MCP4912-E/P

Digital To Analog Converters Overview

The MCP4912-E/P is a dual 10-bit buffered voltage output Digital-to-Analog Converter (DAC) from Microchip Technology. It operates on a single supply voltage ranging from 2.7V to 5.5V and features an SPI compatible serial interface supporting clock frequencies up to 20 MHz. The device utilizes a resistive string architecture with rail-to-rail outputs, offering a typical settling time of 4.5 µs. It includes selectable unity or 2x gain settings, external voltage reference inputs, and hardware/software shutdown modes. The component is available in a 14-pin PDIP package and supports an extended operating temperature range from -40°C to +125°C.

Digital To Analog Converters Feature Summary

• Dual-channel 10-bit resolution with rail-to-rail buffered voltage outputs
• SPI compatible serial interface with simultaneous latching capability via LDAC pin
• Configurable output gain selection between unity and 2x multiplier modes
• Integrated power-on reset circuitry and individual channel shutdown functionality

Digital To Analog Converters Applications

• Set point or offset trimming in industrial control systems
• Motor control feedback loops requiring precise analog signal generation
• Calibration of optical communication devices
• Digitally-controlled multipliers and dividers

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature grade (-40°C to +125°C) as defined by Microchip standards. Confirm the 'P' suffix corresponds to the 14-lead Plastic Dual In-Line Package (PDIP). Ensure the source documentation matches datasheet DS22250A for accurate electrical specifications and pinout definitions.

Digital To Analog Converters Selection Notes

Select this component when a dual-channel DAC with 10-bit resolution and SPI connectivity is required. Consider the MCP4912 over the MCP4902 if higher resolution is needed, or over the MCP4922 if lower power consumption is prioritized. Verify that the system's digital interface supports standard SPI protocols and that the supply voltage falls within the 2.7V to 5.5V operational range.

Digital To Analog Converters Part Context

The MCP4912 belongs to the MCP49x2 family of dual voltage-output DACs, which also includes the 8-bit MCP4902 and the 12-bit MCP4922. These devices share identical pinouts, interfaces, and general features, differing primarily in resolution and associated accuracy metrics. This family is designed for applications requiring low noise and high accuracy in consumer and industrial environments.

Digital To Analog Converters Replacement Considerations

Direct functional replacements within the same package include the MCP4902-E/P and MCP4922-E/P. Note that these alternatives offer different resolutions (8-bit and 12-bit respectively), which may impact system accuracy and code mapping requirements.