AD7734BRUZ-REEL

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The AD7734BRUZ-REEL is an Analog to Digital Converter (ADC) from the field of Data Acquisition. It is a low power, low cost, and low noise Sigma-Delta ADC. The converter has an on-board low-pass filter that supports the Nyquist requirements for a given sample rate, even when imaging radar signals. This includes high sample rates, low frequencies, and wide bandwidths.

Features

The AD7734BRUZ-REEL ADC enables applications such as imaging radar, servos, and decoders. It features a 1.8V to 3.3V / 5V dual analog supply, an on-chip low-pass filter, and an 8-bit or 10-bit output word. The ADC also has a temperature range of -40°C to +85°C, making it appropriate for many applications. In addition, the ADC is optimized for low power operation, drawing only 1.1 mW from a 3.3 V supply at 1MSPS, and 5.5 mW from a 5 V supply at 2MSPS.

Application areas

The AD7734BRUZ-REEL ADC has a wide range of applications that include motor control, aviation, automotive, military, and medical devices. The ADC can be used for monitoring motor temperature, controlling motor torque, stabilizing servo operation, and detecting hazardous material in aircraft. Additionally, the ADC is suitable for monitoring engine performance in automobiles, measuring time-of-flight in military radar systems, and monitoring medical equipment such as ECG and EEG.

Working principle

The working principle of the AD7734BRUZ-REEL ADC is based on a sigma-delta conversion (SDM) architecture. This architecture contains a modulator and a decimator filter. The modulator accepts the input signal, digitizes the analog waveform, and produces a sequence of 1s and 0s that are referred to as a bit stream. The decimator filter then filters out the noise and converted the bit stream into a digital output code.

In addition, the ADC has a programmable gain amplifier that can be used to set the input voltage range. The amplifier is used to amplify the input signal before it is fed to the modulator. This ensures that the ADC can handle higher input levels without being saturated and minimize noise in the output signal.

The AD7734BRUZ-REEL ADC also includes an on-board low-pass filter which is used to reduce the noise in the output signal. The filter can be programmed to meet the requirements of the input signal. This ensures that the ADC can handle wide bandwidths, high sample rates and low frequency components.

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