AD5343BRUZ: Dual 12-Bit DAC with I²C Interface and On-Chip Precision Reference

Release date:2025-09-12 Number of clicks:205

**AD5343BRUZ: A Comprehensive Overview of the Dual 12-Bit DAC with I²C Interface and On-Chip Precision Reference**

In the realm of digital-to-analog conversion, precision, integration, and ease of use are paramount. The **AD5343BRUZ** from Analog Devices stands out as a sophisticated solution that expertly addresses these needs. This integrated circuit is a **dual, 12-bit voltage-output digital-to-analog converter (DAC)** that combines high performance with a compact interface, making it an ideal choice for a wide array of applications, from industrial instrumentation to automated test equipment and beyond.

The core of the AD5343BRUZ's appeal lies in its **high level of integration**. A significant feature is its **on-chip, precision 2.5 V reference**. This integrated reference eliminates the need for an external component, which not only saves valuable board space but also reduces the overall bill of materials and design complexity. The internal reference is laser-trimmed during manufacturing, ensuring an initial accuracy of ±2 mV (max) and excellent temperature stability. This guarantees that both DAC channels have a stable and accurate foundation for their output voltages, critical for maintaining system precision over time and across varying environmental conditions.

Communication with the device is streamlined through its **I²C-compatible serial interface**. This two-wire interface is widely adopted in the industry for its simplicity and ability to support multiple devices on the same bus, making it perfect for complex systems requiring control from a central microcontroller. The interface on the AD5343BRUZ operates at clock rates of up to 400 kHz, supporting fast data transfer rates. The DAC also incorporates a power-on reset circuit that ensures the output voltages are set to a known state (0 V) upon startup, a vital feature for fail-safe system operation.

Each of the two 12-bit DAC channels is equipped with its own input register and a DAC register. This dual-buffering architecture allows for simultaneous updates of both DAC outputs via a software command, which is essential for applications requiring tightly synchronized analog signals. The outputs from the DACs provide a range that can be configured, via the gain selection pin, to be either **0 V to VREF (2.5 V) or 0 V to 2 * VREF (5 V)**, offering valuable flexibility to the designer.

Housed in a small **TSSOP-16 package**, the AD5343BRUZ is designed for space-constrained applications without compromising on performance. Its combination of dual-channel output, an integrated precision reference, a simple digital interface, and flexible output ranges makes it a highly versatile and reliable component for modern electronic design.

**ICGOODFIND**: The AD5343BRUZ is a highly integrated and precise dual-channel DAC, offering designers a compact and efficient solution with its built-in voltage reference and user-friendly I²C interface, simplifying system design while ensuring outstanding performance.

**Keywords**: **Digital-to-Analog Converter (DAC)**, **I²C Interface**, **On-Chip Precision Reference**, **Dual Channel**, **12-Bit Resolution**.

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