AD977AARSZ

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The AD977AARSZ is an ultra-fast 12-bit analog-to-digital converter (ADC) designed for a wide variety of industrial and commercial data acquisition applications. It is capable of sampling at up to 5.1 MHz with an effective number of bits (ENOB) of 11 bits or greater. It includes an on-chip reference and is accurate to within ±0.5∘C. The AD977AARSZ provides dynamic performance in precision data acquisition systems. Its excellent signal-to-noise ratio (SNR) and widely dynamic linearity (DNL) allow it to attain a high degree of accuracy even in dynamic data acquisition systems.

The wide dynamic range of the AD977AARSZ ensures a wide variety of industrial and commercial applications, ranging from automotive to medical. It is suitable for applications such as temperature and pressure measurements, strain gauge measurements, medical equipment, test and measurement applications, video imaging, automotive controls and many more. It is also ideal for multi-channel applications such as high-speed sampling systems in which multiple channels are sampled simultaneously.

The AD977AARSZ has an integrated reference voltage input and the output is fully differential. The device features a low power consumption and is pin-compatible with industry standard discrete 12-bit A/D converters. It includes an on-chip timer and clock generator and is capable of asynchronous conversions. The device is highly reliable and available in 28-pin plastic package.

The working principle of the AD977AARSZ is based on the segmented conversion method. The device divides the full-scale voltage range into 24 or 48 segments and then performs a series of conversions on each segment. For each segment, the A/D converter performs a single-shot conversion and then the result is compared with the reference voltage (or the target value). The discrepancy between the reference voltage (or the target value) and the result is called the error and is used to adjust the gain and offset settings of the device.

The output of the AD977AARSZ is an analog voltage that is proportional to the input voltage within a given range. The device can support both single and multiple input configurations. In single-input configuration, the device takes only one input and in multi-input configuration it takes multiple inputs. The device also features an on-chip threshold detector that helps in setting up automatic gain control, enabling dynamic range and autozero features. Moreover, the output of the device can be interfaced with different types of external digital and microcontroller based systems.

The AD977AARSZ is an integral part of many modern precision data acquisition applications. It provides high-accuracy and reliable performance in a variety of systems. With its integrated reference and on-chip clock generator/timer, it is an effective and efficient device for a wide range of industrial, commercial and medical applications. Furthermore, its low power consumption and pin-compatibility with industry standard discrete A/Ds make it an ideal choice for medium speed data acquisition systems.

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