AD7988-5BRMZ

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Data acquisition is the process of measuring physical characteristics like temperature, pressure and strain. Data acquisition can be performed in analog as well as digital formats. For many applications, converting analog signals to digital formats is required. Analog to Digital Converters (ADCs) can be used for this purpose. AD7988-5BRMZ is an ADC chip manufactured by Analog Devices. This article will discuss the application field and the working principle of AD7988-5BRMZ.

AD7988-5BRMZ are low-power, low-voltage 10-bit analog-to-digital converters (ADCs) that are designed to operate from a single +2.7 V to +3.3 V power supply. These ADCs feature an integrated track-and-hold amplifier and a high-speed sample-and-hold amplifier for improved noise reduction and accuracy. They are ideal for cost-sensitive applications like medical/healthcare, consumer and communications systems as well as industrial monitoring. They also feature a low power shutdown mode to conserve power and extend battery life.

The AD7988-5BRMZ has a low input voltage range of 0 V to +3.3 V. It supports a range of input data formats including serial SPI, parallel, and offset binary output. AD7988-5BRMZ provides excellent linearity, wide dynamic range, and low power consumption. With its 10-bit resolution, it can convert analog input signals into 10-bit digital output codes with high resolution.

The AD7988-5BRMZ ADC operates using a successive-approximation register (SAR) architecture. This architecture utilizes an 8-bit max observer to convert an analog input signal into a 10-bit digital output code. The analog signal is first fed into the ADC where it is digitized by the SAR. The output of the SAR is then fed into the max observer. The max observer is a register that monitors the output of the SAR and compares it to a reference voltage (VREF). The reference voltage is generated either internally or externally. The max observer continuously updates the 10 bit output code until the output of the SAR and the reference voltage are equal.

The AD7988-5BRMZ also features a power management system that allows the user to select optimal power consumption by deducting the power consumption of unused functions. The sensor can be powered up and down with a single signal or be powered up or down with two or three signals. This flexibility allows for maximum power conservation when using the ADC. Additionally it features an optional sleep mode that can be used to reduce power consumption during inactive periods. The AD7988-5BRMZ is also able to switch from battery to external power without interruption.

In summary, AD7988-5BRMZ is a low-power, low-voltage 10-bit ADC that is designed for cost-sensitive applications like medical/healthcare, consumer and communications systems as well as industrial monitoring. Its SAR architecture offers excellent linearity, wide dynamic range and low power consumption. Its power management system enables the user to select optimal power consumption by deducting the power consumption of unused functions. It also features an optional sleep mode, allowing the device to conserve power during inactive periods.

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