MAX5442BEUB

Digital To Analog Converters Overview

The MAX5442BEUB+ is a serial-input, voltage-output, 16-bit digital-to-analog converter (DAC) from Analog Devices/Maxim Integrated. It operates from a single +5V supply and features an unbuffered output with a low supply current of 120µA. The device provides full 16-bit performance without adjustments, ensuring monotonic operation with ±4 LSB INL and ±1 LSB DNL over the -40°C to +85°C temperature range. It utilizes a 25MHz, 3-wire serial interface compatible with SPI/QSPI/MICROWIRE standards. The DAC includes a power-on reset circuit that clears the output to code 32768 upon initial power application.

Digital To Analog Converters Feature Summary

• Unbuffered voltage output architecture enables low power consumption and direct driving of medium loads exceeding 60kΩ.
• Integrated matched scaling resistors facilitate bipolar output swings when used with an external precision operational amplifier.
• Schmitt-trigger inputs on digital lines allow direct interfacing with optocouplers for isolated applications.

Digital To Analog Converters Applications

• High-resolution offset and gain adjustment circuits
• Industrial process control systems
• Automated test equipment
• Data-acquisition systems

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type, temperature range, and compliance status. Ensure the component matches the required electrical specifications for the target design environment before procurement.

Digital To Analog Converters Selection Notes

Select this component for designs requiring high resolution with low power consumption in a compact footprint. Consider the unbuffered output impedance when designing load interfaces. Verify compatibility with the system's serial communication protocol and ensure appropriate external reference and op-amp selection for bipolar configurations.

Digital To Analog Converters Part Context

This part belongs to the MAX5441–MAX5444 family of 16-bit serial-input DACs. The MAX5442 variant specifically supports bipolar operation via internal scaling resistors and uses a 10-pin µMAX package. It shares architectural similarities with the MAX5441 but differs in pinout and power-on reset behavior.

Digital To Analog Converters Replacement Considerations

The MAX5442AEUB+ is a verified alternative within the same family, offering extended temperature range capabilities (-40°C to +85°C) with similar electrical characteristics.

Digital To Analog Converters FAQ

What is the default DAC output code after power-on?

The power-on reset circuit clears the DAC output to code 32768 when VDD is initially applied.

How does the device handle bipolar operation?

Matched scaling resistors are provided internally for use with an external precision op amp to generate a ±VREF output swing.

Can the digital inputs interface directly with optocouplers?

Yes, Schmitt-trigger inputs are included to accept slow-transition interfaces, allowing direct connection to optocouplers without additional logic.