MCP48CMD02T-E/MG

Overview

The MCP48CMD02T-E/MG is a dual-channel, 8-bit Digital-to-Analog Converter (DAC) from Microchip Technology. It features buffered voltage outputs and an SPI serial interface. The device utilizes Multi-Time Programmable (MTP) memory for nonvolatile storage of configuration and output values. Operating specifications are defined for supply voltages between 2.7V and 5.5V, with reduced analog specifications available for the 1.8V to 2.7V range. Key electrical parameters include a typical settling time of 4 µs, a gain error of ±0.6% of Full Scale Range (FSR), and an Integral Nonlinearity (INL) of ±1 LSB. The component supports power-down modes and operates within an extended temperature range of -40°C to +125°C.

Feature Summary

• Dual-channel architecture with buffered voltage outputs
• Nonvolatile MTP memory retaining up to 32 write cycles per location
• SPI-compatible serial interface supporting high-speed operations
• Configurable reference sources including internal band gap or external pins

Applications

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

Procurement Notes

Verify the specific ordering suffix MG against official Microchip documentation to confirm package type and tape/reel specifications. Ensure the selected variant matches the required operating voltage range and temperature grade. Cross-reference the datasheet revision date to confirm parameter validity. Confirm availability through authorized distributors as stock levels fluctuate.

Selection Notes

Select this component when dual-channel 8-bit resolution with nonvolatile memory retention is required. Verify that the SPI interface speed requirements align with the system clock capabilities. Consider the 1.8V to 2.7V reduced specification range if operating at lower supply voltages. Ensure the package footprint matches the PCB layout constraints for the MSOP-10 or equivalent variant indicated by the suffix.

Part Context

This part belongs to the MCP48CXDX1/2 family of digital-to-analog converters. The 'CMD' designation indicates the presence of nonvolatile MTP memory, distinguishing it from volatile RAM-based variants like the CVD series. The '02' suffix specifies the dual-channel configuration with 8-bit resolution. This family provides a balance of precision and flexibility for embedded control applications requiring persistent DAC settings.

Replacement Considerations

MCP48CMD02-E/MF

FAQ

What is the maximum number of write cycles supported by the MTP memory?

The MTP memory locations can be written up to 32 times. After 32 cycles, subsequent writes are inhibited.

How does the device handle power-on reset conditions?

The device includes Power-on Reset (POR) and Brown-out Reset (BOR) protection to ensure stable operation during power transitions.

Can the gain be adjusted for external reference inputs?

Yes, the device offers gain options of 1x (unity) and 2x when using an external VREF pin, provided the VREF voltage is limited appropriately relative to VDD.