AD9625BBPRL-2.5

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The AD9625BBPRL-2.5 is a low-power, high-speed, high performance analog-to-digital converter (ADC) for a variety of applications. The product’s high-speed performance, low power consumption, and easy setup makes it ideal for many applications within the Data Acquisition field.

Applications

The AD9625BBPRL-2.5 is suitable for a variety of data acquisition, medical imaging, and industrial instrumentation applications, including:

• Industrial Controllers
• Data Acquisition and Process Control
• Medical Imaging Equipment
• Thermal Imaging
• Test & Measurement Equipment
• Metering Equipment
• Portable Data Acquisition Devices
• Audio/Video Monitoring

It is also suitable for a variety of consumer products and consumer electronics applications, such as:

• Digital Cameras
• Camcorders
• Optical Disc Players
• Digital Photo Frames
• Digital LCD/LED TVs
• Switched Mode Power Supplies
• LED Lighting
• Cell Phones/Smartphones
• Video and Audio Recorders/Players

Working Principle

The AD9625BBPRL-2.5 is a 14-bit a/d converter. It uses a pipelined architecture to achieve a maximum sampling rate of 2.5 GSPS. The converter contains an input sampling stage, analog front end, A/D conversion stage, and digital post-processing circuit.

The input sampling stage includes an input sample and hold circuit. The input sample and hold circuit is used to capture the analog signal continuously and store it in a sample and hold capacitor for further processing. This sample and hold capacitor then charges or discharges to track the analog input voltage. The input sample and hold circuit also includes a fully differential, low-noise amplifier that is used to amplify and condition the input signal.

The analog front end contains a linearization and calibration circuit, a clock muliplier, and a wideband equalization filter. The linearization and calibration circuit is used to linearize the input signal and to compensate for any nonlinearities introduced by the input stage. The clock multiplier circuit is used to increase the sampling rate of the ADC. The wideband equalization filter is used to reduce noise and distortion.

The A/D conversion stage performs the actual analog-to-digital conversion. This stage contains a flash analog-to-digital converter, a comparator, and a digital loop. The flash converter consists of multiple parallel comparators and provides a high speed conversion rate. The comparator is used to compare the input signal with a reference voltage to determine the digital output value. The digital loop is used to reduce noise and jitter in the digital output signal.

The digital post-processing circuit includes a digital filter and other circuitry used to reduce noise, distortion, and jitter in the digital output signal. This helps to improve the accuracy of the digital output signal. The digital output signal is then passed through additional digital post-processing stages before being presented to the output port of the ADC.

The AD9625BBPRL-2.5 ADC is an ideal choice for many applications in the field of data acquisition. Its high performance, low power consumption, and easy setup makes it suitable for a wide range of applications.

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