MAX190BEWG+

Number of A/D Converters:	1
Base Part Number:	MAX190
Supplier Device Package:	24-SOIC
Package / Case:	24-SOIC (0.295", 7.50mm Width)
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:	Pseudo-Differential
Number of Inputs:	1
Sampling Rate (Per Second):	76k
Number of Bits:	12
Part Status:	Active
Packaging:	Tube

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Introduction:
Analog to Digital Converters (ADC) are often used to convert analog signals into digital signals that can be used by computers and other digital systems. Data Acquisition is the process used to capture and record real-world field data, such as temperature, pressure, humidity, light, humidity and vibration. The MAX190BEWG+ is a 16-bit high accuracy, eight-channel differential voltage ADC. This ADC is designed for remote sensing applications and comes with a wide range of features that allow users to acquire reliable and accurate data from a variety of different sources.

Features of the MAX190BEWG+:
The MAX190BEWG+ is a 16-bit ADC designed to offer high precision data acquisition for a range of industrial, automotive, military, and aerospace applications. It offers a number of features that include:

• Wide dynamic range of ±15V Input Voltage: Offering a range of 15V, the MAX190BEWG+ is capable of acquiring data from a variety of sources such as thermocouples, 4-20mA loops, and resistance thermometers.
• Ultra-Low Input Bias Current: With an input bias current of 5nA, the MAX190BEWG+ will produce high-accuracy data measurements, even in low-temperature environments.
• High Voltage Noise Rejection: The MAX190BEWG+ offers a wide range of noise rejection, allowing it to remain immune to fluctuations in the line voltage, ensuring that any acquired data is as accurate as possible.
• Integrated Temperature measurement: The integrated temperature measurement feature allows users to easily monitor environmental temperature.
• Low Power Consumption: The low power consumption enables the MAX190BEWG+ to be used in a range of environmental conditions, ensuring that data acquisitions can be done with minimal amounts of energy.

Applications of the MAX190BEWG+:
The MAX190BEWG+ can be used for a variety of applications, such as remote sensing, temperature measurement, pressure measurement, flow measurement, and vibration monitoring. In addition, it can be used for applications such as industrial control, automotive, and aerospace applications.

• Remote sensing applications: The MAX190BEWG+ offers a wide dynamic range of voltage inputs, enabling it to measure a variety of signals from remote locations. Its high voltage noise rejection capability allows it to accurately measure the signals from a variety of sources.
• Temperature measurement: The integrated temperature measurement feature makes it ideal for use in applications such as industrial and automotive applications where temperature measurements are needed. Its low power consumption also makes it suitable for applications where energy efficiency is a priority.
• Pressure measurement: The MAX190BEWG+’s wide dynamic range of voltage inputs makes it suitable for use in applications such as pressure measurement, allowing it to accurately measure the pressure of fluids and gases.
• Vibration monitoring: With its low noise rejection capability and integrated temperature measurement, the MAX190BEWG+ offers an accurate and reliable way of monitoring vibration in a number of applications, including automotive and aerospace.

Working Principle of the MAX190BEWG+:
The MAX190BEWG+ is designed to convert analog inputs into digital signals with 16-bit accuracy. Once the analog inputs are converted to digital signals, the data can be used by computer systems. The ADC works by sampling and quantizing the analog input by comparing the analog input with a reference voltage. The ADC then produces a digital output based on the voltage values of the inputs. The ADC is also designed with a sigma-delta converter which is used to reduce noise and improve the accuracy of the measurements. The sigma-delta technology converts a digital signal into an analog signal and then passes it through a filter. The filter then removes any noise and high-frequency information before the signal is converted back into a digital signal. The MAX190BEWG+ also features an internal track and hold circuit which allows it to accurately measure input signals, even when they are changing rapidly. This track and hold circuit also offers high-speed conversion and low-noise levels, making it an ideal ADC for remote sensing applications.

Conclusion:
The MAX190BEWG+ is an 8-channel differential voltage ADC designed for remote sensing applications. It offers a wide dynamic range of voltage inputs, ultra-low input bias current, high voltage noise rejection, integrated temperature measurement, and low power consumption. The ADC has a range of applications such as remote sensing, temperature measurement, pressure measurement, flow measurement, and vibration monitoring, making it suitable for a range of different applications. It also utilises a sigma-delta converter and track and hold circuit to insure a high degree of accuracy and reliability in the data acquisition process.

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