**AD7265BSUZ: A Comprehensive Technical Overview of the Dual 12-Bit SAR ADC**

The **AD7265BSUZ** from Analog Devices represents a high-performance, dual-channel solution for precision analog-to-digital conversion. This integrated circuit is a **dual, 12-bit, successive approximation register (SAR)** analog-to-digital converter (ADC) engineered to deliver exceptional speed and accuracy for a wide range of industrial, medical, and communication applications. Its architecture is optimized for systems requiring simultaneous sampling or rapid multiplexing of two analog signals.

A defining characteristic of the AD7265BSUZ is its **fully differential input structure**. This design offers superior noise immunity and robust performance in electrically noisy environments by rejecting common-mode noise. The device features an internal 2.5V reference, which simplifies system design and ensures stable performance, though it also allows for the use of an external reference for greater flexibility. With a **throughput rate of up to 1 MSPS per channel**, it provides the speed necessary for capturing fast-transient signals.

The ADC operates on a single 2.7V to 5.25V supply, making it suitable for both 3V and 5V systems. It includes two on-chip, high-performance sample-and-hold amplifiers and a versatile serial interface (SPI/QSPI/MICROWIRE/DSP compatible) that facilitates easy connection to modern microcontrollers and digital signal processors. The **low power consumption**, typically 13.5 mW at 1 MSPS with a 3V supply, is a critical advantage for power-sensitive portable and battery-operated equipment.

Key applications for this ADC include precision multi-axis motor control, where its dual channels can sample current and voltage phases simultaneously, as well as power line monitoring, medical instrumentation, and high-speed data acquisition systems. Its ability to provide **simultaneous sampling** ensures precise phase relationship preservation between two input signals, which is paramount in control and measurement systems.

ICGOODFIND: The AD7265BSUZ stands out as a highly integrated and efficient solution for designers seeking a reliable, high-speed, dual-channel ADC. Its combination of differential inputs, internal reference, and low power consumption within a small form factor makes it an excellent choice for complex, noise-sensitive applications demanding synchronized data conversion.

**Keywords:** SAR ADC, Simultaneous Sampling, Differential Input, 1 MSPS, Low Power Consumption.