AD7893AR-10REEL

Data Acquisition - Analog to Digital Converters (ADC) is a field of technology that is used to transform analog signals into digital information. The AD7893AR-10REEL is an integrated circuit from Analog Devices (ADI) that is used for this purpose.

The AD7893AR-10REEL is a 16-bit, high-speed, low-power, switch capacitor analog to digital converter. It includes a low-noise programmable-gain amplifier (PGA), two low-offset voltage reference inputs, a high voltage reference input, 16-bit sampled-and-hold track-and-hold circuits, a demultiplexer, and a CMOS SAR A/D converter.

The PGA provides a wide range of gains from 1 to 128, as well as an attenuation mode with gains ranging from 0.5 to 0.03125. The low-noise amplifier offers a wide dynamic range of 74dB and excellent signal-to-noise ratio. The amplifier also features variable Autozero, enabling the user to reduce input signal distortion. It has a maximum input frequency of 1MHz, allowing it to sample signal frequencies of 300kHz or higher.

The two low-offset voltage reference inputs of the AD7893AR-10REEL are both capable of accepting a wide range of reference voltages. The first reference input can accept a single-ended voltage reference from 0-4.095V, while the second reference can accept a differential voltage range from -2.048V to +2.048V. A high voltage reference input allows the device to accept higher reference voltages up to 8.2V.

The AD7893AR-10REEL is an ideal data acquisition solution for applications such as wireless sensing, medical instrumentation, audio and video systems, industrial control, and motor control. With its low power consumption and high-speed operation, it is well-suited for battery-operated systems.

The AD7893AR-10REEL operates by measuring the difference between a signal input and a reference input. The PGA amplifies the difference signal, and the track-and-hold circuits sample and hold the difference signal. This signal is then processed by the demultiplexer and fed into the CMOS successive approximation register (SAR) ADC. The ADC converts the analog signal into a 16-bit digital code, which is then output to the user.

The AD7893AR-10REEL is a powerful and reliable data acquisition solution for applications requiring analog to digital conversion of signals. With its low power consumption and high-speed operation, it is able to capture low-noise, high-resolution signals with little input signal distortion. Its wide range of voltage references and adjustable gain flexibility make it well-suited for a variety of applications.