AD9238BSTZRL-20

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The AD9238BSTZRL-20 is a part of a family of high performance, low power, 8-bit, pipelined analog-to-digital converters (ADCs). It offers the highest resolution, lowest power, and best performance available in a monolithic 8-bit ADC. The versatile performance of the AD9238BSTZRL-20 makes it suitable for a wide range of applications, including data acquisition systems, wireless/wireline communications, industrial process control, medical imaging, and space/avionics (digital RF conversion). It is also suitable for applications requiring high performance in a small size.This ADC features 8-bit resolution, with an input voltage range of 0 to 5 V. It has an integrated voltage regulator, which can be used to supply a stable power source if required. The AD9238BSTZRL-20 also has an integrated low-noise charge pump phase-locked loop (PLL) for generation of the necessary clock signals for operation.The working principle of the AD9238BSTZRL-20 is based on its pipelining architecture. The input analog voltage is sampled and converted into a digital output in four stages. The first stage is an input sample and hold. The second stage is an ADC. The third stage is a digital comparator which compares the digital output from the ADC with a reference voltage. The fourth stage is the output mux which combines the digital data from the comparator with the digital data from the ADC and produces the 8-bit digital output.The input sample and hold is responsible for storing the input analog voltage until it can be processed by the ADC. After being sampled, the analog-to-digital converter takes the sample and converts it into a digital output. The digital comparator compares the digital output of the ADC with a reference voltage and determines whether a bit should be set high or low in the output digital value. Finally, the output mux combines the digital data from the comparator and the digital data from the ADC and produces the 8 bit digital output.The AD9238BSTZRL-20 is designed to be an integrated, low power solution for applications requiring high performance and low power consumption. The ADC offers excellent dynamic performance with an overall noise floor of 10 µV and a 78 dB SNR at 85 MHz. The design also provides low power consumption with a wide operating temperature range of −55°C to +125°C.In addition to its low power consumption, the AD9238BSTZRL-20 also offers a wide range of features and benefits, such as a flexible architecture for customizing applications and the ability to interface with a wide range of external components, including DSPs, microcontrollers, FIFOs, and more. The ADC also includes an advanced auto-calibration algorithm which ensures optimal accuracy and performance. Lastly, the ADC features a high-speed output data interface with speeds as fast as 200 MS/s.The AD9238BSTZRL-20 is an excellent choice for low power, high performance, and low cost applications requiring 8-bit resolution. Its performance and features make it a perfect choice for data acquisition systems, wireless/wireline communications, industrial process control, medical imaging, and space/avionics (digital RF conversion).

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