MCP4911T-E/SN

Digital To Analog Converters Overview

The MCP4911T-E/SN is a single-channel, 10-bit buffered 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, selectable unity or 2x gain output, and rail-to-rail output swing. It supports both external voltage reference input and multiplier mode. The component is available in the SOIC-8 package with an extended operating temperature range from -40°C to +125°C.

Digital To Analog Converters Feature Summary

• Rail-to-rail buffered analog output amplifier
• SPI compatible serial interface with 20 MHz clock support
• Simultaneous latching of DAC output via LDAC pin
• Software programmable 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 that the ordering suffix 'SN' corresponds to the SOIC-8 package type as specified in the datasheet. Confirm the 'E' designation indicates compliance with RoHS standards. Ensure the 'T' suffix matches the required tape and reel packaging quantity for automated assembly processes.

Digital To Analog Converters Selection Notes

Select this component when a single-channel 10-bit resolution is required with an external voltage reference input. It is suitable for applications needing fast settling times and low power consumption. Consider the gain selection options and the specific package constraints if space is limited.

Digital To Analog Converters Part Context

This part belongs to the MCP4901/4911/4921 family of voltage output DACs. The MCP4911 specifically provides 10-bit resolution, distinguishing it from the 8-bit MCP4901 and the 12-bit MCP4921. All members share similar AC/DC performances and interface protocols.

Digital To Analog Converters Replacement Considerations

Public confirmed substitute part numbers: MCP4911-E/MC, MCP4911-E/MS, MCP4911-E/P.

Digital To Analog Converters FAQ

What is the function of the LDAC pin?

The LDAC pin is used to transfer the input latch register content to the DAC register, updating the VOUT output simultaneously.

How does the device handle power-up states?

An internal Power-on Reset (POR) circuit ensures the device powers up with a high output impedance until a valid write command is received.

Can the VREF input be buffered?

Yes, the user can configure the VREF input to bypass the buffer amplifier for unbuffered mode or use the buffered mode for high input impedance.