MCP48CVD22-E/MG

Digital To Analog Converters Overview

The MCP48CVD22-E/MG is a dual-channel, 12-bit buffered voltage output Digital-to-Analog Converter (DAC) manufactured by Microchip Technology. It features volatile memory and operates on a single supply voltage ranging from 2.7V to 5.5V, with reduced specifications available for the 1.8V to 2.7V range. The device utilizes an SPI serial interface supporting write speeds up to 50 MHz and read speeds up to 25 MHz. Key electrical characteristics include a typical settling time of 4 µs, an internal band gap reference of 1.214V, and selectable gain options of 1x or 2x. It is housed in a 16-lead QFN package measuring 3 x 3 mm and supports an extended operating temperature range from -40°C to +125°C.

Digital To Analog Converters Feature Summary

• Dual-channel architecture with independent 12-bit resolution and buffered voltage outputs.
• SPI-compatible serial interface enabling high-speed data transfer at 50 MHz write and 25 MHz read rates.
• Flexible reference source selection including VDD, external VREF pin, or internal 1.214V band gap.
• Configurable power-down modes allowing output buffer disconnection or pull-down resistor selection.

Digital To Analog Converters Applications

• Set point or offset trimming in industrial control systems
• Sensor calibration and signal conditioning
• Low-power portable instrumentation
• PC peripherals and data acquisition systems

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the design accounts for the volatile memory nature of the CVD variant, requiring initial configuration upon power-up. Confirm that the system voltage levels are compatible with the specified 2.7V to 5.5V operating range for full specification compliance.

Digital To Analog Converters Selection Notes

Select this component when dual-channel synchronization and high-speed SPI communication are required. The volatile memory characteristic necessitates software initialization after every power cycle. Consider the internal band gap or external reference options based on required accuracy and stability. Verify that the 16-lead QFN package fits the PCB layout constraints and thermal requirements.

Digital To Analog Converters Part Context

This part belongs to the MCP48CXDX1/2 family, which includes single and dual channel variants with 8, 10, and 12-bit resolutions. The 'CVD' designation specifically indicates volatile RAM memory, distinguishing it from the CMD series which features nonvolatile MTP memory. All variants share similar electrical characteristics and SPI interfaces but differ in memory retention capabilities.

Digital To Analog Converters Replacement Considerations

MCP48CMD22-E/MG: Offers identical electrical performance but includes nonvolatile MTP memory for power-up state retention.

Digital To Analog Converters FAQ

What is the maximum SPI clock speed for writing data?

The device supports a write speed of up to 50 MHz.

How does the device handle power-on reset?

It includes Power-on/Brown-out Reset (POR/BOR) protection. The delay from VDD rising above VPOR to the serial interface becoming operational is typically 145 µs for dual output devices.

Can the gain be set to 2x if using the internal band gap reference?

Yes, a gain of 2x is available when not using VDD as the voltage source. When using the internal band gap, the VREF pin voltage must be limited to a maximum of VDD/2 if gain is 2x.