AD5664RBCPZ-3R2

Overview

The AD5664RBCPZ-3R2 is a quad, 16-bit buffered voltage-output digital-to-analog converter (DAC) from Analog Devices. It operates on a single 2.7 V to 5.5 V supply and features an on-chip 1.25 V reference with a temperature coefficient of 5 ppm/°C, yielding a 2.5 V full-scale output range. The device includes rail-to-rail output amplifiers, a power-on reset circuit ensuring outputs start at 0 V, and per-channel power-down modes reducing current to 480 nA at 5 V. It utilizes a versatile 3-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP standards, supporting clock rates up to 50 MHz.

Feature Summary

• Quad 16-bit resolution with guaranteed monotonicity by design
• On-chip 1.25 V reference providing 2.5 V full-scale output range
• Rail-to-rail output swing with 0.5 Ω DC output impedance
• Per-channel power-down mode reduces consumption to 480 nA at 5 V

Applications

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

Procurement Notes

Verify the specific suffix 'R2' against the manufacturer's official ordering guide to confirm packaging details, as datasheet documentation primarily lists MSOP, LFCSP_WD, and WLCSP options without explicit reel specifications for this suffix variant.

Selection Notes

Select the AD5664RBCPZ-3R2 when a quad channel configuration with 16-bit precision and a fixed 1.25 V internal reference is required. Ensure the application supports the 2.5 V full-scale output range dictated by the '-3' suffix. Verify that the 3-wire serial interface timing meets the system's SCLK frequency requirements up to 50 MHz.

Part Context

This component belongs to the nanoDAC family, designed for low-power applications. It shares pin compatibility with the 12-bit (AD5624R) and 14-bit (AD5644R) variants in the same series, allowing for design flexibility across different resolution requirements while maintaining identical package footprints.

Replacement Considerations

The AD5664RBRMZ-3 offers equivalent functionality in an MSOP-10 package. For designs requiring external references, the non-R AD5664 series provides similar electrical characteristics without the integrated reference.