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Data Acquisition - ADCs/DACs - Special Purpose

The AMC1303E2520DWV is a high speed, precision analog-to-digital converter (ADC). This device is designed to measure a wide range of analog input signals, including AC voltage, DC voltage, current and temperature. The device operates on a 12-bit System-On-a-Chip architecture, and includes advanced features such as video-quality data acquisition, low-noise performance, field programmable gain, and intelligent digital filters. This device is ideally suited for applications in the medical, aerospace, defense, and industrial automation markets.

Application Field and Working Principle

The AMC1303E2520DWV is designed for a wide range of applications, including measurements of temperature, pressure, relative humidity, and position. It is suited for harsh environments, such as high temperatures and shock/vibration levels, that require high-level performance. Some applications include medical imaging, robotic navigation and warehouse automation. Due to its low power requirements, the device is also well-suited for battery-powered applications, such as medical monitoring.

The ADC operates by taking an analog input and converting it into a digital signal. The device features a 12-bit architecture and is capable of sampling up to 25Msps sample rate. It uses a “successive approximation” method to convert the analog input into a digital code. This means that the device samples the analog signal multiple times and compares the results to a reference value. The digital code produced is then coded in “differential non-return-to-zero” (DNRZ) format, and is then output as a digital word. The device works by using an onboard oscillator, which is programmed with a clock cycle that is proportional to the input frequency.

The device features an electro-static field protection (EFP) circuit, which helps protect the input port and ensure an accurate, stable reading. Additionally, the ADC features a programmable gain amplifier (PGA) circuit, which allows the user to adjust and meter the voltage level of the input signal. This feature is important in medical and industrial applications.

The device also features a high-speed serial interface, which allows for rapid communication between the device and a microcontroller. This allows the device to deliver data quickly and reliably. Additionally, the interface is compatible with multiple communication protocols, such as I2C, SPI, and UART.

The AMC1303E2520DWV can measure analog signals with a resolution of up to 12 bits ( 4095 steps ). The resolution of the analog-to-digital data acquisition is defined by the number of bits of resolution in the digital output, which is both programmable and adjustable. Additionally, the ADC can achieve a maximum sampling accuracy of ±1.0% and a maximum sample rate of 25Msps.

The device is designed to be flexible and easy to use. It is housed in a compact 24 pin 4 mm QFN package, which makes it suitable for a variety of applications. The device achieves low power consumption of only 0.08W while providing excellent performance and high accuracy.

In summary, the AMC1303E2520DWV is an advanced, high precision, low power ADC device ideally suited for applications that require low-noise performance and high-accuracy data acquisition. With its special features such as video quality data acquisition, field programmable gains, and intelligent digital filters, the device provides an ideal solution for critical, sensitive applications such as medical, aerospace, defense, and industrial automation.

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