AD9634-170EBZ

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ADCs are necessary tools when a system requires the conversion of analog signals into digital signals. As such, many systems such as audio and video production, medical imaging and equipment, telecommunications, radar systems and others, require analog to digital conversion. The AD9634-170EBZ is a versatile analog-to-digital converter that makes it useful for a variety of applications. This article will discuss the AD9634-170EBZ\'s application field and working principle in detail.

The AD9634-170EBZ is a high performance, high speed 16-bit analog-to-digital converter (ADC). It features differential inputs and has a wide input bandwidth from dc to 170 rates, making it ideal for applications such as vibration sensor measurements, medical imaging, high-speed data acquisition, radar systems, and audio and video production. The AD9634-170EBZ has a programmable gain amplifier (PGA) in its input section that provides gain selections from 1 to 64. Additionally, the on-chip internal clock enables the use of clock speeds of up to 1000 MS/s, while the wide 200-900 mV common mode input voltage range and -2.0V to +2.0V differential input voltage range allows it to capture wide variety of analog signals. Also, the AD9634-170EBZ integrates a very low input noise LVPECL output driver, which outputs the digital data in a serial bit stream.

The AD9634-170EBZ provides flexible power management options which reduce the power consumption and enable the use of multiple power supplies. The low power modes of the device reduce the power consumption below 0.5 mW when the device is not actively converting. The power consumption of the device increases in line with the clock rates and input range that it is required to provide, and can be minimized by choosing a lower clock rate.

The AD9634-170EBZ can be integrated into a variety of analog-to-digital applications. It can be used for medical imaging applications such as tomography, chromosome detection, imaging of tumors, and other high speed data acquisition requirements. It is also suitable for vibration sensor measurements as it has a wide input bandwidth and a PGA with an adjustable gain control. Additionally, the AD9634-170EBZ is suitable for radar systems, telecommunications and audio and video production due to its wide input range and low noise output.

The working principle of the AD9634-170EBZ is based on a technique called a “flash conversion”. The device consists of an array of sampling capacitors which charge to specific input levels, enabling it to convert a wide range of analog signals. The sampling capacitor array is connected in parallel to two voltage reference sources, one for the positive input signal and one for the negative input signal. When a clock signal is applied, the sampling capacitors charge up in a process called “conversion” and the output bits of the device are shifted parallel out through the serial output pin. The output bits represent the sampled analog input signal converted into digital form.

In conclusion, the AD9634-170EBZ is a 16-bit analog-to-digital converter with a wide input range, programmable gain amplifier and a low power consumption. It is suitable for applications such as audio and video production, medical imaging and equipment, telecommunications, radar systems, and other high speed data acquisition requirements. The AD9634-170EBZ works by utilizing a flash conversion technique, where an array of sampling capacitors quickly charge and convert an analog signal into digital form.

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