MAX550AEPA+

Digital To Analog Converters Overview

The MAX550AEPA+ is a single-channel, 8-bit voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices under the Maxim Integrated brand. It operates from a single +2.5V to +5.5V supply and features an external reference input. The device utilizes a 10MHz, 3-wire serial interface compatible with SPI/QSPI and Microwire standards. It includes double-buffered inputs for flexible updating and supports independent shutdown modes. The component is housed in an 8-pin Plastic DIP package and is rated for operation within a temperature range of -40°C to +85°C.

Digital To Analog Converters Feature Summary

• Single-channel architecture with external reference input capability
• Compatible with standard 3-wire serial protocols including SPI and Microwire
• Double-buffered input registers allow simultaneous or individual DAC updates
• Asynchronous load input enables independent register updates separate from chip select

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' confirms the extended industrial temperature range (-40°C to +85°C) as defined in the datasheet selector guide. Confirm the 'P' suffix indicates the 8-pin Plastic DIP package type. Ensure compatibility with existing PCB footprints designed for through-hole mounting. Check current availability status as older Maxim products may have limited distribution channels.

Digital To Analog Converters Selection Notes

Select this component when a single-channel DAC with an external reference is required. The MAX550A differs from the MAX548A and MAX549A by providing only one DAC channel while retaining the asynchronous load feature. Verify that the system requires an external reference voltage source rather than utilizing the internal VDD reference found in other family members. Ensure the 8-bit resolution meets the application's accuracy requirements.

Digital To Analog Converters Part Context

The MAX550A belongs to the MAX548A/MAX549A/MAX550A family of low-power, single/dual, 8-bit voltage-output DACs. These devices share common electrical characteristics such as ±1LSB total unadjusted error and low operating currents. The family distinguishes itself through channel count and reference configuration options, offering flexibility for various portable and battery-powered design constraints.

Digital To Analog Converters Replacement Considerations

Direct pin-compatible substitutes within the same series include the MAX548AEPA+ (dual DAC, VDD reference) and MAX549AEPA+ (dual DAC, external reference). Note that these alternatives provide two channels instead of one. Verify that the additional channels do not interfere with board layout or power budget if replacing the single-channel MAX550AEPA+.