AD7893ARZ-5REEL

Number of A/D Converters:	1
Base Part Number:	AD7893
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	5V
Voltage - Supply, Analog:	5V
Reference Type:	External
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	SPI
Input Type:	Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	117k
Number of Bits:	12
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Data Acquisition (DAQ) is a term used to describe a very broad field of electronic devices that measure, record, and analyze various types of data for a variety of applications. One of the important components in data acquisition systems is the Analog-to-Digital Converter, or ADC. AD7893ARZ-5REEL is an efficient and highly functional ADC designed to provide excellent accuracy and flexibility. This ADC can be used in a variety of applications including industrial, medical and aerospace. In this article, we will discuss the application field and working principle of AD7893ARZ-5REEL, and how this ADC is used to achieve efficient data acquisition.

Application Field of AD7893ARZ-5REEL

AD7893ARZ-5REEL is a 12-bit single-channel data acquisition device that offers high accuracy and high speed for various measurements. This device is suitable for a wide range of applications that require accurate analog-to-digital conversion such as industrial automation, medical instrumentation, and aerospace. For example, the device can be used in a motor control system, where an external current measurement is required to ensure accurate control of the motor parameters. The device can also be used in medical devices such as X-Ray and MRI systems, where precise analog-to-digital conversion is needed. Furthermore, the device can be used in aerospace applications, where precise data acquisition is essential.

Working Principle

The signal is first applied to the input of the AD7893ARZ-5REEL. Then an amplifier is used to convert the signal to the appropriate signal level and to increase the signal to noise ratio. Once the signal is amplified, it is fed to a 16-bit successive approximation register (SAR) which is the core of the ADC. The SAR is used to convert the signal from analog to digital, and generates a 12-bit conversion result. The ADC then performs signal deemphasis, noise shaping, and level shifting, to improve the signal quality before the conversion result is output.The AD7893ARZ-5REEL supports a wide range of input signals, from ±400mV to ±4V full scale inputs, as well as two-wire and three-wire serial interfaces for communication with the microcontroller. The device also has a wide bandwidth, with a maximum conversion rate of up to 2MSPS and a power consumption of less than 150 mW.

Conclusion

The AD7893ARZ-5REEL is an efficient, highly functional ADC offering excellent accuracy and flexibility. The device is suitable for a wide range of data acquisition applications, including industrial automation, medical instrumentation, and aerospace. The ADC has a wide input range, high bandwidth and low power consumption, making it an ideal choice for accurate analog-to-digital conversion. Furthermore, the device supports two-wire and three-wire serial interfaces for communication with the microcontroller, and is easy to use and configure.

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