MCP48CMD02T-E/UN

Overview

The MCP48CMD02T-E/UN is a dual-channel, 8-bit buffered voltage output Digital-to-Analog Converter (DAC) featuring Multi-Time Programmable (MTP) nonvolatile memory and an SPI serial interface. It operates within a supply voltage range of 2.7V to 5.5V for full specifications, with reduced analog specifications available between 1.8V and 2.7V. The device provides integral nonlinearity (INL) of ±1 LSB and supports reference sources including VDD, external VREF, or an internal bandgap (1.214V typical). It offers unity or 2x gain options and includes power-on/brown-out reset protection. The component is housed in a 10-lead MSOP package and supports an extended operating temperature range from -40°C to +125°C.

Feature Summary

• Integrates MTP nonvolatile memory allowing user programming of up to 32 locations per register for persistent DAC settings and configuration.
• Features a four-wire SPI-compatible serial interface supporting write speeds up to 50 MHz and read speeds up to 25 MHz.
• Provides flexible voltage reference selection among device VDD, external VREF pin, or internal bandgap, with selectable output gain.
• Includes configurable power-down modes that disconnect the output buffer or select specific pull-down resistor values.

Applications

• Set point or offset trimming
• Sensor calibration
• Low-power portable instrumentation
• PC peripherals
• Data acquisition systems

Procurement Notes

Verify the ordering suffix 'T' indicates reel packaging and '/UN' specifies the MSOP-10 package type. Confirm the '-E' suffix denotes the extended industrial temperature range (-40°C to +125°C). Ensure the 'CMD' designation matches the requirement for dual-channel devices with MTP memory. Cross-reference the datasheet DS20006667 for complete electrical characteristics and pin configurations before finalizing procurement.

Selection Notes

Select this model when dual-channel 8-bit resolution with nonvolatile storage is required. The MTP capability allows saving DAC codes and device configuration without external EEPROM. Consider the 1.8V to 2.7V operation if lower voltage compatibility is needed, noting reduced analog specifications apply in this range. Verify SPI interface speed requirements against the 50 MHz write and 25 MHz read limits. Ensure the MSOP-10 package fits the PCB layout constraints.

Part Context

This component belongs to the MCP48CXDX family of digital-to-analog converters. The 'C' indicates the buffered voltage output architecture, 'M' signifies MTP nonvolatile memory, 'D' denotes dual channels, and '02' specifies 8-bit resolution. It shares the same core functionality as volatile variants like the MCP48CVD02 but adds persistent memory capabilities. The family also includes single-channel versions and higher resolution options.

Replacement Considerations

For volatile memory applications, the MCP48CVD02T-E/UN is a direct functional substitute lacking MTP. For single-channel needs, consider the MCP48CMD01T-E/UN. Higher resolution requirements may necessitate moving to the MCP48CMD12 or MCP48CMD22 series. Ensure any replacement maintains the MSOP-10 package and SPI interface compatibility.