MAX548AEUA+T

Digital To Analog Converters Overview

The MAX548AEUA+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 internal reference connected to VDD. The device utilizes a 10MHz, 3-wire serial interface compatible with SPI/QSPI and Microwire standards. Key electrical specifications include a maximum total unadjusted error (TUE) of ±1 LSB over the operating temperature range, typical operating current of 150µA per DAC at VREF = +2.5V, and shutdown current less than 1µA. It is housed in an 8-pin µMAX package.

Digital To Analog Converters Feature Summary

• Dual-channel architecture with independent shutdown capability for each DAC channel
• Internal power-on reset mechanism that clears all registers to zero upon initialization
• Double-buffered input registers allowing flexible simultaneous or individual updates
• Asynchronous load input (LDAC) enabling independent register updates separate from chip select

Digital To Analog Converters Applications

• Battery-powered portable systems requiring low power consumption
• Variable frequency crystal oscillator (VCXO) control circuits
• Comparator-level setting adjustments
• GaAs amplifier bias control applications
• Digital gain and offset control loops

Digital To Analog Converters Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the presence of the '+T' suffix indicates tape-and-reel packaging if required for automated assembly. Ensure the 'E' designation matches the -40°C to +85°C industrial temperature grade specified for this part number. Cross-reference datasheet revision dates to ensure compatibility with design requirements.

Digital To Analog Converters Selection Notes

Select the MAX548AEUA+T when a dual-channel configuration with internal VDD reference is necessary. Compare against MAX549A if an external reference input is preferred. Consider the MAX550A for single-channel applications requiring asynchronous loading. Verify that the 8-bit resolution and unbuffered output impedance meet the specific load requirements of the target circuit design.

Digital To Analog Converters Part Context

This component belongs to the MAX548A/MAX549A/MAX550A family of low-power, single/dual, 8-bit voltage-output DACs. The series is characterized by its small µMAX package size, which is 50% smaller than standard 8-pin SO packages. These devices are designed for portable and battery-powered applications where space and power efficiency are critical constraints.

Digital To Analog Converters Replacement Considerations

Direct substitutes within the same package and specification include MAX548AEPA (Plastic DIP). For external reference variants, consider MAX549AEUA+T. Single-channel alternatives include MAX550AEUA+T. Verify pinout compatibility and temperature range alignment before substitution.