MAX549ACUA+T

Digital To Analog Converters Overview

The MAX549ACUA+T 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 operating temperature range of 0°C to +70°C. Typical operating current is 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 µMAX 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
• Internal power-on reset clears all registers to zero upon initialization

Digital To Analog Converters Applications

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

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature range. Ensure compatibility with system voltage requirements and serial interface protocols before integration. Confirm RoHS compliance status through the latest datasheet revision. Check for availability constraints as distribution channels may vary.

Digital To Analog Converters Selection Notes

Select this component when a dual-channel 8-bit DAC with external reference is required. Verify that the 10MHz serial interface matches the host microcontroller's capabilities. Consider the µMAX package size for space-constrained designs. Ensure the operating temperature range meets the application environment specifications.

Digital To Analog Converters Part Context

The MAX549ACUA+T belongs to the MAX548A/MAX549A/MAX550A family of low-power, single/dual, 8-bit voltage-output DACs. This series is designed for portable and battery-powered applications due to its low power consumption and small package options. The MAX549A specifically distinguishes itself with an external reference input compared to the MAX548A's internal VDD reference.

Digital To Analog Converters Replacement Considerations

Direct substitutes within the same family include the MAX548ACUA+T and MAX550ACUA+T. Verify functional differences such as reference input type and channel count before substitution.