Analog Devices Inc. AD7884APZ

Analog Devices Inc. Part Number AD7884APZ（Data Acquisition - Analog to Digital Converters (ADC)）, developed and manufactured by Analog Devices Inc., distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.

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Introducing the Analog Devices Inc. AD7884APZ, a cutting-edge analog-to-digital converter (ADC) that revolutionizes data acquisition in various industries. With its exceptional performance and versatile features, this ADC is designed to meet the demanding requirements of today's applications. The AD7884APZ boasts a 16-bit resolution, providing high-precision conversion of analog signals into digital data. Its impressive sampling rate of 250 kilosamples per second ensures accurate and real-time data acquisition. Additionally, this ADC offers a wide input voltage range of ±10V, enabling it to handle a broad range of analog signals. One of the standout features of the AD7884APZ is its low power consumption, making it ideal for battery-powered applications. Its power-down mode further enhances energy efficiency, extending battery life and reducing overall power consumption. This ADC is suitable for a wide range of application fields. In industrial automation, it can be used for process control, data logging, and monitoring systems. In the medical field, it can be utilized for patient monitoring, diagnostic equipment, and medical imaging. Additionally, it finds applications in automotive systems, communications equipment, and scientific instruments. The AD7884APZ is designed with reliability and durability in mind. It operates over a wide temperature range and is available in a small form factor, making it suitable for space-constrained environments. In summary, the Analog Devices Inc. AD7884APZ is a high-performance ADC that offers exceptional precision, low power consumption, and versatility. It is the perfect solution for a wide range of applications in various industries, ensuring accurate and reliable data acquisition.

Analog to digital Converters (ADCs) are electronic devices used to convert continuously varying Analog signals into discrete Digital signals. This process usually includes three steps: sampling, quantization and coding. Sampling means capturing the instantaneous value of an analog signal at a fixed frequency; Quantization approximates these transient values to the nearest discrete level; Finally, the encoding converts the quantized value into binary numeric form.

ADCs（Analog-to-digital Converters） is widely used in a variety of scenarios, such as audio and video recording, measuring instruments, wireless communications, medical devices, and automotive electronics. For example, in audio devices, the ADC is responsible for converting the sound signal captured by the microphone into a digital format for easy storage and transmission.

• 1. What process converts analog to digital?

  There are three basic processes for analog to digital conversion:
  The first process is "sampling", which is to extract the sample value of the analog signal at equal intervals to turn the continuous signal into a discrete signal.
  The second process is called "quantization", which is to convert the extracted sample value into the closest digital value to represent the size of the extracted sample value.
  The third process is "encoding", which is to represent the quantized value with a set of binary digits. After these three processes, the digitization of the analog signal can be completed. This method is called "pulse encoding".
  After the digital signal is transmitted to the receiving end, a restoration process is required, that is, the received digital signal is converted back to an analog signal so that it can be understood by the receiver. This process is called "digital-to-analog conversion", which reproduces it as sound or image.

• 2. How to convert analog to digital without ADC?

  Analog to digital conversion without ADC can be achieved through PWM circuit. This method is suitable for those main control chips without built-in ADC, which needs to be solved by two GPIOs and an operational amplifier. The basic principle is to use an integral circuit to convert the PWM wave into a smooth DC voltage, and then continuously adjust the PWM duty cycle by comparing it with the voltage to be measured until the output of the comparator changes from 0 to 1, and record the current PWM duty cycle, thereby realizing the measurement of the analog voltage.

• 3. What is the principle of analog-to-digital converters?

  The working principle of the analog-to-digital converter (ADC) is to convert analog signals into digital signals through four processes: sampling, holding, quantization, and encoding.
  The main components of the analog-to-digital converter include samplers and quantizers, which work together to convert continuous analog signals into discrete digital signals. This process requires a reference analog quantity as a standard, and the maximum convertible signal size is usually used as the reference standard. The basic principles of the analog-to-digital converter can be summarized as follows:
  Sampling: The analog-to-digital converter first samples the input analog signal through a sampling circuit, that is, discretizes the analog signal on the time axis.
  Holding: The sampled signal is held by the holding circuit for the next quantization and encoding process.
  Quantization: The quantization process is to divide the amplitude of the sampled and held analog signal into a finite number of le