Allicdata Part #: | MCP3911A0-E/SS-ND |
Manufacturer Part#: |
MCP3911A0-E/SS |
Price: | $ 1.39 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Microchip Technology |
Short Description: | IC AFE 24BIT 125KSPS 2CH 20-SSOP |
More Detail: | 2 Channel AFE 24 Bit 8.9mW 20-SSOP |
DataSheet: | MCP3911A0-E/SS Datasheet/PDF |
Quantity: | 1572 |
1 +: | $ 1.26000 |
25 +: | $ 1.05134 |
100 +: | $ 0.95388 |
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Number of Bits: | 24 |
Number of Channels: | 2 |
Power (Watts): | 8.9mW |
Voltage - Supply, Analog: | 2.7 V ~ 3.6 V |
Voltage - Supply, Digital: | 2.7 V ~ 3.6 V |
Package / Case: | 20-SSOP (0.209", 5.30mm Width) |
Supplier Device Package: | 20-SSOP |
Base Part Number: | MCP3911A0 |
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MCP3911A0-E/SS is a Mixed-Signal Front End (MxFE) designed by Microchip Technology Inc. The device is a fully integrated device that performs both analog-to-digital and digital-to-analog conversions. It is equipped with powerful features for a wide range of applications that require accurate, low-power data acquisition. In particular, applications involving liquid or gas measurements such as irrigation systems, well monitoring systems, or pressure monitoring may benefit from the use of the MCP3911A0-E/SS.
The MCP3911A0-E/SS is composed of a 24-bit Delta-Sigma modulator and a 16-bit Analog-to-Digital Converter (ADC). The delta-sigma modulator is a precise, low-power, and low-noise circuit that performs analog-to-digital conversion with a step size of 29.4μV. It is capable of accepting three different input signals simultaneously: differential, single ended, or pseudo-differential. The ADC operates on a 3.2V supply and is capable of converting analog signals into digital data with 15 effective bits of resolution. The device also features a wide range of conversion gains from 2V/V to 4V/V, enabling it to match a wide range of analog inputs.
Features of MCP3911A0-E/SS
The MCP3911A0-E/SS offers a wide range of features that make it suitable for a variety of data acquisition applications. It includes an integrated programmable gain amplifier (PGA) and a low-noise differential input amplifier that can be used for measurements with a wide dynamic range. Additionally, the device features an internal digital filter for noise reduction and a temperature sensor that can compensate for temperature drifts. For its communication interface, the device offers an SPI or I2C interface for programming, reading, and transmitting acquired data.
Applications
The MCP3911A0-E/SS can be used for an impressive variety of applications. It can be used for monitoring pressure in wells, irrigation systems, and other water systems; for measuring air flow in environmental systems; for energy metering applications; and for sensing temperature and humidity. The device is also suitable for a variety of industrial applications as it can detect vibration and sound. Furthermore, it can be used in medical applications such as pulse oximetry and electrocardiograms. Finally, its low power consumption, wide dynamic range and integrated filter make it a great choice for internet of thing (IoT) applications.
Working Principle
The MCP3911A0-E/SS operates using a sigma delta modulator and an ADC. The sigma delta modulator is an analog-to-digital converter (ADC) that works by quantizing the input voltage into discrete levels of resolution. It works by first oversampling the input voltage then decimating the signal through a series of low pass filters. This can result in a signal that is much smoother than the original input. The ADC then takes over for the next step of conversion, which is converting the voltage levels into digital data.
The ADC uses a technique known as “successive approximation” to convert the analog signal into digital data. It works by comparing the input signal to a known reference voltage, successively narrowing down the signal until the closest value is reached. The MCP3911A0-E/SS is capable of 15-bit resolution, meaning it can accurately convert to a resolution of 32,768 steps. It also features a programmable gain amplifier (PGA) that can be used to lower the minimum resolution and increase dynamic range for better accuracy.
Conclusion
The MCP3911A0-E/SS from Microchip Technology is a powerful and versatile device designed for a wide range of data acquisition applications. It features a 24-bit delta-sigma modulator and a 16-bit ADC that allow it to convert analog signals into digital data with an excellent level of accuracy. It includes a range of built-in features such as an integrated low-noise differential input amplifier and a temperature sensor, as well as a wide range of programmable gain options, making it suitable for a variety of applications. The device is easy to use and can be used for applications involving liquid or gas measurements, energy metering, medical diagnostics, and more.
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