**AD7304BRZ: A Comprehensive Technical Overview of the 8-Bit Dual Voltage Output DAC**

The **AD7304BRZ** from Analog Devices represents a highly integrated, precision 8-bit digital-to-analog converter (DAC) designed to deliver dual voltage outputs from a single chip. This device is engineered for applications requiring compact size, low power consumption, and reliable performance, making it a versatile solution for a wide range of industrial, communication, and instrumentation systems.

Housed in a compact SOIC-8 package, the AD7304BRZ integrates two complete 8-bit DACs, each with its own input latch and a output buffer amplifier. A key feature of this DAC is its operation from a **single 2.7V to 5.5V supply**, making it ideal for both 3V and 5V systems. Each channel can source up to **5 mA of output current**, allowing it to drive a variety of loads directly.

The converter utilizes a segmented R-2R ladder architecture to ensure accurate and monotonic digital-to-analog conversion. It communicates via a standard 3-wire serial interface (CLK, DIN, SYNC), which is compatible with SPI, QSPI, and MICROWIRE protocols, facilitating easy connection to modern microcontrollers and digital signal processors (DSPs). The serial data format is 16 bits, with 8 bits dedicated to the DAC input data and 4 bits for DAC selection and control.

The **dual voltage outputs are updated simultaneously** upon the completion of a write cycle to the second DAC, ensuring synchronized output changes critical for applications like differential signal generation. The output amplifiers are designed to provide a rail-to-rail output swing, maximizing the dynamic range available from the supply voltage. The device exhibits a typical settling time of 8 μs to within ±½ LSB, enabling rapid response in dynamic applications.

Power consumption is a standout attribute, with a typical low power rating of **3 mW at 5V** and 1.5 mW at 3V. It also features a software-programmable power-down mode, reducing consumption to just 1 μA, which is essential for battery-powered and portable equipment.

Primary applications include:

* Digital gain and offset adjustment

* Programmable voltage and current sources

* Portable instrumentation

* Process control and automation

* Waveform generation

**ICGOODFIND**: The AD7304BRZ is a highly efficient and compact dual-channel DAC solution, offering an exceptional blend of **low power consumption**, a simple serial interface, and rail-to-rail output buffers. Its ability to operate from a single low-voltage supply and provide two synchronized voltage outputs makes it an excellent choice for space-constrained and power-sensitive designs.

**Keywords**: 8-Bit DAC, Dual Voltage Output, Low Power Consumption, Serial Interface, Rail-to-Rail Output