**AD5679RBCPZ-1: A 16-Channel, 16-Bit SPI Voltage Output DAC with 5 ppm/°C On-Chip Reference**

In the realm of high-precision digital-to-analog conversion, the **AD5679RBCPZ-1** stands out as a premier solution for applications demanding unparalleled accuracy, channel density, and integration. This 16-bit, 16-channel voltage output DAC integrates a high-performance, low-drift internal reference, establishing a new benchmark for system design in industrial automation, test and measurement equipment, and communication infrastructure.

The core of the device's performance lies in its **16-bit resolution**, ensuring excellent differential non-linearity (DNL) and integral non-linearity (INL). This guarantees that each of the 16 channels provides a highly accurate analog output, minimizing the need for complex calibration routines. The outputs can be configured to operate in a **0 V to 5 V or 0 V to 10 V range**, offering flexibility for a wide array of interface requirements.

A defining feature of the AD5679RBCPZ-1 is its **5 ppm/°C on-chip reference**. The ultra-low temperature drift of this integrated voltage reference is critical for maintaining accuracy over a wide operating temperature range (-40°C to +105°C). This eliminates the cost, board space, and design complexity associated with sourcing and integrating a discrete high-precision reference, making the system inherently more stable and reliable.

Communication is handled via a versatile **3-wire serial peripheral interface (SPI)** that operates at clock rates up to 50 MHz, facilitating fast data updates and efficient control. The interface includes a daisy-chain capability and a reset function, simplifying communication in complex multi-device systems. Each DAC channel is equipped with its own input register and a DAC register, allowing for simultaneous updates of all outputs via an asynchronous LDAC pin, which is essential for synchronized multi-channel applications.

The device is offered in a compact, 5 mm x 5 mm, 40-lead LFCSP package, making it an ideal choice for space-constrained designs without compromising on functionality or performance.

**ICGOOODFIND:** The AD5679RBCPZ-1 integrates an exceptional 16-bit DAC core, a ultra-stable on-chip reference, and high channel density into a single package. It is the optimal choice for designers seeking to **enhance system accuracy, reduce board space, and simplify calibration** in multi-channel control and instrumentation systems.

**Keywords:** 16-Bit DAC, SPI Interface, 5 ppm/°C Reference, Voltage Output, 16-Channel.