AD7564BRZ-REEL

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Data Acquisition - Digital to Analog Converters (DAC) is important electronic components that convert a digital signal into an analog signal, which can be seen as a representation of the analog signal in a digital form. The AD7564BRZ-REEL is one of the DAC integrated circuits (ICs) offered by Analog Devices, Inc., and is used in many applications that require a direct conversion of digital information into an analog signal. This article will describe the application field and working principle of the AD7564BRZ-REEL.

The AD7564BRZ-REEL is a 12-bit monolithic Digital-to-Analog Converter (DAC), designed for high accuracy and low power operation. It is ideal for use in applications such as automotive, communication, industrial and medical. One of the key features of the AD7564BRZ-REEL is its small size: it is a low footprint, 1.6mmx1.6mm, 12-pin, DIP-package IC. Moreover, the AD7564BRZ-REEL features a 1.20V to 5.50V analog voltage range, a settling time of 30 µs and a total unadjusted error of ±1LSB. It is suitable for both large and small signals, with a full-scale output current of 10 mA, making it ideal for driving op-amps. The AD7564BRZ-REEL is also available in a 4-pin MSOP package and offers options for power down mode and 1.20V to 5.50V supply voltage.

The AD7564BRZ-REEL has selectable architectures, single-ended or pseudo-differential, satisfying a wide variety of application requirements. With the single-ended architecture, the output range is provided by one digital data connection. The pseudo-differential architecture, however, requires two digital data connections, which allows a wider range of output signals. The architecture can be changed by applying one of the two signals on a dedicated control pin.

The working principle of the AD7564BRZ-REEL is based on the centroid architecture, where interpolation is used to maximize resolution. The RC charge compensation, along with the power down mode, ensure low distortion outputs. Moreover, a noise-shaping technique is used to reduce the harmonic distortion of the DAC. The AD7564BRZ-REEL provides adjustable VREF for trimming the reference voltage and automatic powerdown to reduce power consumption.

In terms of performance, the AD7564BRZ-REEL offers output currents from 10mA, settle time of 30 µs, a THD of 0.0005% and SNR of -103 dB. The Total Unadjusted Error (TUE) is ±1LSB, including the Inherent Offset Error and Gain Error. The AD7564BRZ-REEL can be easily interfaced to an FPGA/Microprocessor, with two data ports and two digital control pins. Moreover, an analog output can be easily configured by adjusting the DAC’s VREF and gain.

The AD7564BRZ-REEL is extremely versatile and can be used in a range of digital-to-analog applications, such as test and measurement systems, digital light or color processing, medical imaging systems, bar-coding scanners, high-precision data conversion, automotive control systems and other embedded applications.

In conclusion, the AD7564BRZ-REEL is a high-performance and high-accuracy 12-bit Digital-to-Analog Converter (DAC) from Analog Devices, Inc., offering a single-ended and a pseudo-differential architecture, selectable low-power consumption, fast conversion speed of 30 µs and a THD of 0.0005%. It is an ideal choice for applications such as communication, industrial and medical, as well as for embedded applications that require high accuracy and fast analog conversion.

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