AD664SD-UNI/883B

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Data Acquisition – Digital to Analog Converters (DACs) are an important part of any electronic system, as they can be used to convert discrete digital signals into continuous analog voltages and currents. The AD664SD-UNI/883B is an example of such a device, and is used in applications such as automatic test equipment, laboratory test systems, and instrumentation. In this article, we will look at the application field and working principle of the AD664SD-UNI/883B.

The AD664SD-UNI/883B is a 4-bit 4-channel voltage-output Digital to Analog Converter (DAC) designed for low-power applications. It is a monolithic integrated circuit composed of 256 current sources, a latch, output buffer, and control logic. The device has a wide input voltage range of 3.3V to 5.5V, and offers low power consumption (typically 5 mW).

The AD664SD-UNI/883B features a 4-bit input voltage and a wide 4-channel output voltage range of 0V to 2.5V. The device can accept input data in both binary, or 2’s complement format, and is suitable for use in unipolar and bipolar applications. The device is also capable of accurately scaling and converting analogue signals of up to 16-bits (2^16 = 65536 samples per second). Additionally, the device has a built-in latch pin which allows the device to simultaneously hold 4 input values.

The AD664SD-UNI/883B can be used in a variety of applications. As the device has a low power consumption, it is ideal for use in low-power, portable devices. It is also well suited for use in automatic test equipment, laboratory test systems and instrumentation. Furthermore, it can be used for audio and video signal conversion, and in process control systems. For example, the device can be used to provide a digital representation of an analog process control signal, and can be used to convert this signal into an analog voltage or current for use in the process.

The working principle of the AD664SD-UNI/883B is based on the fact that it converts digital signals into analog signals. The device contains 256 current sources which are used to convert a 4-bit digital code into an analog voltage or current. The analog voltage or current can then be used to control a process or a device. To convert the input data into the analog signal, the device uses an internal latch to store the input data, and a charge-balancing differential current output stage. The outputs of the device are buffered by a voltage-follower and rail-to-rail driver for optimal performance.

In summary, the AD664SD-UNI/883B is a 4-bit 4-channel voltage-output digital to analog converter. The device has a wide input voltage range of 3.3V to 5.5V, and offers low power consumption. It is suitable for use in a variety of applications, and can be used to convert digital signals into analog signals. The device uses an internal latch to store the input data, and a charge-balancing differential current output stage to convert the input data into an analog signal. This makes it an ideal choice for low-power, portable applications such as automatic test equipment, laboratory test systems and instrumentation.

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