AD5662ARMZ-1

Overview

The AD5662ARMZ-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 with typical current consumption of 250 μA at 5 V. The device guarantees 12-bit accuracy and monotonicity by design, featuring ±1 LSB DNL and ±32 LSB INL for the B grade. It utilizes a 3-wire serial interface compatible with SPI, QSPI, Microwire, and DSP standards, supporting clock rates up to 30 MHz. The output amplifier provides rail-to-rail swing, and the part includes power-on reset to zero scale and three software-selectable power-down modes.

Feature Summary

• 16-bit resolution with guaranteed monotonic operation and 12-bit accuracy
• Rail-to-rail buffered voltage output with external reference input
• Low power consumption: 250 μA active, down to 480 nA in power-down mode
• Power-on reset circuit ensures output starts at 0 V for the -1 suffix variant

Applications

• Process control systems
• Portable battery-powered instruments
• Programmable voltage and current sources
• Digital gain and offset adjustment circuits

Procurement Notes

Verify the ordering suffix '-1' confirms the power-on reset state is zero scale rather than midscale. Confirm the package type matches the required footprint, as the AD5662 series is available in both SOT-23 and MSOP packages. Ensure the specific grade (A or B) meets the linearity requirements for the application.

Selection Notes

Select the AD5662ARMZ-1 when a low-power, single-channel 16-bit DAC with rail-to-rail output is required. The -1 suffix is critical if the system requires the DAC output to initialize at 0 V upon power-up. For applications needing midscale initialization, the -2 suffix variant should be selected instead. External reference voltage must be provided within the 0.75 V to VDD range.

Part Context

The AD5662ARMZ-1 belongs to the nanoDAC family, designed for space-constrained and battery-operated applications. It shares architectural similarities with other members like the AD5620/AD5640/AD5660 but differs by requiring an external reference and offering higher resolution. The ARMZ designation indicates the MSOP-8 package variant manufactured by Analog Devices.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material.