MAX549AEPA+

Digital To Analog Converters Overview

The MAX549AEPA+ is a dual-channel, 8-bit voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +2.5V to +5.5V supply and features an external reference input. The device guarantees ±1LSB total unadjusted error (TUE) over the temperature range of -40°C to +85°C. Operating current is typically 150µA per DAC at VREF = +2.5V, with shutdown current reduced to less than 1µA. It utilizes a 10MHz, 3-wire serial interface compatible with SPI/QSPI and Microwire standards. The component is housed in an 8-pin Plastic DIP package.

Digital To Analog Converters Feature Summary

• Dual-channel architecture with independent shutdown capability for each DAC
• External reference input for flexible full-scale output configuration
• Double-buffered inputs allowing individual or simultaneous register updates
• Power-on reset mechanism clears all internal registers to zero upon initialization

Digital To Analog Converters Applications

• Battery-powered systems requiring low power consumption
• VCXO control circuits
• Comparator-level setting adjustments
• GaAs amplifier bias control
• Digital gain and offset control applications

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'E' indicates the extended industrial temperature range (-40°C to +85°C). Confirm the 'PA' suffix corresponds to the 8-pin Plastic DIP package type. Ensure compatibility with the required serial interface protocol settings before integration into the design.

Digital To Analog Converters Selection Notes

Select this component when a dual-channel DAC with an external reference is required. The MAX549A differs from the MAX548A by using an external reference instead of VDD. Choose the 'E' grade version for operation below 0°C. Verify that the 8-bit resolution meets the system accuracy requirements.

Digital To Analog Converters Part Context

This part belongs to the MAX548A/MAX549A/MAX550A family of low-power, single/dual, 8-bit voltage-output DACs. These devices are designed for portable and battery-powered applications due to their low power consumption and small package options. The family shares similar serial interface protocols but varies in channel count and reference input configurations.

Digital To Analog Converters Replacement Considerations

Direct substitutes within the same family include the MAX549ACPA+ for commercial temperature ranges. Other variants like the MAX548A or MAX550A offer different reference or channel configurations and may require schematic modifications.