MCP4901T-E/SN

Digital To Analog Converters Overview

The MCP4901T-E/SN is an 8-bit single-channel 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 SPI-compatible serial interface supporting clock frequencies up to 20 MHz. The device utilizes a resistive string architecture with an external voltage reference input, offering selectable unity or 2x gain output. Key electrical specifications include a typical settling time of 4.5 µs, rail-to-rail output swing, and operation across an extended temperature range of -40°C to +125°C.

Digital To Analog Converters Feature Summary

• SPI compatible serial interface with 20 MHz clock support
• Rail-to-rail buffered voltage output amplifier
• External voltage reference input with selectable gain
• Software shutdown mode for power savings

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 'T' suffix indicates tape and reel packaging rather than tube packaging when sourcing components. Confirm the 'E' suffix corresponds to the industrial temperature grade (-40°C to +125°C). Ensure the 'SN' designation matches the required 8-pin SOIC package dimensions for PCB layout compatibility.

Digital To Analog Converters Selection Notes

Select this component for applications requiring an 8-bit resolution DAC with an external reference input. Compare against the MCP4801 series if an internal voltage reference is preferred instead of an external one. Consider the MCP4911 or MCP4921 variants if higher resolution (10-bit or 12-bit) is necessary for the specific application requirements.

Digital To Analog Converters Part Context

This part belongs to the MCP4901/4911/4921 family of single-channel voltage output DACs. It shares the same pinout, interface, and core functionality as the MCP4911 and MCP4921, differing primarily in resolution. The T-E/SN variant specifically denotes the tape-and-reel packaging option within the standard SOIC-8 footprint.

Digital To Analog Converters Replacement Considerations

MCP4901-E/SN (Tube Packaging)

Digital To Analog Converters FAQ

What is the default gain setting for the MCP4901?

The default gain setting is 2x.

How does the LDAC pin function?

The LDAC pin transfers data from the input register to the DAC register, allowing synchronous updates of the analog output.

What is the maximum SPI clock frequency?

The device supports an SPI clock frequency of up to 20 MHz.