MCP47FEB12A0-E/ST

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Data acquisition is a fundamental part of many digital system architectures. It involves the sampling, storing, transferring and presenting of data to a device or system. Digital to analog converters (DACs) are an integral part of data acquisition in digital systems. They are used to convert digital signals into analog electrical signals. The MCP47FEB12A0-E/ST is a 12-bit high speed DAC from Microchip Technology. This article will explore its application field and working principle.

Application Field

The MCP47FEB12A0-E/ST is an ideal choice for multi-channel data acquisition systems that require high accuracy and speed. It provides a rail-to-rail output voltage range, which allows it to be used as a current analog-to-digital converter or as a voltage-to-voltage DAC. The device is suited for precision measurement and calibration applications in low-voltage, low-power DC motor control systems, medical instruments, process control and factory automation. The DAC can be programmed to any value between 0 and 4095, which is a wide selection range for most data acquisition applications.

Working Principle

The MCP47FEB12A0-E/ST works with a three-stage voltage-control loop. The first stage is the input buffer, where analog signals are converted to digital values and stored. The second stage is a voltage-controlled waveform generator, which uses the stored digital values to produce analog waveforms. The waveforms are then filtered by the third stage, which is the low-pass filter. This final stage limits the highest frequency components of the waveforms and ensures that the analog signal is not corrupted. The DAC also contains a voltage reference, which is used to generate the output voltage.

The MCP47FEB12A0-E/ST has a variety of features such as SPI and I2C programming, fast start-up time, and supply voltage range from 2.7 to 5.5V. It can also be used in a variety of battery-powered applications and data acquisition systems, as it draws less than 1µA standby current. The device also has a power-up reset value of full-scale, so the output remains at full scale until the DAC is programmed by the controller.

Conclusion

The MCP47FEB12A0-E/ST is a 12-bit DAC from Microchip Technology which is suited for multi-channel data acquisition systems. Its features and specification make it an ideal choice for precision measurement and calibration applications. Its voltage-controlled loop and voltage reference ensure that the analog signals remain unaltered and remain within a wide performance range. The low standby current and wide supply voltage range make it suitable for battery-powered and data acquisition systems.

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