MCP3426A3-E/MC

Number of A/D Converters:	1
Base Part Number:	MCP3426A3
Supplier Device Package:	8-DFN (2x3)
Package / Case:	8-VFDFN Exposed Pad
Operating Temperature:	-40°C ~ 125°C
Features:	PGA
Voltage - Supply, Digital:	2.7 V ~ 5.5 V
Voltage - Supply, Analog:	2.7 V ~ 5.5 V
Reference Type:	Internal
Architecture:	Sigma-Delta
Series:	--
Ratio - S/H:ADC:	--
Configuration:	MUX-PGA-ADC
Data Interface:	I²C
Input Type:	Differential
Number of Inputs:	2
Sampling Rate (Per Second):	15
Number of Bits:	16
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Analog to Digital Converters (ADC): MCP3426A3-E/MC Application Field and Working Principle

Analog to Digital Converters (ADCs) are electronic components which convert continuous physical quantities such as temperature or pressure into digital form. They are used in a wide range of applications to enable the precise measurement of the physical quantity. The Microchip MCP3426A3-E/MC is a single-channel, low-power and low-noise analog-to-digital converter (ADC) suitable for applications demanding precision and accuracy, such as data acquisition, instrumentation, and medical applications. This article will look at the application field and working principle of the MCP3426A3-E/MC.

Application Field

The MCP3426A3-E/MC is a versatile ADC suitable for a wide array of applications. It has excellent accuracy, even at low resolution, and a built-in temperature sensor which enables it to provide accurate temperature measurements. It is well-suited for cost-sensitive industrial, medical, and automated test equipment applications. The device features a low-power design and low audible noise, making it suitable for acoustic measurements. Additionally, the input resistance is higher than other ADCs, making it well-suited for applications which require a higher input impedance.

Working Principle

The MCP3426A3-E/MC is a successive approximation ADC. It operates by taking an analog voltage as its input, and then comparing it to a precision reference voltage using a digital-to-analog converter (DAC). The difference between the reference voltage and the analog input is then compared with a reference resistor. This process is repeated iteratively until the analog input is determined to the desired precision. The device has a built-in temperature sensor, which is an additional analog input that can be used for temperature measurements.

Conclusion

The MCP3426A3-E/MC can be used in many types of applications due to its high accuracy, low-noise design, and temperature sensor. It works by using a successive approximation ADC to compare a voltage signal to a reference voltage, and a reference resistor. This article has discussed the application field and working principle of the MCP3426A3-E/MC.

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