MCP4802-E/P

Digital To Analog Converters Overview

The MCP4802-E/P is a dual-channel, 8-bit buffered voltage output Digital-to-Analog Converter (DAC) manufactured by Microchip Technology. It operates on a single supply voltage ranging from 2.7V to 5.5V and features an internal 2.048V voltage reference. The device utilizes a resistive string architecture with SPI-compatible serial interface support up to 20 MHz. Key electrical specifications include a typical settling time of 4.5 µs, INL error of ±0.125 LSB, and DNL error of ±0.1 LSB. It supports selectable unity or 2x gain outputs and includes individual channel shutdown modes for power reduction.

Digital To Analog Converters Feature Summary

• Dual-channel 8-bit resolution with rail-to-rail buffered voltage outputs
• Integrated 2.048V internal voltage reference with low temperature coefficient
• SPI compatible serial interface supporting Mode 0,0 and Mode 1,1
• Individual channel software shutdown capability for power optimization

Digital To Analog Converters Applications

• Set point or offset trimming in industrial control systems
• Sensor calibration for temperature, pressure, and humidity signals
• Portable instrumentation powered by battery supplies
• Calibration of optical communication devices

Digital To Analog Converters Procurement Notes

Verify the package type matches the required PCB footprint, as the -E/P suffix indicates an 8-pin PDIP package. Confirm that the operating temperature range of -40°C to +125°C meets the environmental requirements of the target application. Ensure the SPI timing parameters align with the host microcontroller's clock speeds.

Digital To Analog Converters Selection Notes

Select this component when dual-channel 8-bit resolution is sufficient for the application. Consider the MCP4812 or MCP4822 if higher resolution (10-bit or 12-bit) is required. Verify that the internal 2.048V reference meets accuracy needs; otherwise, external reference options like the MCP49 series may be more appropriate. Check package availability if surface mount is preferred over through-hole.

Digital To Analog Converters Part Context

The MCP4802 belongs to the MCP48X2 product family, which also includes the MCP4812 (10-bit) and MCP4822 (12-bit). Single-channel variants are available as the MCP4801, MCP4811, and MCP4821. The family shares similar pinouts and SPI interfaces, facilitating design scalability across different resolution requirements while maintaining compatibility.

Digital To Analog Converters Replacement Considerations

Direct functional substitutes within the same family include MCP4802-E/SN (SOIC-8) and MCP4802T-E/MS (MSOP-8). For non-volatile memory integration, consider the MCP48FEB02 series. Cross-manufacturer replacements require verification of pinout compatibility, voltage ranges, and SPI protocol adherence.