AD679BJ

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The AD679BJ is a low voltage, low power microprocessor compatible 16-bit analog-to-digital converter (ADC) designed to convert a single, low level, non-multiplexed, single-ended or differential input into a 16-bit digital code. It features high speed, low power, low INL and DNL specifications, low noise, low cost and a single +5V power supply. This makes the AD679BJ an ideal choice for a wide range of applications in industrial, instrumentation, medical and consumer applications.

Design and Features:

The AD679BJ features an internal reference and an on-chip clock oscillator, with a frequency range from 312.5 to 500 kHz and an accuracy of ±1%. It also provides a wide range of input gains and differential input voltage ranges, allowing it to accommodate any signal level. The 1.2V internal reference voltage can be adjusted in increments of 1mV and is accurate to within ±0.5%.

The AD679BJ incorporates a single +5V supply and includes all the necessary protective functions such as overvoltage and undershoot protection, power sequencing protection and soft power up and down features. It also features a serial interface and an integrated analog-to-digital converter (ADC), making it easy to connect it to a microprocessor or other compatible devices. The device also includes a wide range of test modes and a self-calibration feature in order to ensure the highest accuracy in the analog to digital conversion.

Application Field:

The AD679BJ is most suited for applications in the industrial, instrumentation, medical and consumer markets. It provides high speed, low power and low INL and DNL specifications, making it an ideal choice for applications requiring precision measurements. It is suitable for data acquisition, process control, medical imaging, automotive and industrial systems. The combination of its features and capabilities also make the AD679BJ an ideal choice for measurements in laboratory and industrial environments.

The AD679BJ can be used for both single-ended and differential voltage measurement applications, such as in the fields of telecommunication, automotive, process control and medical instrumentation. It is also suitable for applications in the audio and video processing, biomedical and scientific fields, where precision measurements are required. Furthermore, the device can be used for sample and hold applications, pulse width modulation (PWM) and pulse density modulation (PDM) applications.

Working Principle:

The AD679BJ is an analog to digital converter (ADC) which utilizes a successive-approximation (SA) technique to convert a low-level non-multiplexed, single-ended or differential input signal to a 16-bit digital word. In this process, the analog signal is compared to an internal reference voltage set by the user through the programming of the onboard clock oscillator. The converter then progressively approximates the input voltage by making a series of successive comparisons between the input voltage and the reference voltage. At the end of the process, the final output is represented by a 16-bit digital word. The high speed, low power and low DNL and INL specifications make the AD679BJ an ideal choice for precision measurements.

Conclusion:

The AD679BJ is a low-power, high-speed 16-bit analog-to-digital converter. It is suitable for a range of data acquisition, process control, medical, automotive and industrial systems as well as applications in audio and video processing, scientific and biomedical fields. Its wide input voltage range, accuracy and low noise allows for measurement of low level single-ended or differential signal with precision. The device features anintegrated clock oscillator and voltage reference, on-chip power sequencing protection and a self-calibration feature. The combination of features makes the AD679BJ an ideal choice for precision measurements.

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