![MCP3422A2-E/SN Allicdata Electronics](https://files.allicdata.com/upload/common/default.jpg)
Allicdata Part #: | MCP3422A2-E/SN-ND |
Manufacturer Part#: |
MCP3422A2-E/SN |
Price: | $ 2.05 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Microchip Technology |
Short Description: | IC ADC 18BIT I2C 3.75SPS 8SOIC |
More Detail: | 18 Bit Analog to Digital Converter 2 Input 1 Sigma... |
DataSheet: | ![]() |
Quantity: | 50 |
1 +: | $ 1.86480 |
25 +: | $ 1.55081 |
100 +: | $ 1.41460 |
Number of A/D Converters: | 1 |
Base Part Number: | MCP3422A2 |
Supplier Device Package: | 8-SOIC |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
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): | 3.75 |
Number of Bits: | 18 |
Part Status: | Active |
Packaging: | Tube |
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Data Acquisition – Analog to Digital Converters (ADC) play a pivotal role in applications ranging from monitoring temperature to measuring current and voltage. One of the most popular devices in the ADC family is the MCP3422A2-E/SN, which is widely used in industrial, automotive, and medical applications due to its advanced features. This article provides an overview of the MCP3422A2-E/SN and its features, as well as its working principle and application field.
Features of the MCP3422A2-E/SN
MCP3422A2-E/SN is a delta-sigma analog-to-digital converter (ADC). It is designed for precision high-resolution analog-to-digital conversion and utilizes an advanced delta-sigma modulator architecture. It features a wide input range, up to ±50V, and supports an output resolution of up to 16-bits. It is also very power efficient offering low power dissipation of only 39 mA. The MCP3422A2-E/SN also integrates several Active Input Protection Circuits, which protect the device from undesired overload conditions.
In addition, MCP3422A2-E/SN offers a high sampling rate of up to 250k samples per second, and its easy-to-use serial configuration and readback registers make the device highly flexible. The device also includes a power-down feature and a low-power shutdown mode, making it suited for battery operated applications like data logging.
Working Principle of the MCP3422A2-E/SN
The MCP3422A2-E/SN is an analog-to-digital converter that converts input analog signals into a digital signal. It uses a delta-sigma modulator architecture, which allows it to achieve a high resolution of up to 16-bits. At the core of the modulator architecture, the converter utilizes a delta-quantization process, which “samples” the input signal at regular intervals and determines the difference between the current sample and the previous ones. This difference is representative of the error between the digital and analog signals, and the compressor circuit reduces this error by performing a weighted quantization of the input signal.
In addition to the simple delta-sigma modulator, the MCP3422A2-E/SN features a digital filter circuit. This filter is responsible for noise rejection, improving the dynamic range and increasing the resolution of the device. The filter is a multi-stage biquad filter which utilizes two digital biquads per stage and a corresponding delay element.
Application Field of the MCP3422A2-E/SN
MCP3422A2-E/SN is suitable for a variety of different applications, such as automotive monitoring systems, home automation, medical equipment, and industrial control. In automotive applications, the device is often used in engine diagnostics, monitoring and control systems, as well as in fuel cells, electric vehicles, and robotics. In medical equipment, it is often used in medical imaging systems, medical monitors, and medical lab equipment. In home automation and industrial control, it is often used in access control, home security, temperature sensors, and industrial process control mechanisms.
The wide range of features offered by the MCP3422A2-E/SN makes it one of the most popular analog-to-digital converters on the market. Its high resolution and high-speed performance, combined with its power efficiency, make it ideal for a wide array of applications.
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