MCP4921T-E/MS Integrated Circuits (ICs)

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Introduction

The MCP4921T-E/MS is a low power, single channel, 12-bit Digital-to-Analog Converter (DAC) which helps in converting digital signals into analog signals with a resolution up to 12-bits. It is available as an 8-pin PDIP and SOIC package. The device has a voltage output range of 0 V to full scale, with a temperature coefficient of 0.04 %/°C. The input and output data format is in straight binary or space format. It is widely used in Audio applications, Industrial Control systems, etc.

Applications

The MCP4921T-E/MS is mainly used for data acquisition applications where high resolution and low power is important. Commonly used applications are:

• Audio Equipment
• Industrial Control Systems
• Communication Systems
• Automatic Test Equipment

Working Principle

The MCP4921T-E/MS operates by converting the digital signal into an analog voltage. The input digital signal is stored in an internal input register. A digital-to-analog converter (DAC) then processes the digital information stored in the input register in order to generate a corresponding analog voltage. The analog voltage is then output to the device’s output pin.The DAC uses a resistor network, composed of R1 and R2 to provide a voltage reference. The voltage reference is then applied to the DAC input pins. The voltage is then used to determine the digital value in the internal register. The DAC then generates an analog voltage that is proportional to the digital value in the internal register. This analog voltage is then output to the device’s output pin.The voltage reference provided by the resistor network is adjustable allowing the user to set a custom reference voltage. This feature allows the user to generate a wide range of analog voltage outputs from the device.

Conclusion

The MCP4921T-E/MS is a low power, single channel, 12-bit Digital-to-Analog Converter (DAC) which enables data acquisition applications with high resolution and low power consumption. It is available in 8-pin PDIP and SOIC packages and offers an adjustable voltage reference which allows users to set a custom reference voltage. It is widely used in Audio applications, Industrial Control systems, etc.

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