AD7492BR-REEL

Number of A/D Converters:	1
Base Part Number:	AD7492
Supplier Device Package:	24-SOIC
Package / Case:	24-SOIC (0.295", 7.50mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	2.7 V ~ 5.25 V
Voltage - Supply, Analog:	2.7 V ~ 5.25 V
Reference Type:	Internal
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	Parallel
Input Type:	Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	1M
Number of Bits:	12
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction
AD7492BR-REEL is an analog-to-digital converter (ADC) which produces a digital representation of an analog input signal. It contains a 10-bit successive approximation ADC with a throughput of 50k samples/second and a single voltage reference. This device is typically used in various applications such as bridge sensor or strain gauge monitoring and data acquisition systems. This article provides an overview of the device’s application fields, working principle and features.

Application Field
AD7492BR-REEL is a highly accurate analog-to-digital converter, which is specifically designed to operate in applications with low power requirements. Its power consumption is only 1µA when in shutdown mode, making it ideal for use in battery-operated devices. Due to its wide input range, it can be implemented in applications where the input signal can vary widely, such as bridge sensors and strain gauges. It is also well-suited for use in industrial applications where accuracy is necessary, such as temperature measurement and process control. Additionally, the device can be used in medical systems and security systems, such as pulse oximetry and smoke detectors.

Working Principle
The working principle of the AD7492BR-REEL is based on the voltage-to-digital conversion process. The device contains a sample and hold (SAR) circuit that transfers a given input voltage to a reference voltage. This reference voltage is then compared to the analog input using a successive approximation algorithm. The 10-bit output of this conversion is obtained via a 3-wire serial interface. In addition, the device features a single external voltage reference and a single-ended or pseudo-differential input. The internal clock oscillator allows the part to operate without an external clock source.

Features
AD7492BR-REEL offers a variety of features that make it an excellent choice for many applications. It has a 0-5V input range and 10-bit resolution, which provides 8-bit accuracy. Additionally, the device has a low power consumption rating of only 1μA in shutdown mode. The single voltage reference allows for accuracy and stability, while the 3-wire serial interface makes it easy to interface to any microcontroller or processor. Finally, it has a -40°C to +85°C operating temperature range and a 0.5 LSB max integral linearity error, making it suitable for high-precision applications.
In conclusion, AD7492BR-REEL is a highly accurate analog-to-digital converter with a range of features specifically designed for low-power applications. Its 10-bit resolution and low power consumption allow for use in battery-operated devices and its single-ended or pseudo-differential input make it suitable for applications in industrial, medical and security systems.

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