AD5662BRMZ-1

Overview

The AD5662BRMZ-1 is a single-channel, 16-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family. It operates on a single 2.7 V to 5.5 V supply and guarantees monotonicity by design. The device features a power-on reset circuit that ensures the output powers up to zero scale (0 V). It incorporates a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, supporting clock rates up to 30 MHz. Typical power consumption is 250 μA at 5 V, reducing to 480 nA in power-down mode. The output amplifier provides rail-to-rail swing.

Feature Summary

• 16-bit resolution with guaranteed 12-bit accuracy and monotonic operation
• Power-on reset to zero scale for safe startup conditions
• Low power consumption: 250 μA active, 480 nA in power-down
• Rail-to-rail output buffer with remote sensing capability via VFB pin

Applications

• Process control systems
• Portable battery-powered instruments
• Programmable voltage and current sources
• Data acquisition systems

Procurement Notes

Verify the suffix -1 confirms the zero-scale power-on reset function. Confirm the package type matches the required board layout, as this part is available in SOT-23 and MSOP variants. Check automotive qualification status if operating in harsh environments. Ensure external reference voltage requirements are met for the desired output range.

Selection Notes

Select the AD5662BRMZ-1 when a zero-scale power-up state is required for system safety or initialization. Compare against the AD5662x-2 variant if midscale power-up is preferred. Consider the 12-bit guaranteed accuracy specification against application tolerance requirements. Evaluate the 30 MHz serial interface speed against microprocessor capabilities.

Part Context

This component belongs to the AD5662 nanoDAC family, which includes variants with different power-on reset behaviors and resolutions. The BRMZ designation indicates the industrial temperature grade (-40°C to +125°C) and the MSOP package style. Related parts include the AD5660 series with internal references and the AD5662x-2 with midscale reset.

Replacement Considerations

The AD5662ARJ-2 serves as a functional alternative but provides midscale power-on reset instead of zero scale. Verify package compatibility between SOT-23 and MSOP options when substituting. Ensure serial interface timing parameters remain within acceptable limits for the replacement device.