AD7891ASZ-2REEL

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Data Acquisition System (DAS)
Number of Channels:	8
Resolution (Bits):	12 b
Sampling Rate (Per Second):	500k
Data Interface:	Serial, Parallel
Voltage Supply Source:	Single Supply
Voltage - Supply:	5V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	44-QFP
Supplier Device Package:	44-MQFP (10x10)
Base Part Number:	AD7891

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Data Acquisition - ADCs/DACs - Special Purpose

The AD7891ASZ-2REEL is a specialized segment in the data acquisition and control industry. It is a high-resolution digital Analog-to-Digital Converter (ADC) module, developed by Analog Devices. This module combines precision, performance, and ease of use in an elegant and compact design.The AD7891ASZ-2REEL is designed for a variety of applications including automotive motor control, industrial instrumentation and monitoring, and medical diagnostic instruments. It is an ideal module for use with microcontroller or other embedded systems for embedded development projects. It is also frequently used in data acquisition applications that require high accuracy and precision.The AD7891ASZ-2REEL has 16-bit resolution at its core, combined with a convenient 8-bit parallel header. This module also offers a maximum input voltage of 3.6V, and a built-in reference voltage of 3.0V. The module operates from -40C to 85C and supports sample rates up to 10MHz. It also comes with an internal 0.1uF decoupling capacitor.The module is well-suited for industrial and automotive applications, including motor control, instrumentation, and medical diagnostic instruments. It is also ideal for data acquisition systems requiring high accuracy and precision. The module is available in two distinct packages - SOT-23-6 and MSOP-8. The AD7891ASZ-2REEL’s working principle is based upon the standard voltage-to-digital conversion principle. It achieves a 16-bit resolution by taking multiple samples of a given input voltage at select intervals. An internal sample and hold circuit controls the sample timing, and the conversion results are represented as a voltage, which is then digitally encoded and stored in the internal memory.The AD7891ASZ-2REEL comes with an onboard reference voltage source, with a base value of 3.0V. This reference is used to provide a stable input range, with 16-bits of resolution. This high accuracy is achieved by using a single-ended conversion method, with a reference voltage of 3.0V and a maximum input voltage of 3.6V.The module also comes with an integrated serial pilot-board interface (SPBI) to communicate with the module. This interface is typically used for configuration, calibration, and control, making it easier to integrate with a microcontroller or embedded system. The module also has a multiplexed data-bus architecture which allows for application specific protocol implementations. The module supports a wide range of communication protocols, including SPI, I²C, and UART. This feature provides flexibility for connection to a variety of systems and systems requirements.As with any analog-to-digital conversion process, the AD7891ASZ-2REEL module is subject to noise interference in certain applications. To combat this noise, the module is designed with a maximum signal-to-noise ratio of 100dB. This ensures that low-level signals can be faithfully digitized without the fear of interference or distortion.To summarise, the AD7891ASZ-2REEL module is an ideal choice for industrial, automotive, and medical applications requiring high accuracy and precision. With its 16-bit resolution and wide range of communication protocols, the module is able to easily integrate and control analog signals in a given application. Additionally, the integrated reference voltage and low signal-to-noise ratio ensures that sensitive signals are digitized with maximum accuracy.

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