**The AD5679RBCPZ-2: A 16-Bit, Octal Nano DAC with 5 ppm/°C On-Chip Reference**

In the realm of high-precision digital-to-analog conversion, system designers are constantly challenged to achieve greater accuracy, density, and thermal stability. The **AD5679RBCPZ-2** from Analog Devices stands as a formidable solution, integrating an unprecedented level of performance into a compact package. This device is an **octal, 16-bit nanoDAC®** that combines eight voltage-output DACs with a **5 ppm/°C on-chip reference** in a tiny 4mm x 4mm LFCSP package, setting a new benchmark for space-constrained and performance-critical applications.

The core of the AD5679RBCPZ-2's appeal lies in its exceptional integration. By incorporating a high-stability, low-drift reference voltage on the same silicon as the DAC cores, it eliminates the need for an external reference. This integration is not merely a convenience; it is a critical performance feature. The **5 ppm/°C maximum reference drift** ensures that the output voltage remains stable over a wide temperature range (-40°C to +125°C), which is paramount for applications where ambient temperature fluctuations would otherwise introduce significant error. This inherent stability drastically reduces the bill of materials (BOM), saves valuable PCB space, and simplifies design complexity.

Each of the eight 16-bit DACs offers excellent DC performance, including **±2 mA maximum INL error** and low glitch impulse, ensuring highly accurate and stable output voltages. The device operates from a single 5 V supply, and the DAC outputs can be configured to a range of output spans (0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V) via a serial interface, providing remarkable flexibility. Communication is handled through a versatile serial peripheral interface (SPI) that is compatible with 1.8 V, 3 V, and 5 V logic levels.

The inclusion of per-channel power-on reset to zero-scale/mid-scale and a software power-down function further enhances its utility in power-sensitive systems. The AD5679RBCPZ-2 is ideally suited for a vast array of applications, including industrial process control, ATE (Automatic Test Equipment), data acquisition systems, and optical network control, where multiple channels of precise voltage generation are required in a minimal footprint.

**ICGOOODFIND**: The AD5679RBCPZ-2 is a pinnacle of integrated analog design, offering an unparalleled combination of **channel density, 16-bit precision, and thermal stability**. Its on-chip, ultra-low-drift reference makes it an indispensable component for engineers designing next-generation, high-performance systems where reliability and miniaturization are non-negotiable.

**Keywords**: 16-Bit DAC, On-Chip Reference, 5 ppm/°C, Octal NanoDAC, High Precision