AD7927BRUZ-REEL

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Data acquisition involves translating analog signals into digital information. An Analog to Digital Converter (ADC) is an electronic device used to accomplish this task. AD7927BRUZ-REEL stands out among ADC solutions as a highly accurate, low-power, 12-bit voltage-input ADC with on-chip sample-and-hold capability. Its small size, low power consumption, and high accuracy make it ideal for a wide range of applications.

Features

The AD7927BRUZ-REEL features a 12-bit resolution. It allows for sampling up to 12-bit resolution with an input voltage range of 0 mV to 3.6 V. The high accuracy of the AD7927BRUZ-REEL is achieved through its low Gain Error of ±0.5%, which is limited by its On-Chip Reference Voltage of 2.95 V. In addition, the low power consumption of only 1.96 mW makes it perfect for battery-powered applications. Finally, the minimal Operating Voltage of 1.7 V ensures reliable operation up to the highest voltage.

Applications

The AD7927BRUZ-REEL is suitable for a variety of applications due to its low power consumption and small size. These include medical and non-invasive patient monitoring, portable instrumentation, handheld devices, and industrial automation. Additionally, its high accuracy is particularly beneficial in applications that require precision measurements such as blood glucose monitors, digital panel meters, and metering applications.

Working Principle

At the heart of the AD7927BRUZ-REEL is the delta-sigma modulator. This modulator takes in the raw analog signal and converts it into a digital code. The delta-sigma modulator works by taking the difference between the input signal and an internal reference, as well as the difference between two states of the delta-sigma modulator. This difference is then quantized and converted into a digital code.

The AD7927BRUZ-REEL also has on-chip sample-and-hold capabilities for precise signal conversion. Sample-and-hold consists of two blocks: an Analog Multiplexer that samples the input signal and a Capacitor-Resistor Network that holds a constant voltage until the next sample is taken. This ensures precise signal conversion even when environmental or electrical interference occurs.

Final Word

The AD7927BRUZ-REEL offers a low-power, accurate, and compact solution to digital signal conversion needs. Its features, such as on-chip sample-and-hold and precise Gain Error, make it ideal for a range of applications. As the demand for precise digital information grows, so does the need for reliable, low-power solutions such as the AD7927BRUZ-REEL.

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