MCP3421A3T-E/CH

Number of A/D Converters:	1
Base Part Number:	MCP3421A3
Supplier Device Package:	SOT-23-6
Package / Case:	SOT-23-6
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:	PGA-ADC
Data Interface:	I²C
Input Type:	Differential
Number of Inputs:	1
Sampling Rate (Per Second):	3.75
Number of Bits:	18
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The MCP3421A3T-E/CH is a precision low-power, single-channel delta-sigma A/D converter with differential inputs, typically used for data acquisition applications. It is designed for fast and cost-effective conversions of small analog signals such as strain gauge, bridge, and temperature sensor output into digital data. The MCP3421A3T-E/CH ADC includes a core analog-to-digital converter (ADC) to convert an input analog voltage into a digital output code, a voltage reference and an optional integrated temperature sensor. The ADC can be selected with a resolution of either 12, 14, or 16 bits. The 12-bit resolution operates over an input voltage range of 0 to 5V (1096µV LSB) while 14-bit resolution has a smaller voltage range of 0 to 4V (61µV LSB). The integrated, on-chip temperature sensor can measure temperatures from -55 to 125°C in the 2, 4, and 8-bit modes. The ADC also features a wide supply voltage range from 2.7 to 5.5V and can operate up to a maximum sampling rate of 143ksps.The ADC interface is SPI and the device provides an SPI port that is compatible with a wide range of microcontrollers. The MCP3421A3T-E/CH supports a range of external voltage references, allowing the main power supply voltage to be monitored and regulated to improve system accuracy and stability. The MCP3421A3T-E/CH is designed to operate over a wide breadth of temperatures, making it suitable for most real-world applications. One key feature of the device is its low power consumption, allowing it to be used in battery-operated systems. The MCP3421A3T-E/CH is ideal for a variety of data acquisition applications, such as strain gages, temperature sensors, and industrial control systems. The MCP3421A3T-E/CH converts the incoming analog signal to digital data through a three-step process. First, a low-noise integrated amplifier amplifies and filters the input signal. Second, a differential-input sigma delta modulator digitizes the input signal at a selectable sample rate. Finally, the data is processed through an internal conversion routine that outputs a 12-, 14-, or 16-bit digital code. The MCP3421A3T-E/CH integrates high-accuracy, wide-range reference sources to achieve the stable, accurate performance of high-end systems. The reference sources are optimized for wide temperature drift, offering superior performance in challenging environments.The MCP3421A3T-E/CH is an ideal choice for high-end analogue-to-digital signal conversion applications. With its high accuracy and low-power operation, it is suitable for a wide range of industrial and medical applications. Its SPI interface also allows for easy integration into most microcontroller applications.

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