MAX550ACUA+T

Digital To Analog Converters Overview

The MAX550ACUA+T is an 8-bit, single-channel voltage-output digital-to-analog converter (DAC) from the MAX548A/MAX549A/MAX550A family. It operates on a single +2.5V to +5.5V supply and features a ±1LSB total unadjusted error (TUE) specification guaranteed over temperature. The device utilizes a 10MHz, 3-wire serial interface compatible with SPI, QSPI, and Microwire standards. Operating current is typically 75µA per DAC at VDD = 2.5V, reducing to less than 1µA in shutdown mode. It includes double-buffered inputs for flexible updating and an asynchronous load input. The component is housed in an 8-pin µMAX package.

Digital To Analog Converters Feature Summary

• Single-supply operation ranging from +2.5V to +5.5V
• ±1LSB maximum total unadjusted error (TUE) guaranteed over temperature
• Low power consumption with typical operating current of 75µA and shutdown current under 1µA
• 10MHz 3-wire serial interface compatible with SPI, QSPI, and Microwire standards

Digital To Analog Converters Applications

• Battery-powered systems
• VCXO control
• Comparator-level settings
• GaAs amplifier bias control
• Digital gain and offset control

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'CUA' indicates the commercial temperature range (0°C to +70°C) and the '+T' denotes tape-and-reel packaging. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors before procurement. Ensure the external reference voltage requirements align with system design constraints.

Digital To Analog Converters Selection Notes

Select this component when a single-channel, low-power 8-bit DAC is required in a compact µMAX package. It is suitable for applications needing independent shutdown capabilities and double-buffered inputs for simultaneous updates. Verify that the external reference voltage source impedance is below 3Ω to minimize INL errors.

Digital To Analog Converters Part Context

The MAX550A is part of a series including the dual-channel MAX548A and MAX549A. Unlike the MAX548A which uses VDD as the reference, the MAX550A requires an external reference input. It shares the same low-power architecture and serial interface compatibility as its counterparts but offers single-channel output flexibility.

Digital To Analog Converters Replacement Considerations

Direct replacements within the same family include the MAX550AEUA+T for extended temperature ranges (-40°C to +85°C). Cross-family replacements should be evaluated based on resolution, channel count, and interface compatibility.