MAX5721AUA+

Digital To Analog Converters Overview

The MAX5721AUA+ is a dual 10-bit, low-power, buffered voltage-output digital-to-analog converter (DAC) housed in an 8-pin µMAX package. It operates on a single supply voltage ranging from +2.7V to +5.5V with a typical supply current of 135µA at +5.5V and 112µA at +3.6V. The device features rail-to-rail output buffer amplifiers and accepts an external reference input from 0 to VDD. It supports a 20MHz serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards. The part includes a power-on reset circuit that initializes outputs to zero and offers software-selectable power-down modes reducing current consumption below 0.3µA.

Digital To Analog Converters Feature Summary

• Ultra-low power consumption with 0.3µA power-down current
• Rail-to-rail output buffer amplifiers for full voltage swing
• Safe power-up reset ensuring DAC outputs start at zero volts
• Three software-selectable power-down impedances (1kΩ, 100kΩ, Hi-Z)

Digital To Analog Converters Applications

• Automatic tuning systems
• Gain and offset adjustment circuits
• Power amplifier control interfaces
• Process control I/O boards
• Battery-powered instruments

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'A' indicates the extended automotive temperature range of -40°C to +125°C compared to the 'E' variant. Confirm the package type matches the 8-pin µMAX footprint requirements for your PCB layout. Ensure the ordering documentation explicitly lists Analog Devices Inc./Maxim Integrated as the manufacturer to avoid counterfeit components.

Digital To Analog Converters Selection Notes

Select this component when dual-channel 10-bit resolution is required alongside strict space constraints due to the compact µMAX package. Consider the MAX5721AUA+ if operation within the -40°C to +125°C automotive temperature range is mandatory. Evaluate the 20MHz serial interface speed against your system's clock capabilities and ensure compatibility with standard SPI or Microwire protocols.

Digital To Analog Converters Part Context

This device belongs to the MAX5721 series of low-power DACs. The 'A' suffix specifically denotes the extended industrial/automotive temperature grade (-40°C to +125°C), distinguishing it from the commercial grade 'E' variant (-40°C to +85°C). Both variants share identical electrical characteristics and pinouts but differ in thermal qualification limits.

Digital To Analog Converters Replacement Considerations

The MAX5721EUA+ serves as a direct functional substitute with identical specifications, differing only in the guaranteed operating temperature range (commercial vs. automotive). No other cross-model replacements are confirmed in the provided documentation.