MCP48CMD01-E/MG

Overview

The MCP48CMD01-E/MG is a single-channel, 8-bit 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 buffered voltage outputs with integral nonlinearity (INL) specified at 1 LSB. Reference sources include VDD, external VREF, or an internal band gap. It supports gain options of 1x or 2x and includes power-down modes. The component is housed in a QFN-16 package and functions across an extended temperature range of -40°C to +125°C.

Feature Summary

• Integrates MTP nonvolatile memory allowing user programming of output values and configuration registers.
• Features buffered voltage outputs with selectable reference sources including internal band gap.
• Supports high-speed SPI communication with write speeds up to 50 MHz.
• Includes power-on/brown-out reset protection and configurable power-down modes.

Applications

• Set point or offset trimming
• Sensor calibration
• Low-power portable instrumentation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. Ensure that the required programming voltage on the LAT/HVC pin is supported by the host system design before procurement.

Selection Notes

Select this model when volatile memory is insufficient for retaining DAC settings after power loss. Confirm that the application requires a single channel with 8-bit resolution. Verify that the host controller can provide the necessary high-voltage signal for MTP programming if persistent storage is utilized.

Part Context

This component belongs to the MCP48CXDX1/2 family of digital-to-analog converters. The family encompasses single and dual channel variants with resolutions ranging from 8-bit to 12-bit. The CMD variant specifically denotes the inclusion of nonvolatile MTP memory, distinguishing it from the volatile CVD series within the same product line.

Replacement Considerations

MCP48CVD01-E/MG: Volatile memory version without MTP capabilities.

FAQ

How many times can the MTP memory be programmed?

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

What is the function of the LAT/HVC pin?

The LAT/HVC pin is used to latch data into the output register and must receive a high-voltage level (typically 7.5V) to enable MTP programming operations.

Can the device operate with an external reference voltage?

Yes, the VREF pin allows for an external reference voltage input, which can be used in either buffered or unbuffered modes depending on the configuration.