MCP47CMB21-E/MG

Digital To Analog Converters Overview

The MCP47CMD21-E/MG is a single-channel, 12-bit Digital-to-Analog Converter (DAC) featuring Multi-Time Programmable (MTP) nonvolatile memory and an I2C serial interface. It operates within a supply voltage range of 2.7V to 5.5V for full specifications, or 1.8V to 2.7V with reduced analog performance. The device provides buffered voltage outputs with integral nonlinearity (INL) of ±1 LSB. Reference sources include VDD, an external VREF pin, or an internal 1.214V band gap. It supports Standard (100 kbps), Fast (400 kbps), and High-Speed (up to 3.4 Mbps) I2C modes. The component is housed in a 10-lead MSOP package and functions across an extended temperature range of -40°C to +125°C.

Digital To Analog Converters Feature Summary

• Integrates user-programmable MTP memory allowing up to 32 write cycles per location for persistent storage of DAC values and configuration registers.
• Offers flexible reference voltage selection between the device supply, an external pin, or an internal band gap, with configurable output gain options.
• Includes Power-on/Brown-out Reset protection and multiple power-down modes to manage output buffer states and pull-down resistors.

Digital To Analog Converters Applications

• Set point or offset trimming in industrial control systems
• Sensor calibration requiring precise voltage references
• Low-power portable instrumentation devices
• PC peripherals and data acquisition systems

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. Ensure compatibility with system voltage levels and I2C bus speeds before integration. Cross-reference the datasheet revision to confirm all electrical characteristics match design requirements.

Digital To Analog Converters Selection Notes

Select this component when nonvolatile storage of the DAC output state is required without external EEPROMs. Consider the MTP write limit of 32 cycles for applications involving frequent configuration updates. Evaluate the reduced specification constraints if operating below 2.7V supply voltage.

Digital To Analog Converters Part Context

This device belongs to the MCP47CXBXX family of 8-bit, 10-bit, and 12-bit DACs from Microchip Technology. The family includes variants with volatile RAM or nonvolatile MTP memory, available in single and dual channel configurations. The MCP47CMB21 specifically denotes the single-channel, 12-bit resolution variant with MTP memory.

Digital To Analog Converters Replacement Considerations

Compatible substitutes within the same family include MCP47CVB21 for volatile memory applications or MCP47CMB22 for dual-channel requirements. Verify that alternative packages such as DFN-10 or QFN-16 meet physical footprint constraints.