MAX521AEWG+T

Digital To Analog Converters Overview

The MAX521AEWG+T is an octal, 8-bit voltage-output digital-to-analog converter featuring rail-to-rail buffered outputs and a 2-wire serial interface. It operates from a single +5V supply with a reference input range spanning the supply rails. The device supports data rates up to 400kbps and includes individual reference inputs for DAC0–DAC3 and a shared reference for DAC4–DAC7. Key electrical parameters include a settling time of 6µs, a supply current of 24mA in operating mode, and a shutdown current of 4µA. It offers ±1 LSB DNL and ±2 LSB INL accuracy.

Digital To Analog Converters Feature Summary

• Octal architecture with eight independent 8-bit DAC channels
• Rail-to-rail output buffer amplifiers for reduced system component count
• I2C-compatible 2-wire serial interface supporting up to 400kbps
• Double-buffered input configuration allowing simultaneous or individual updates

Digital To Analog Converters Applications

• Minimum component analog systems
• Digital offset and gain adjustment circuits
• Industrial process control instrumentation
• Automatic test equipment
• Programmable attenuators

Digital To Analog Converters Procurement Notes

Verify that the 'T' suffix indicates tape-and-reel packaging, as standard datasheets may list tube packaging for the base part number. Confirm the specific temperature grade associated with the 'E' suffix (-40°C to +85°C) against the required operational environment. Ensure the source document explicitly defines the reel specifications if tape-and-reel handling is critical for assembly.

Digital To Analog Converters Selection Notes

Select this component when an octal DAC configuration is required to minimize PCB space and I/O pin usage on the microcontroller. The buffered rail-to-rail outputs are suitable for driving moderate loads without external amplification. Consider the MAX520 if unbuffered outputs and lower static power consumption (4µA) are prioritized over drive capability.

Digital To Analog Converters Part Context

This part belongs to the MAX520/MAX521 family of quad and octal 8-bit DACs manufactured by Analog Devices Inc./Maxim Integrated. The MAX521 variant specifically provides eight channels with buffered outputs, distinguishing it from the four-channel MAX520. The family is designed for applications requiring simple serial control and high channel density.

Digital To Analog Converters Replacement Considerations

Direct substitutes within the same package and specification include other variants from the MAX521 series, such as MAX521ACWG+ or MAX521BCWG+, depending on the required temperature range and accuracy grade. Verify pin compatibility and electrical characteristics before substitution.