments which combines quality, high performance features and a low power, small form factor design. The device provides a bidirectional communication interface with 32-bit resolution allowing the user to easily integrate digital-to-analog conversion capabilities into their designs.

The main application of the DAC7731EG4 is to convert digital data into analog signals. This is especially useful in cases where a digital signal needs to be converted into an analog form that can be interacted with electronically. The DAC7731EG4 offers the ability to program its output level, making it ideal for interfacing with other analog components. Additionally, its integrated voltage reference enables accurate output level and stability for all output conditions.

Working Principle

The DAC7731EG4 works by converting each digital input into an analog signal. This is accomplished by utilizing the device’s two main components: the digital-to-analog conversion module and the voltage reference. The digital-to analog conversion module processes the digital input and converts it into a voltage signal. The voltage reference component is then used to measure and adjust the resultant voltage levels so that they are accurate.

The DAC7731EG4 provides access to its full 32-bit resolution with its 16-bit parallel interface and three serial ports that support eight more data bits. The device also offers a range of power saving features, including the ability to dynamically clock down the internal digital logic in order to reduce power consumption during periods of inactivity. The DAC7731EG4 also features programmable hysteresis parameters that allow users to customize the voltage reference and input resolution.

Features

• 32-bit resolution with 16-bit parallel interface
• Three serial ports offer eight more data bits
• Voltage reference provides accurate output level and stability
• Programmable hysteresis parameters allow customization of voltage reference and input resolution
• Integrated power saving features such as clock down of the internal digital logic
• Integrated voltage amplifier offers adjustable gain control

The DAC7731EG4 is a very versatile device providing a range of features for digital-to-analog conversion. This device is suited for a wide variety of applications such as industrial automation, home theatre systems, portable devices and broadcast. The high-resolution and dynamic range of this device coupled with its low power requirements and small form factor makes it an ideal choice for embedded designs.

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