MAX5442BCUB+

Digital To Analog Converters Overview

The MAX5442BCUB+ 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 provides full 16-bit performance with ±4 LSB integral nonlinearity (INL) and ±1 LSB differential nonlinearity (DNL). The device features an unbuffered output capable of driving loads greater than 60kΩ, with a typical settling time of 1µs for a full-scale step. It utilizes a 25MHz, 3-wire serial interface compatible with SPI/QSPI/MICROWIRE standards. The part is housed in a 10-pin µMAX package and supports an operating temperature range of 0°C to +70°C.

Digital To Analog Converters Feature Summary

• Provides full 16-bit resolution without requiring external adjustments or trimming.
• Features an asynchronous clear input that resets the DAC output to mid-scale code 32768 independent of the serial interface.
• Includes internal matched scaling resistors designed for use with an external precision operational amplifier to generate bipolar output swings.
• Incorporates Schmitt-trigger inputs on digital pins to 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 suffix BCUB against the manufacturer's current ordering information to confirm the package type, temperature range, and lead-free status. Ensure the design accommodates the 10-pin µMAX footprint and validates the +5V supply requirement. Confirm RoHS compliance documentation matches the project specifications before finalizing procurement.

Digital To Analog Converters Selection Notes

Select this component when a single-channel, 16-bit voltage-output DAC is required with a +5V supply. The MAX5442 variant is specifically chosen over the MAX5441 because it includes internal scaling resistors necessary for bipolar operation using an external op amp. Verify that the load impedance exceeds 60kΩ to maintain specified linearity if operating in unbuffered mode.

Digital To Analog Converters Part Context

This device belongs to the MAX5441–MAX5444 family of serial-input DACs. The MAX5442 differs from the MAX5441 by offering bipolar capability through internal matched resistors and powering up to code 32768 rather than zero. It shares the same 16-bit architecture and serial interface as the rest of the series but requires a 10-pin package compared to the 8-pin version used by the MAX5441.

Digital To Analog Converters Replacement Considerations

The MAX5441ACUA+ serves as a functional substitute for unipolar applications, though it lacks bipolar scaling resistors and powers up to code 0. The MAX5442AEUB+ offers extended temperature range (-40°C to +85°C) with tighter INL specifications (±2 LSB) compared to the BCUB variant.