MAX551BCUB+

Digital To Analog Converters Overview

The MAX551BCUB+ is a 12-bit, current-output, multiplying digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +4.5V to +5.25V supply and features a 3-wire serial interface compatible with SPI/QSPI and MICROWIRE standards. The device includes double-buffered logic with a 12-bit input register and DAC register. Key electrical parameters include a settling time of 0.8µs, INL/DNL of ±1 LSB, and a typical supply current of 0.4mA. It is housed in a 10-pin µMAX package.

Digital To Analog Converters Feature Summary

• Multiplying capability for unipolar or bipolar output operation
• Double-buffered serial interface reduces board space
• Internal power-on-reset clears registers on startup
• Asynchronous clear input resets output to zero

Digital To Analog Converters Applications

• Automatic Calibration
• Gain Adjustment
• Transducer Drivers
• Process-Control I/O Boards
• Digitally Controlled Filters

Digital To Analog Converters Procurement Notes

Verify the component against official datasheets to confirm pinout compatibility and electrical specifications before integration. Ensure that the operating voltage range aligns with system requirements. Check for RoHS compliance status if environmental regulations apply to the final assembly. Confirm the package type matches the PCB footprint design.

Digital To Analog Converters Selection Notes

Select this component when a high-resolution, multiplying DAC is required for precision applications. Consider the serial interface constraints and ensure the host microcontroller supports the specific timing requirements. Evaluate the thermal performance within the 10-pin µMAX package for the intended operating environment.

Digital To Analog Converters Part Context

This part belongs to the MAX551/MAX552 family of 12-bit serial DACs. The MAX551 variant specifically targets +5V systems, while the MAX552 is designed for +3V operation. Both share similar architectures but differ in supply voltage ranges and reference inputs.

Digital To Analog Converters Replacement Considerations

Direct substitutes include MAX551BEUB+ and MAX551AEUB+. Verify pin compatibility and electrical characteristics before replacement.

Digital To Analog Converters FAQ

What is the function of the CLR pin?

The CLR pin provides an asynchronous clear function that resets all DAC registers to zero, setting the output voltage to 0V.

How does the serial interface operate?

It uses a 3-wire interface compatible with SPI/QSPI and MICROWIRE standards, clocking data into the input register on the rising edge of SCLK.

Can the MAX551BCUB+ operate in bipolar mode?

Yes, it can provide bipolar outputs when configured with external resistors and operated in 4-quadrant multiplying mode.