AD7876BNZ

Number of A/D Converters:	1
Base Part Number:	AD7876
Supplier Device Package:	24-PDIP
Package / Case:	24-DIP (0.300", 7.62mm)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	±5V
Voltage - Supply, Analog:	±5V
Reference Type:	Internal
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	SPI, Parallel
Input Type:	Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	100k
Number of Bits:	12
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Analog to Digital Converters (ADC)

Analog-to-Digital Converters (ADC) are important components in Data Acquisition systems that take analog signals from sensors as input and convert them into digital formats for processing. AD7876BNZ is one type of such converter with a high resolution and a wide range of applications. This article will discuss the application field and working principle of the AD7876BNZ.The AD7876BNZ is an 18-bit analog-to-digital converter that features a low-noise and low-power performance. It provides a wide range of input voltage range, high conversion speed and excellent linearity. The converter provides a digital output that is compatible with logic, as well as a high-speed serial interface over I2C and SPI protocols.The AD7876BNZ is suitable for a wide range of applications, especially in industrial, automotive, and medical equipment. In the industrial field, it can be used for inventory control and machine diagnostics. In the automotive industry, it can be used for engine control and emissions monitoring. In medical applications, the converter can be used for physiological monitoring, medical imaging, and laboratory equipment. In order to better understand the working principle of the AD7876BNZ, it is important to first understand the process of analog-to-digital conversion. This process involves the conversion of an analog signal into a digital signal for processing. The converter consists of an analog input stage, analog-to-digital converter core, reference circuit, and output interface. The analog input stage of the AD7876BNZ consists of a sample-and-hold circuit, followed by a buffer amplifier and a programmable gain amplifier. The sample-and-hold circuit is responsible for capturing the analog signal and storing it for conversion. The buffer amplifier then amplifies the signal and passes it to the core of the converter. The core of the converter contains successive approximation register (SAR) algorithm, which is responsible for the conversion of the analog signal into digital signal.The reference circuit of the AD7876BNZ is responsible for providing the reference voltage signal to the SAR algorithm and helps to determine the gain and offset errors during the conversion process. The output interface provides the digital output in either a logic-compatible or SPI-compatible format.Overall, the AD7876BNZ is an excellent converter with a wide range of applications in the industrial, automotive, and medical fields. It offers a high-resolution 18-bit conversion, a low-noise and low-power performance, a wide range of input voltage range, and a fast conversion speed. As well as providing a digital output that is compatible with logic and SPI protocols, the converter also has an excellent built-in reference circuit to help ensure accuracy during conversion.

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