MAX5380LEUK+T

Digital To Analog Converters Overview

The MAX5380LEUK+T is an 8-bit digital-to-analog converter (DAC) in a 5-pin SOT-23 package. It features a fast-mode I²C-compatible serial interface operating at up to 400kbps and includes an internal +2V reference. The device operates from a supply voltage range of +2.7V to +3.6V with a maximum supply current of 230µA. Key performance metrics include less than ±1LSB integral nonlinearity (INL) and differential nonlinearity (DNL), a full-scale error of less than ±5%, and an output settling time of 20µs. It incorporates a buffered voltage output, a low-power shutdown mode reducing current to under 1µA, and a power-on reset ensuring zero output upon startup.

Digital To Analog Converters Feature Summary

• Integrated internal +2V reference for simplified system design
• Fast-mode I²C-compatible serial interface supporting up to 400kbps data rates
• Low-power shutdown mode reduces supply current to less than 1µA
• Power-on reset circuit ensures DAC outputs are at zero during initial power application

Digital To Analog Converters Applications

• Automatic tuning for Voltage-Controlled Oscillators (VCO)
• Power-amplifier bias control
• Programmable threshold levels
• Automatic gain control
• Automatic offset adjustment

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix 'LEUK' corresponds to the required factory-preset slave address (0x60) and internal reference voltage (+2V). Confirm that the +2.7V to +3.6V supply range aligns with the target system's power rails. Ensure the SOT-23-5 package footprint matches the printed circuit board layout constraints.

Digital To Analog Converters Selection Notes

Select this component when an 8-bit resolution with high accuracy (±1LSB INL/DNL) is required in a miniature surface-mount package. The internal +2V reference eliminates the need for external precision references. Consider the MAX5382LEUK+T if a wider supply voltage range (+2.7V to +5.5V) or a reference proportional to VDD is preferred over the fixed +2V reference.

Digital To Analog Converters Part Context

This part belongs to the MAX5380/MAX5381/MAX5382 family of low-cost, low-power 8-bit DACs. The 'L' suffix indicates a specific preset slave address (0x60), while the 'EUK' denotes the SOT-23-5 package and industrial temperature range (-40°C to +85°C). The '+T' suffix typically signifies tape-and-reel packaging for automated assembly.

Digital To Analog Converters Replacement Considerations

MAX5382LEUK+T offers identical pinout and functionality but supports a wider supply range (+2.7V to +5.5V) with a reference equal to 0.9 x VDD instead of a fixed +2V.

Digital To Analog Converters FAQ

How does the power-on reset function affect the DAC output?

The power-on reset circuit ensures that the DAC output is set to 0V when VDD is first applied or dips below 1.7V, preventing unwanted output voltages during system startup.

What is the significance of the 'L' suffix in the part number?

The 'L' suffix identifies the factory-preset slave address as 0x60 for the I²C-compatible serial interface.

Can the MAX5380LEUK+T operate with external pull-up resistors on the serial lines?

Yes, while external pull-up resistors are not necessary when driven by push-pull drivers, the device can be used in applications requiring them to maintain compatibility with existing I²C systems.