MCP4901-E/MS

Digital To Analog Converters Overview

The MCP4901-E/MS is a single-channel, 8-bit voltage output Digital-to-Analog Converter (DAC) manufactured by Microchip Technology. It utilizes a resistive string architecture and operates on a single supply voltage ranging from 2.7V to 5.5V. The device features an SPI-compatible serial interface supporting clock frequencies up to 20 MHz. Key electrical specifications include a typical settling time of 4.5 µs, a maximum Integral Non-Linearity (INL) error of ±0.125 LSB, and a Differential Non-Linearity (DNL) error of ±0.1 LSB. The analog output is buffered with rail-to-rail capability, allowing for selectable unity or 2x gain configurations.

Digital To Analog Converters Feature Summary

• Rail-to-rail buffered voltage output amplifier
• SPI compatible serial interface with 20 MHz clock support
• Simultaneous latching of DAC output via LDAC pin
• Fast settling time of 4.5 µs
• Selectable unity or 2x gain output configuration

Digital To Analog Converters Applications

• Set point or offset trimming
• Precision selectable voltage reference
• Motor control feedback loop
• Digitally-controlled multiplier/divider
• Calibration of optical communication devices

Digital To Analog Converters Procurement Notes

Verify the component authenticity by checking the manufacturer's marking against official datasheet specifications. Ensure the MSOP-8 package matches the required footprint and thermal characteristics. Confirm that the -E suffix indicates the extended temperature grade suitable for industrial environments. Cross-reference the ordering part number with the distributor's catalog to ensure compatibility with system design requirements.

Digital To Analog Converters Selection Notes

Select this component when an 8-bit resolution is sufficient for the application's accuracy requirements. The external voltage reference input allows flexibility in setting the full-scale range compared to internal reference variants. Consider the MSOP-8 package size constraints and the need for an SPI interface. Evaluate the power consumption and shutdown current if battery operation is a priority. Verify that the operating temperature range meets the environmental conditions of the final assembly.

Digital To Analog Converters Part Context

The MCP4901 is part of the MCP49x1 family, which includes 10-bit (MCP4911) and 12-bit (MCP4921) variants. These devices share identical pinouts, interfaces, and general performance characteristics, differing primarily in resolution. The family is designed for applications requiring low cost, low power, and high accuracy in signal conditioning and calibration tasks.

Digital To Analog Converters Replacement Considerations

Direct functional substitutes within the same package include the MCP4911-E/MS and MCP4921-E/MS, offering higher resolutions. For internal reference versions, consider the MCP4801-E/MS, though the reference architecture differs. Ensure any replacement maintains the SPI interface compatibility and voltage levels.