**AD7322BRUZ-REEL7: A 12-Bit, Dual-Channel Software-Selectable Input ADC for Precision Measurement Systems**

In the realm of precision measurement, the choice of analog-to-digital converter (ADC) is paramount. The **AD7322BRUZ-REEL7** from Analog Devices stands out as a sophisticated solution engineered for high-accuracy systems requiring versatile signal acquisition. This 12-bit, dual-channel ADC integrates advanced features that make it exceptionally suitable for complex industrial, medical, and instrumentation applications.

At its core, the AD7322 is a **12-bit successive approximation register (SAR) ADC** capable of throughput rates up to 500 kSPS. This high-speed performance ensures that even rapidly changing signals are captured with minimal latency, a critical requirement for real-time control and monitoring systems. The device's **true bipolar input ranges** are a key differentiator. Through software configuration, each of its two channels can independently be set to one of four input ranges: ±10 V, ±5 V, ±2.5 V, and 0 to +10 V. This unparalleled flexibility allows designers to interface directly with a wide variety of sensors and signal sources—from high-voltage industrial transducers to low-voltage bridge sensors—without the need for additional external conditioning circuitry, thereby simplifying board design and reducing the bill of materials.

The **software-selectable input functionality** is managed via a high-speed serial interface (SPI/QSPI/MICROWIRE/DSP compatible), which also facilitates easy communication with most modern microcontrollers and digital signal processors. This interface is used not only for data retrieval but also for writing to the on-chip register to control channel selection, input range, and coding format (straight binary or two's complement).

Furthermore, the AD7322 incorporates several features that enhance its precision in demanding environments. It includes a **2.5 V internal reference**, which is essential for maintaining accuracy and reducing dependency on external components. The device also boasts **high impedance analog inputs** that minimize loading on the source signal, and it offers outstanding AC performance, making it suitable for applications involving AC signals like vibration analysis or power quality monitoring.

Packaged in a compact **TSSOP-16**, the AD7322BRUZ-REEL7 is designed for space-constrained applications. The "REEL7" suffix indicates it is supplied on a 7-inch reel, making it optimized for automated assembly processes in high-volume manufacturing.

**ICGOODFIND:** The AD7322BRUZ-REEL7 is a highly integrated and versatile ADC that excels in systems demanding **high precision, input flexibility, and simplified design**. Its software-configurable bipolar input ranges and dual-channel architecture make it an superior choice for sophisticated multi-sensor measurement systems.

**Keywords:** 12-Bit ADC, Software-Selectable Input, Dual-Channel, SAR ADC, Precision Measurement.