MCP48CMD02-E/UN

Overview

The MCP48CMD02-E/UN is a dual-channel, 8-bit buffered voltage output Digital-to-Analog Converter (DAC) manufactured by Microchip Technology. It features an SPI serial interface and integrates Multi-Time Programmable (MTP) memory for nonvolatile storage of configuration and data. The device operates on a single supply voltage ranging from 2.7V to 5.5V, with reduced specifications available between 1.8V and 2.7V. It supports reference sources including VDD, external VREF, or an internal bandgap. Key electrical parameters include a typical settling time of 4 µs, a maximum INL of ±1 LSB, and power-down modes that disconnect the output buffer or select pull-down resistors.

Feature Summary

• Integrates MTP memory allowing user programming of up to 32 locations per register using a high-voltage level on the HVC pin.
• Supports flexible DAC voltage reference selection among device VDD, external VREF pin, or an internal bandgap source.
• Features a four-wire SPI-compatible serial interface supporting write speeds up to 50 MHz and read speeds up to 25 MHz.
• Includes configurable power-down modes that disconnect the output buffer into a high-impedance state or engage internal pull-down resistors.

Applications

• Set point or offset trimming in industrial control systems
• Sensor calibration requiring precise analog signal generation
• Low-power portable instrumentation powered by battery sources
• PC peripherals and data acquisition systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure compatibility with system voltage levels, as specifications vary below 2.7V. Confirm MTP programming requirements, specifically the need for a high-voltage signal on the LAT/HVC pin during memory writes. Check for any recent manufacturing changes or obsolescence notices via the distributor's product change notification records.

Selection Notes

Select this component when a dual-channel 8-bit resolution is sufficient for the application. Consider the MTP memory feature if persistent storage of DAC codes or configuration registers is required without external EEPROM. Evaluate the operating voltage range; full specifications apply above 2.7V, while performance degrades between 1.8V and 2.7V. Ensure the host microcontroller supports the required SPI modes ('00' or '11') and can provide the necessary high voltage for MTP programming if used.

Part Context

This part belongs to the MCP48CXDX1/2 family, which includes single and dual channel variants with 8-bit, 10-bit, and 12-bit resolutions. The 'CMD' designation indicates the inclusion of Nonvolatile MTP memory, distinguishing it from the 'CVD' volatile RAM counterparts. The 'UN' suffix typically denotes the MSOP-10 package option within this family.

Replacement Considerations

For volatile memory applications, consider the MCP48CVD02-E/UN. For higher resolution needs, evaluate the MCP48CMD12-E/UN (10-bit) or MCP48CMD22-E/UN (12-bit). Single-channel equivalents are available as MCP48CMD01-E/UN. Verify pinout compatibility across these family members before substitution.