**AD7265BCPZ: A 12-Bit, 3 MSPS, Dual Simultaneous Sampling SAR ADC**

In the realm of data acquisition systems, particularly those involving precision measurement and control of multi-phase systems, the ability to capture multiple analog signals at the exact same instant is paramount. The **AD7265BCPZ from Analog Devices** stands out as a critical component engineered specifically for this challenging task. This integrated circuit is a **12-bit, 3 MSPS (Mega Samples Per Second), dual simultaneous sampling SAR ADC**.

The core of the AD7265BCPZ's functionality lies in its sophisticated **Successive Approximation Register (SAR)** architecture. The SAR methodology is renowned for its precision and speed, making it ideal for applications that require a solid balance between resolution and sampling rate without the pipeline delays associated with other ADC types. This device integrates two complete SAR ADCs on a single monolithic chip. Each ADC features its own track-and-hold amplifier, allowing both channels to sample their respective input signals **simultaneously**. This eliminates phase delay between channels, a critical factor in power quality monitoring, poly-phase motor control, and instrumentation.

A key feature of the AD7265BCPZ is its high throughput rate of **3 MSPS**. This speed ensures that even rapidly changing signals can be digitized with high fidelity, capturing essential details for real-time analysis and processing. The **12-bit resolution** provides 4,096 discrete digital codes, offering excellent dynamic range and fine granularity for accurate representation of analog inputs.

The device is designed for ease of integration and flexibility. It operates from a single 2.7 V to 5.25 V supply, making it suitable for both 3 V and 5 V systems. It includes a versatile serial interface that is compatible with several standards, including SPI, QSPI, MICROWIRE, and DSP, ensuring seamless communication with a wide array of microcontrollers, processors, and digital systems. Furthermore, the AD7265BCPZ incorporates an internal 2.5 V reference, which simplifies system design and reduces the bill of materials, though it also allows for the use of an external reference for applications demanding higher precision or specific voltage requirements.

Housed in a compact 32-lead LFCSP (Lead Frame Chip Scale Package), the AD7265BCPZ is built for performance in space-constrained environments. Its robust design is tailored for demanding industrial applications, including:

* **AC Motor Control and Drives:** For simultaneous sampling of phase currents and voltages.

* **Power Quality Monitoring and Protection Systems:** For analyzing harmonics and waveforms across multiple phases.

* **Multi-Axis Positioning Systems:** Where simultaneous feedback from multiple sensors is required.

* **Medical Instrumentation:** Especially in advanced imaging and diagnostic equipment.

ICGOOODFIND: The **AD7265BCPZ** is a highly integrated, high-performance solution that **masterfully combines dual-channel simultaneous sampling with high speed and precision**. Its embedded reference and flexible interface make it a superior choice for designers tackling complex, multi-channel data acquisition challenges in industrial and instrumentation markets.

**Keywords:** Simultaneous Sampling, SAR ADC, 12-Bit Resolution, 3 MSPS, Dual Channel.