**AD7942BRMZ: A 14-Bit, 250 kSPS Pseudo Differential SAR ADC for Precision Data Acquisition Systems**

In the realm of precision data acquisition, the choice of analog-to-digital converter (ADC) is paramount, dictating the system's overall accuracy, speed, and power efficiency. The **AD7942BRMZ from Analog Devices** stands out as a compelling solution, engineered to deliver high performance in a compact form factor. This 14-bit, 250 kSPS successive approximation register (SAR) ADC is specifically designed for applications demanding **exceptional precision and robust operation** in noisy environments.

At the core of the AD7942BRMZ's design is its **pseudo differential input structure**. This architecture offers a superior alternative to single-ended inputs by providing excellent common-mode noise rejection. It effectively cancels out noise that is common to both input lines, which is a critical capability in industrial settings where motors, power lines, and other equipment generate significant electromagnetic interference (EMI). This makes the ADC particularly suitable for applications such as battery-powered equipment, medical instrumentation, and industrial process controls.

The device operates on a single power supply ranging from **2.3 V to 5.5 V**, contributing to its remarkable flexibility. Its low power consumption is a key feature, drawing only 6.5 mW at 5 V and 250 kSPS, and scaling down significantly at lower throughput rates. This low-power characteristic is essential for portable and battery-operated devices where extending battery life is a primary design goal.

Furthermore, the AD7942BRMZ integrates a high-speed serial interface and a low-drift internal reference (2.5 V), simplifying system design and reducing the bill of materials. Its operation is guaranteed over the industrial temperature range (-40°C to +85°C), ensuring reliability across challenging environments. The **14-bit resolution ensures no missing codes**, providing designers with the confidence that the ADC will deliver accurate data across its entire operating range.

**ICGOOODFIND**: The AD7942BRMZ is a highly integrated, high-performance SAR ADC that masterfully balances speed, accuracy, and power efficiency. Its pseudo differential input and wide supply range make it an indispensable component for designers building resilient and precise data acquisition systems for industrial, medical, and portable applications.

**Keywords**: **Pseudo Differential Input**, **14-Bit Resolution**, **250 kSPS**, **Low Power Consumption**, **SAR ADC**.