MCP48CMB21-E/MF

Overview

The MCP48CMB21-E/MF is a single-channel, 12-bit Digital-to-Analog Converter (DAC) from Microchip Technology. It features Multi-Time Programmable (MTP) nonvolatile memory for persistent data storage and an SPI serial interface supporting up to 50 MHz write speeds. The device operates on a supply voltage range of 2.7V to 5.5V, with reduced specifications available between 1.8V and 2.7V. Key electrical parameters include a typical settling time of 16 µs, a maximum Integral Nonlinearity (INL) of ±1 LSB, and a gain error of ±1% of Full Scale Range (FSR). It offers selectable reference sources including VDD, external VREF, or an internal band gap, along with configurable power-down modes.

Feature Summary

• Integrates MTP nonvolatile memory allowing user programming of output values and configuration registers.
• Provides buffered voltage output with selectable gain options of 1x or 2x.
• Supports flexible reference selection using VDD, external VREF pin, or internal band gap voltage.
• Includes Power-on/Brown-out Reset protection and multiple low-power shutdown states.

Applications

• Set point or offset trimming in industrial control systems
• Sensor calibration circuits
• Low-power portable instrumentation
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'MF' against official datasheets to confirm package type and temperature grade. Ensure compatibility with system voltage levels and SPI timing requirements before integration. Confirm that the MTP programming voltage requirements align with the host controller's capabilities.

Selection Notes

Select this component when nonvolatile storage of DAC settings is required without external EEPROM. Compare against volatile variants like MCP48CVB21 if power loss persistence is unnecessary. Consider the MF package dimensions and thermal characteristics relative to board space constraints.

Part Context

This part belongs to the MCP48CXBXX family of 8/10/12-bit DACs. It shares architectural similarities with other members like MCP48CMB22 but differs in channel count and resolution. The 'E' indicates extended temperature range operation, while 'MF' denotes the specific package variant.

Replacement Considerations

Direct substitutes within the same family include MCP48CMB21-E/ML or MCP48CMB21-E/MF depending on package availability. For volatile applications, MCP48CVB21 series parts may be considered if nonvolatile retention is not needed.