Analog Devices Inc. AD7228KR Product Overview

The AD7228KR from Analog Devices Inc. is a high-performance, octal 8-bit digital-to-analog converter (DAC) designed to meet the rigorous demands of precision analog applications. This versatile component is ideal for use in a wide range of applications, including process control systems, digital signal processing, and computer-controlled calibration.

One of the key features of the AD7228KR is its eight voltage-output DACs, which are packaged neatly in a 24-pin plastic DIP or SOIC. The compact form factor of this device allows for efficient use of board space, making it a perfect choice for space-constrained applications. Each DAC can be programmed individually or simultaneously, offering flexibility for various output configurations.

The AD7228KR operates from a single +5 V to +15 V supply or dual ±5 V to ±15 V supplies, providing designers with the versatility to choose the best power option for their system requirements. With a settling time of just 1 μs to ±1/2 LSB, the AD7228KR ensures rapid, accurate output adjustment, which is critical for real-time and high-speed applications.

The device also boasts impressive specifications, such as low power dissipation of 20 mW at +5 V, making it an energy-efficient choice for power-sensitive designs. The AD7228KR features an on-chip, user-selectable power-down function, which reduces power consumption to just 4 μW, further extending battery life in portable devices.

For design flexibility, the AD7228KR includes double-buffered interface logic with a 12-bit wide data bus. This feature allows the input and DAC registers to be updated independently, which can be particularly useful in complex, multi-channel applications. The interface is compatible with most 8-bit and 16-bit microprocessors, including 68000 and 8085.

In summary, the AD7228KR from Analog Devices Inc. is a robust, precision DAC solution that offers a combination of performance, low power consumption, and ease of integration. It is a testament to Analog Devices' commitment to providing high-quality components that enhance the capabilities and reliability of electronic systems.