AD7581BQ

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The AD7581BQ is a low cost, octal 8-bit multiplying digital-to-analog converter (DAC) designed for a wide variety of applications. This versatile device operates from a single +5V supply and requires only one external resistor to set the gain of the device. The non-zero power-on state of the device is determined using two independently controlled adjustment registers. The AD7581BQ is designed for operation up to 140 MHz, making it suitable for high-speed and wideband applications.

The AD7581BQ belongs to a category of application-specific data acquisition products, or “special purpose”, which are designed for specific types of applications. These products are typically used in unique or difficult applications that require precision, accuracy, and high speed performance.

The AD7581BQ is an ideal device for any application that requires digital-to-analog conversion, including digital audio and video, telecommunications, automotive, and industrial control applications. The AD7581BQ provides a continuous 8-bit output voltage with a nominal full-scale range of 0V to VCC (maximum voltage of 5 volts); thus, it is capable of providing an output voltage that is proportional to the input code.

The AD7581BQ is also well suited for applications that require accurate and stable processing of low-frequency inputs. The device integrates two precision gain registers that allow for accurate gain setting for inputs that are either higher or lower than expected.

The AD7581BQ features a 2-3-4 pin MPM interface that is designed for use with SPI, Microwire and QSPI-type interfaces. The device operates from a +5V single-ended power supply and requires only one external resistor to set the gain. The device accepts an 8-bit digital input code, and outputs an analog voltage that is proportional to the input code.

The AD7581BQ performs digital-to-analog conversion by converting a digital input code into an analog voltage of proportional amplitude. This is accomplished by generating three digital signals that are applied to the three digital inputs of the DAC: address lines, data lines, and control lines. The address lines select the DAC channel to be addressed and are used to provide address information and write control. The data lines are used to load the desired 8-bit data input code into the DAC, while the control lines are used to control the write timing and data bus selection.

The AD7581BQ also features low noise, low power consumption, and an integrated electrical isolation mechanism for operation in harsh and noisy environments. The device also features internal temperature protection, overload protection, and overload protection features, making it a reliable, cost-effective and versatile solution for a wide variety of applications.

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