MCP4911T-E/MS

Digital To Analog Converters Overview

The MCP4911T-E/MS is a single-channel, 10-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 SPI-compatible serial interface supporting clock frequencies up to 20 MHz. The device utilizes a resistive string architecture with selectable unity or 2x gain output settings. Key electrical specifications include a typical settling time of 4.5 µs, a maximum Integral Non-Linearity (INL) error of ±3.5 LSB, and a maximum Differential Non-Linearity (DNL) error of ±0.5 LSB. It supports software shutdown mode for power reduction and includes a Power-on Reset circuit.

Digital To Analog Converters Feature Summary

• SPI compatible serial interface with support for Mode 0,0 and Mode 1,1 configurations
• Rail-to-rail buffered analog output amplifier with selectable 1x or 2x gain
• External voltage reference input allowing flexible full-scale range configuration
• Software programmable shutdown mode for significant power savings

Digital To Analog Converters Applications

• Set point or offset trimming in industrial control systems
• Precision selectable voltage reference generation
• Motor control feedback loop signal conditioning
• Digitally-controlled multiplier or divider circuits
• Calibration of optical communication devices

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix 'T' indicates tape and reel packaging and 'E' denotes the extended temperature grade (-40°C to +125°C). Confirm the '/MS' suffix corresponds to the MSOP-8 package type. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Digital To Analog Converters Selection Notes

Select the MCP4911 when a 10-bit resolution is required for applications needing moderate accuracy without the cost of higher-resolution DACs. Choose this part over the MCP4811 if an external voltage reference is preferred over an internal one. Consider the MCP4921 if 12-bit precision is necessary, or the MCP4901 if lower resolution suffices. Ensure the system can accommodate the external VREF pin requirement.

Digital To Analog Converters Part Context

This component belongs to the MCP49x1 family of single-channel DACs, which also includes the 8-bit MCP4901 and 12-bit MCP4921. Unlike the MCP48x1 series, the MCP49x1 devices utilize an external voltage reference input rather than an internal fixed reference. This family shares identical pinouts and SPI command structures, facilitating easy upgrades between resolution levels within the same package types.

Digital To Analog Converters Replacement Considerations

The MCP4811 serves as a functional replacement if an internal 2.048V reference is acceptable instead of an external one. The MCP4921 offers higher 12-bit resolution but maintains the same pinout and interface. The MCP4901 provides 8-bit resolution as a lower-cost alternative. Verify that any substitute matches the MSOP-8 package dimensions and thermal characteristics.