MCP4821T-E/SN

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Data Acquisition - Digital to Analog Converters (DAC) provide an interface between digital systems and analog systems. The MCP4821T-E/SN is an example of one such device. It is a dual channel, low power, 100kHz, 12-bit Digital to Analog Converter that is specially designed for industrial and automotive applications. This device offers improved signal to noise performance, high channel-to-channel isolation and a wide operating voltage range.

The MCP4821T-E/SN is a single-channel, 12-bit, voltage-mode CMOS Digital to Analog Converter. It is designed to allow two channels to be operated independently and simultaneously. Each channel can be software-programmed to either unipolar or bipolar output ranges. The output voltage is proportional to the digital code loaded in the DAC via its serial interface.

The MCP4821T-E/SN works on the basic concept of analog output. In a digital-to-analog converter, the input is typically a digital signal (in the form of a binary code) and the output is an analog voltage. The analog output is obtained by converting the digital input word into its corresponding analog output voltage. The MCP4821T-E/SN converts the digital input word into an analog voltage by using the current output (Iout) from the composite current source. The device provides two separate digital-to-analog converters, each having a buffered voltage output and a buffered current output. The voltage output is determined by the following equation:

Where Iout is the current output of the DAC, R is the external resistor, and Vin is the voltage input. The current output is proportional to the digital word loaded in the DAC. The digital input is a 12-bit word that is loaded into the DAC via a serial interface.

The device offers the following features: high resolution (12-bits), low power (24 mW typical), flexibility (unipolar/bipolar output ranges), wide operating voltage range (2.7 to 5.5V), low supply current (0.3uA typical standby), high variable reference voltage range (0 to +Vdd), wide source/sink capability (20uA/20mA typical), and among others.

In addition to the above, the MCP4821T-E/SN contains other features like power-on reset, under-voltage lockout, long-term stability and temperature drift. Its data acquisition features make it ideal for industrial and automotive applications. Its power consumption and wide operating voltage range are advantages in battery-powered applications. Its flexible output ranges allow for easy integration with other components.

The MCP4821T-E/SN is a single-channel, voltage output 10-bit digital-analog converter. Its wide operating voltage range, small package outline and low power consumption make it suitable for a variety of industrial and automotive applications. Its onboard data acquisition features enable precise control and accurate measurement of voltage. Its small size and low power consumption enable integration into a wide range of projects, making it a versatile and popular choice for digital-to-analog conversion.

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