**AD7399BRUZ: A 12-Bit Quad Voltage Output DAC with Serial Interface**

In the realm of digital-to-analog conversion, precision and integration are paramount. The **AD7399BRUZ from Analog Devices** stands out as a highly integrated, quad-channel, 12-bit voltage-output DAC that excels in providing accurate analog outputs from a serial digital input. This device is engineered for applications demanding multiple high-accuracy analog channels in a compact form factor, leveraging a serial interface to simplify communication with microcontrollers and digital systems.

**Key Features and Architecture**

The core of the AD7399BRUZ is its **four 12-bit digital-to-analog converters**, each equipped with its own input register and a DAC register. This dual-buffering allows for simultaneous updates of all DAC outputs via a dedicated LDAC pin, ensuring synchronized output changes—a critical feature in multi-axis control systems and waveform generation. The device operates from a single **2.7 V to 5.5 V supply**, making it suitable for both 3 V and 5 V systems, and typically consumes just 0.6 mW at 3 V, ideal for power-sensitive applications.

Output amplifiers are integrated on-chip, providing **rail-to-rail voltage outputs** that enhance dynamic range and signal integrity. The serial interface is SPI/QSPI/MICROWIRE/DSP compatible, supporting data transfer rates up to 30 MHz, which facilitates rapid programming of output values. The 16-bit data word format includes four bits for DAC selection and 12 bits for data, enabling efficient channel addressing and data writing.

**Applications and Performance**

The AD7399BRUZ is designed for a wide array of applications, including **process control, automated test equipment, data acquisition systems, and digital gain/offset adjustment**. Its quad-channel capability reduces component count and board space, streamlining system design. The DACs exhibit excellent linearity, with a maximum ±1 LSB INL and DNL error, ensuring high accuracy across the entire output range.

Power-down modes are incorporated to reduce current consumption to microampere levels when channels are inactive, enhancing energy efficiency in portable and battery-operated devices. The device is available in a **24-lead TSSOP package**, offering a robust solution for space-constrained environments.

**ICGOOODFIND**

The AD7399BRUZ integrates four precision DACs with serial interface and output amplifiers, delivering high accuracy, low power consumption, and flexible control for multi-channel analog systems.

**Keywords:**

Digital-to-Analog Converter, Quad Channel, Serial Interface, Rail-to-Rail Output, Low Power Consumption